首页 > 最新文献

Bulletin of Entomological Research最新文献

英文 中文
Identification and validation of reference genes for RT-qPCR analysis in Sclerodermus guani (Hymenoptera: Bethylidae). Sclerodermus guani (Hymenoptera: Bethylidae) RT-qPCR 分析参考基因的鉴定和验证。
IF 1.6 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-10-01 Epub Date: 2024-10-07 DOI: 10.1017/S0007485324000427
Rina Zhao, Xiaomeng Guo, Ling Meng, Baoping Li

Gene expression studies in organisms are often conducted using reverse transcriptase-quantitative polymerase chain reaction (RT-qPCR), and the accuracy of RT-qPCR results relies on the stability of reference genes. We examined ten candidate reference genes in Sclerodermus guani, a parasitoid wasp that is a natural enemy of long-horned beetle pests in forestry, including ACT, EF1α, Hsc70, Hsp70, SRSF7, α-tubulin, RPL7A, 18S, 28S, and SOD1, regarding variable biotic and abiotic factors such as body part, life stage, hormone, diet, and temperature. Data were analysed using four dedicated algorithms (ΔCt, BestKeeper, NormFinder, and geNorm) and one comparative tool (RefFinder). Our results showed that the most stable reference genes were RPL7A and EF1α regarding the body part, SRSF7 and Hsc70 regarding the diet, RPL7A and α-tubulin regarding the hormone, SRSF7 and RPL7A regarding the life stage, and SRSF7 and α-tubulin regarding temperature. To ascertain the applicability of specific reference genes, the expression level of the target gene (ACPase) was estimated regarding the body part using the most stable reference genes, RPL7A and EF1α, and the least stable one, SOD1. The highest expression level of ACPase was observed in the abdomen, and the validity of RPL7A and EF1α was confirmed. This study provides, for the first time, an extensive list of reliable reference genes for molecular biology studies in S. guani.

生物体内的基因表达研究通常使用反转录酶-定量聚合酶链反应(RT-qPCR)进行,而 RT-qPCR 结果的准确性取决于参考基因的稳定性。我们研究了林业长角蠹害虫的天敌寄生蜂 Sclerodermus guani 的十个候选参考基因,包括 ACT、EF1α、Hsc70、Hsp70、SRSF7、α-tubulin、RPL7A、18S、28S 和 SOD1,研究涉及身体部位、生命阶段、激素、饮食和温度等可变生物和非生物因素。数据分析采用了四种专用算法(ΔCt、BestKeeper、NormFinder 和 geNorm)和一种比较工具(RefFinder)。结果表明,最稳定的参考基因是与身体部位有关的 RPL7A 和 EF1α、与饮食有关的 SRSF7 和 Hsc70、与激素有关的 RPL7A 和 α-微管蛋白、与生命阶段有关的 SRSF7 和 RPL7A 以及与温度有关的 SRSF7 和 α-微管蛋白。为了确定特定参考基因的适用性,使用最稳定的参考基因 RPL7A 和 EF1α,以及最不稳定的参考基因 SOD1 估算了目标基因(ACPase)在身体部位的表达水平。腹部的 ACPase 表达水平最高,RPL7A 和 EF1α 的有效性也得到了证实。该研究首次为瓜尼蛙的分子生物学研究提供了一份广泛而可靠的参考基因列表。
{"title":"Identification and validation of reference genes for RT-qPCR analysis in <i>Sclerodermus guani</i> (Hymenoptera: Bethylidae).","authors":"Rina Zhao, Xiaomeng Guo, Ling Meng, Baoping Li","doi":"10.1017/S0007485324000427","DOIUrl":"10.1017/S0007485324000427","url":null,"abstract":"<p><p>Gene expression studies in organisms are often conducted using reverse transcriptase-quantitative polymerase chain reaction (RT-qPCR), and the accuracy of RT-qPCR results relies on the stability of reference genes. We examined ten candidate reference genes in <i>Sclerodermus guani</i>, a parasitoid wasp that is a natural enemy of long-horned beetle pests in forestry, including <i>ACT, EF1α, Hsc70, Hsp70, SRSF7, α-tubulin, RPL7A, 18S, 28S,</i> and <i>SOD1</i>, regarding variable biotic and abiotic factors such as body part, life stage, hormone, diet, and temperature. Data were analysed using four dedicated algorithms (ΔCt, BestKeeper, NormFinder, and geNorm) and one comparative tool (RefFinder). Our results showed that the most stable reference genes were <i>RPL7A</i> and <i>EF1α</i> regarding the body part, <i>SRSF7</i> and <i>Hsc70</i> regarding the diet, <i>RPL7A</i> and <i>α-tubulin</i> regarding the hormone, <i>SRSF7</i> and <i>RPL7A</i> regarding the life stage, and <i>SRSF7</i> and <i>α-tubulin</i> regarding temperature. To ascertain the applicability of specific reference genes, the expression level of the target gene (<i>ACPase</i>) was estimated regarding the body part using the most stable reference genes, <i>RPL7A</i> and <i>EF1α</i>, and the least stable one, <i>SOD1</i>. The highest expression level of <i>ACPase</i> was observed in the abdomen, and the validity of <i>RPL7A</i> and <i>EF1α</i> was confirmed. This study provides, for the first time, an extensive list of reliable reference genes for molecular biology studies in <i>S. guani</i>.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"613-621"},"PeriodicalIF":1.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142380082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of the immune transcriptome of the invasive pest spotted wing drosophila infected by Steinernema carpocapsae. 入侵害虫斑翅果蝇感染 Steinernema carpocapsae 后的免疫转录组分析。
IF 1.6 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-10-01 Epub Date: 2024-09-27 DOI: 10.1017/S0007485324000543
A Garriga, D Toubarro, A Morton, N Simões, F García-Del-Pino

Drosophila suzukii is a pest of global concern due to its great impact on several crops. The entomopathogenic nematode Steinernema carpocapsae was highly virulent to the larvae of the fly although some immune mechanisms were triggered along the infection course. Thus, to understand the gene activation profile we performed a comparative transcriptome of D. suzukii larvae infected with S. carpocapsae and Xenorhabdus nematophila to map the differentially expressed genes involved in the defence response. The analysis exposed the induction of genes involved in the humoral response such as the antimicrobial peptides and pattern-recognition receptors while there was a suppression of the cellular defence. Besides, genes involved in melanisation, and clot formation were downregulated hindering the encapsulation response and wound healing. After the infection, larvae were in a stress condition with an enrichment of metabolic and transport functionalities. Concerning the stress response, we observed variations of the heat-shock proteins, detoxification, and peroxidase enzymes. These findings set a genetical comprehensive knowledge of the host-pathogen relation of D. suzukii challenged with S. carpocapsae which could support further comparative studies with entomopathogenic nematodes.

铃木果蝇是一种全球关注的害虫,因为它对多种农作物造成了严重影响。虽然在感染过程中会触发一些免疫机制,但昆虫病原线虫Steinernema carpocapsae对果蝇幼虫具有很强的毒性。因此,为了了解基因激活的情况,我们对感染了S. carpocapsae和Xenorhabdus nematophila的D. suzukii幼虫进行了转录组比较,以绘制参与防御反应的差异表达基因图谱。分析结果表明,参与体液反应的基因(如抗菌肽和模式识别受体)受到诱导,而细胞防御则受到抑制。此外,参与黑色化和凝块形成的基因被下调,阻碍了封装反应和伤口愈合。感染后,幼虫处于应激状态,代谢和运输功能增强。在应激反应方面,我们观察到热休克蛋白、解毒酶和过氧化物酶的变化。这些发现为我们全面了解宿主与病原体之间的关系提供了一个基因方面的知识,有助于与昆虫病原线虫进行进一步的比较研究。
{"title":"Analysis of the immune transcriptome of the invasive pest spotted wing drosophila infected by <i>Steinernema carpocapsae</i>.","authors":"A Garriga, D Toubarro, A Morton, N Simões, F García-Del-Pino","doi":"10.1017/S0007485324000543","DOIUrl":"10.1017/S0007485324000543","url":null,"abstract":"<p><p><i>Drosophila suzukii</i> is a pest of global concern due to its great impact on several crops. The entomopathogenic nematode <i>Steinernema carpocapsae</i> was highly virulent to the larvae of the fly although some immune mechanisms were triggered along the infection course. Thus, to understand the gene activation profile we performed a comparative transcriptome of <i>D. suzukii</i> larvae infected with <i>S. carpocapsae</i> and <i>Xenorhabdus nematophila</i> to map the differentially expressed genes involved in the defence response. The analysis exposed the induction of genes involved in the humoral response such as the antimicrobial peptides and pattern-recognition receptors while there was a suppression of the cellular defence. Besides, genes involved in melanisation, and clot formation were downregulated hindering the encapsulation response and wound healing. After the infection, larvae were in a stress condition with an enrichment of metabolic and transport functionalities. Concerning the stress response, we observed variations of the heat-shock proteins, detoxification, and peroxidase enzymes. These findings set a genetical comprehensive knowledge of the host-pathogen relation of <i>D. suzukii</i> challenged with <i>S. carpocapsae</i> which could support further comparative studies with entomopathogenic nematodes.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"622-630"},"PeriodicalIF":1.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142342123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lethal and sublethal concentrations spirodiclofen stress may increase the adaptation of Panonychus citri (Acari: Tetranychidae). 致死和亚致死浓度螺螨酯胁迫可能会增强柑橘盘尼丝虫(蛔虫科:Tetranychidae)的适应性。
IF 16.4 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-10-01 Epub Date: 2024-10-16 DOI: 10.1017/S0007485324000087
Hongyan Wang, Haifeng Wang, Kexin Wen, Tao Xie, Shigan Luo, Jiawei Wu, Bin Xia

Panonychus citri is one of the most destructive pests in citrus orchards, exhibiting varying degrees of tolerance to numerous insecticides, such as spirodiclofen. To effectively manage pests, this study explores the response of P. citri to spirodiclofen stress from the perspectives of life history, enzymatic parameters, and reproduction. The effects of two concentrations (LC30 and LC50) of spirodiclofen on the biological parameters of P. citri were evaluated by the life table method. The results showed that the development duration, fecundity, oviposition days, and lifespan were shortened, though the pre-oviposition period of two treatments was prolonged in comparison with the control. A significant decrease was recorded in the net reproductive rate (R0) and the mean generation time (T) for the two treatments. Nevertheless, the intrinsic rate of increase (r) and the rate of increase (λ) were not significantly affected in the LC30 treatment, whereas they declined in the LC50 treatment. The enzyme activity assay resulted in higher activities of catalase (CAT), superoxide dismutase (SOD), peroxidase (POD), and carboxylesterase (CarE), among the treatments than the control. In contrast, the treatments recorded lower cytochromeP450 (CYP450) and Glutathione S-transferase (GST) activities than the control. Furthermore, the study detected that relative mRNA expression of Vitellogenin (Vg) and Vitellogenin receptor (VgR) for two treatments were lower than the control. In summary, two concentrations of spirodiclofen inhibited progeny growth and fecundity of P. citri. Additionally, the results of this study may support further research on tolerance of P. citri in response to spirodiclofen stress.

柑橘褐飞虱是柑橘园中最具破坏性的害虫之一,对螺螨酯等多种杀虫剂表现出不同程度的耐受性。为了有效控制害虫,本研究从生活史、酶参数和繁殖等方面探讨了柑橘蓟马对螺螨酯胁迫的反应。研究采用生命表法评估了两种浓度(LC30 和 LC50)螺螨酯对柠条蓟马生物参数的影响。结果表明,与对照组相比,两种处理的发育期、受精率、产卵天数和寿命都缩短了,但产卵前期延长了。两种处理的净生殖率(R0)和平均世代时间(T)都明显下降。不过,LC30 处理的内在增长率(r)和增长率(λ)未受明显影响,而 LC50 处理则有所下降。酶活性测定结果显示,各处理的过氧化氢酶(CAT)、超氧化物歧化酶(SOD)、过氧化物酶(POD)和羧酸酯酶(CarE)的活性均高于对照组。相比之下,各处理的细胞色素 P450(CYP450)和谷胱甘肽 S 转移酶(GST)活性低于对照组。此外,研究还发现,两种处理的岩浆素(Vg)和岩浆素受体(VgR)的相对 mRNA 表达量低于对照组。总之,两种浓度的螺螨酯都能抑制柠檬蝶的后代生长和繁殖力。此外,本研究的结果还有助于进一步研究枸橘对螺螨酯胁迫的耐受性。
{"title":"Lethal and sublethal concentrations spirodiclofen stress may increase the adaptation of <i>Panonychus citri</i> (Acari: Tetranychidae).","authors":"Hongyan Wang, Haifeng Wang, Kexin Wen, Tao Xie, Shigan Luo, Jiawei Wu, Bin Xia","doi":"10.1017/S0007485324000087","DOIUrl":"10.1017/S0007485324000087","url":null,"abstract":"<p><p><i>Panonychus citri</i> is one of the most destructive pests in citrus orchards, exhibiting varying degrees of tolerance to numerous insecticides, such as spirodiclofen. To effectively manage pests, this study explores the response of <i>P. citri</i> to spirodiclofen stress from the perspectives of life history, enzymatic parameters, and reproduction. The effects of two concentrations (LC<sub>30</sub> and LC<sub>50</sub>) of spirodiclofen on the biological parameters of <i>P. citri</i> were evaluated by the life table method. The results showed that the development duration, fecundity, oviposition days, and lifespan were shortened, though the pre-oviposition period of two treatments was prolonged in comparison with the control. A significant decrease was recorded in the net reproductive rate (<i>R</i><sub>0</sub>) and the mean generation time (<i>T</i>) for the two treatments. Nevertheless, the intrinsic rate of increase (<i>r</i>) and the rate of increase (<i>λ</i>) were not significantly affected in the LC<sub>30</sub> treatment, whereas they declined in the LC<sub>50</sub> treatment. The enzyme activity assay resulted in higher activities of catalase (CAT), superoxide dismutase (SOD), peroxidase (POD), and carboxylesterase (CarE), among the treatments than the control. In contrast, the treatments recorded lower cytochromeP450 (CYP450) and Glutathione S-transferase (GST) activities than the control. Furthermore, the study detected that relative mRNA expression of Vitellogenin (Vg) and Vitellogenin receptor (VgR) for two treatments were lower than the control. In summary, two concentrations of spirodiclofen inhibited progeny growth and fecundity of <i>P. citri</i>. Additionally, the results of this study may support further research on tolerance of <i>P. citri</i> in response to spirodiclofen stress.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"591-597"},"PeriodicalIF":16.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142458591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of dietary restriction on development, mating, and reproduction in the natural predator Pardosa pseudoannulata. 食物限制对天敌 Pardosa pseudoannulata 的发育、交配和繁殖的影响。
IF 16.4 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-10-01 Epub Date: 2024-10-07 DOI: 10.1017/S0007485324000415
Xiaoming Wang, Wei Li, Li Song, Zuojun Xie, Jie Liu, Yao Zhao, Yu Peng

Dietary restriction-influenced biological performance is found in many animal species. Pardosa pseudoannulata is a dominant spider species in agricultural fields and is important for controlling pests. In this study, three groups - a control group (CK group), a re-feeding group (RF group), and a dietary restriction group (RT group) - were used to explore development, mating, reproduction, and the expression levels of Vg (vitellogenin) and VgR (vitellogenin receptor) genes in the spider. The findings indicated that when subjected to dietary restriction, the carapace size, weight of the spiderlings, and weight of the adults exhibited a decrease. Furthermore, the preoviposition period and egg stage were observed to be prolonged, while the number of spiderlings decreased. It was also observed that re-feeding reduced cannibalism rates and extended the preoviposition period. Dietary restriction also affected the expression of the Vg-3 gene in the spider. These results will contribute to the understanding of the impact of dietary restriction in predators of pest control, as well as provide a theoretical foundation for the artificial rearing and utilisation of the dominant spider in the field.

许多动物物种的生物性能都受到饮食限制的影响。伪满蛛是农田中的主要蜘蛛物种,对控制害虫非常重要。本研究采用对照组(CK 组)、再喂养组(RF 组)和饮食限制组(RT 组)三个组别,探讨了蜘蛛的发育、交配、繁殖以及 Vg(卵黄原素)和 VgR(卵黄原素受体)基因的表达水平。研究结果表明,在限制饮食的情况下,蜘蛛的体型、幼蛛体重和成蛛体重均有所下降。此外,还观察到产卵前期和卵期延长,而幼蛛数量减少。还观察到,重新喂食降低了食人率,延长了产卵前期。饮食限制也影响了蜘蛛体内 Vg-3 基因的表达。这些结果将有助于了解害虫控制天敌饮食限制的影响,并为田间人工饲养和利用优势蜘蛛提供理论基础。
{"title":"Impact of dietary restriction on development, mating, and reproduction in the natural predator <i>Pardosa pseudoannulata</i>.","authors":"Xiaoming Wang, Wei Li, Li Song, Zuojun Xie, Jie Liu, Yao Zhao, Yu Peng","doi":"10.1017/S0007485324000415","DOIUrl":"10.1017/S0007485324000415","url":null,"abstract":"<p><p>Dietary restriction-influenced biological performance is found in many animal species. <i>Pardosa pseudoannulata</i> is a dominant spider species in agricultural fields and is important for controlling pests. In this study, three groups - a control group (CK group), a re-feeding group (RF group), and a dietary restriction group (RT group) - were used to explore development, mating, reproduction, and the expression levels of <i>Vg</i> (vitellogenin) and <i>VgR</i> (vitellogenin receptor) genes in the spider. The findings indicated that when subjected to dietary restriction, the carapace size, weight of the spiderlings, and weight of the adults exhibited a decrease. Furthermore, the preoviposition period and egg stage were observed to be prolonged, while the number of spiderlings decreased. It was also observed that re-feeding reduced cannibalism rates and extended the preoviposition period. Dietary restriction also affected the expression of the <i>Vg</i>-<i>3</i> gene in the spider. These results will contribute to the understanding of the impact of dietary restriction in predators of pest control, as well as provide a theoretical foundation for the artificial rearing and utilisation of the dominant spider in the field.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"674-681"},"PeriodicalIF":16.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142380083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
How does Neoseiulus californicus McGregor respond to sublethal doses of entomopathogenic fungus Beauveria bassiana (Hyp.: Cordycipitaceae)? Neoseiulus californicus McGregor 对亚致死剂量的昆虫病原真菌 Beauveria bassiana(Hyp.)
IF 16.4 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-10-01 Epub Date: 2024-09-27 DOI: 10.1017/S0007485324000397
Katayoon Kheradmand, Mahmoud Heidari, Amin Sedaratian-Jahromi, Reza Talaei-Hassanloui, Mohammadreza Havasi

Two-spotted spider mite, Tetranychus urticae Koch (Acari: Prostigmata), is one of the most economically important mite species, mainly controlled by chemical acaricides. Natural enemies have been assessed as reliable alternatives for management of this phytophagous mite. In the current project, demographic characteristics of Neoseiulus californicus McGregor (Acari: Phytoseiidae) to sublethal concentrations (LC10 = 6.76 × 102, LC20 = 8.74 × 103 and LC30 = 55.38 × 103 conidia ml-1) of entomopathogenic fungus, Beauveria bassiana (Bals.) Vuill. TV strain were investigated under laboratory conditions at 25 ± 2°C, 70 ± 5% RH and a photoperiod of 16:8 (L:D) h. Our results indicated that when adult predators were exposed to LC20 and LC30 of B. bassiana, the oviposition period was significantly reduced compared with other treatments. Neoseiulus californicus fecundity was significantly greater in the control (37 eggs) than in LC30 (24 eggs). Life table analysis revealed that the net reproductive rate (R0) declined as the sublethal concentrations of B. bassiana increased. The most striking result to emerge from the data is that not only intrinsic (r); but also, finite rate of increase (λ) was not significantly affected by different concentrations of B. bassiana. Our findings revealed some potential interactions of B. bassiana and N. californicus during their combinations for managing T. urticae that may be helpful for optimising control of this important pest.

二斑蜘蛛螨(Tetranychus urticae Koch,Acari: Prostigmata)是经济上最重要的螨类之一,主要由化学杀螨剂控制。天敌已被评估为管理这种植食性螨虫的可靠替代品。在当前项目中,在实验室条件下研究了 Neoseiulus californicus McGregor(Acari: Phytoseiidae)对亚致死浓度(LC10 = 6.76 × 102、LC20 = 8.74 × 103 和 LC30 = 55.38 × 103 分生孢子 ml-1)昆虫病原真菌 Beauveria bassiana (Bals.) Vuill.我们的研究结果表明,当成虫天敌暴露于 B. bassiana 的 LC20 和 LC30 时,其产卵期与其他处理相比明显缩短。对照组(37 个卵)中加州鳗的繁殖率明显高于 LC30(24 个卵)。生命表分析表明,随着 B. bassiana 亚致死浓度的增加,净生殖率 (R0) 有所下降。从数据中得出的最显著结果是,不仅固有增长率(r),而且有限增长率(λ)都没有受到不同浓度 B. bassiana 的显著影响。我们的研究结果揭示了 B. bassiana 和 N. californicus 在联合防治荨麻虱过程中的一些潜在相互作用,这可能有助于优化对这一重要害虫的防治。
{"title":"How does <i>Neoseiulus californicus</i> McGregor respond to sublethal doses of entomopathogenic fungus <i>Beauveria bassiana</i> (Hyp.: Cordycipitaceae)?","authors":"Katayoon Kheradmand, Mahmoud Heidari, Amin Sedaratian-Jahromi, Reza Talaei-Hassanloui, Mohammadreza Havasi","doi":"10.1017/S0007485324000397","DOIUrl":"10.1017/S0007485324000397","url":null,"abstract":"<p><p>Two-spotted spider mite, <i>Tetranychus urticae</i> Koch (Acari: Prostigmata), is one of the most economically important mite species, mainly controlled by chemical acaricides. Natural enemies have been assessed as reliable alternatives for management of this phytophagous mite. In the current project, demographic characteristics of <i>Neoseiulus californicus</i> McGregor (Acari: Phytoseiidae) to sublethal concentrations (LC<sub>10</sub> = 6.76 × 10<sup>2</sup>, LC<sub>20</sub> = 8.74 × 10<sup>3</sup> and LC<sub>30</sub> = 55.38 × 10<sup>3</sup> conidia ml<sup>-1</sup>) of entomopathogenic fungus, <i>Beauveria bassiana</i> (Bals.) Vuill. TV strain were investigated under laboratory conditions at 25 ± 2°C, 70 ± 5% RH and a photoperiod of 16:8 (L:D) h. Our results indicated that when adult predators were exposed to LC<sub>20</sub> and LC<sub>30</sub> of <i>B. bassiana</i>, the oviposition period was significantly reduced compared with other treatments. <i>Neoseiulus californicus</i> fecundity was significantly greater in the control (37 eggs) than in LC<sub>30</sub> (24 eggs). Life table analysis revealed that the net reproductive rate (<i>R</i><sub>0</sub>) declined as the sublethal concentrations of <i>B. bassiana</i> increased. The most striking result to emerge from the data is that not only intrinsic (<i>r</i>); but also, finite rate of increase (λ) was not significantly affected by different concentrations of <i>B. bassiana</i>. Our findings revealed some potential interactions of <i>B. bassiana</i> and <i>N. californicus</i> during their combinations for managing <i>T. urticae</i> that may be helpful for optimising control of this important pest.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"598-605"},"PeriodicalIF":16.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142342126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reproductive response of the predator Tenuisvalvae notata (Mulsant) (Coleoptera: Coccinellidae) to temperatures outside their ideal thermal range. 捕食者Tenuisvalvae notata (Mulsant) (Coleoptera: Coccinellidae)对超出其理想温度范围的温度的繁殖反应。
IF 16.4 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-10-01 Epub Date: 2024-10-18 DOI: 10.1017/S0007485324000476
Enggel Beatriz S Carmo, Christian S A Silva-Torres, Jorge Braz Torres

Global warming has driven changes in the biology and fitness of organisms that need to adapt to temperatures outside of their optimal range to survive. This study investigated aspects of reproduction and survival of the lady beetle Tenuisvalvae notata (Mulsant) (Coleoptera: Coccinellidae) subjected to temperatures that varied from its optimal (28°C) to a gradual decrease (12, 14, 16, and 18°C) and increase (32, 34, 35, and 36°C) over time at a rate of 1°C/day. Fertility, fecundity, oviposition period, and survival were determined. There was a significant reduction in fertility and fecundity at temperatures below 18°C and above 34°C, whereas survival was reduced only above 34°C. Additionally, we evaluated that fecundity was the lowest when females were kept at low temperature, and when males were kept under high temperature. Therefore, if the T. notata remained for a long period under exposure to temperatures outside the ideal range, then the species could present different reproductive responses for each sex to high and low temperatures. This factor must be considered when releasing natural enemies into an area to understand the effect of temperature on the decline of a local population a few generations after release.

全球变暖导致生物的生物学特性和生存能力发生变化,它们需要适应超出其最适生存范围的温度。本研究调查了瓢虫 Tenuisvalvae notata (Mulsant)(鞘翅目:胭脂虫科)在最适温度(28°C)到以每天 1°C 的速度逐渐降低(12、14、16 和 18°C)和升高(32、34、35 和 36°C)的过程中的繁殖和存活情况。测定了繁殖力、受精率、产卵期和存活率。在温度低于18°C和高于34°C时,繁殖力和受精率明显下降,而存活率仅在高于34°C时才会下降。此外,我们还评估发现,雌性在低温条件下繁殖力最低,而雄性在高温条件下繁殖力最低。因此,如果T. notata长期处于理想温度范围之外,那么该物种的雌雄个体对高温和低温的生殖反应就会不同。在一个地区释放天敌时必须考虑这一因素,以了解温度对释放后几代当地种群数量下降的影响。
{"title":"Reproductive response of the predator <i>Tenuisvalvae notata</i> (Mulsant) (Coleoptera: Coccinellidae) to temperatures outside their ideal thermal range.","authors":"Enggel Beatriz S Carmo, Christian S A Silva-Torres, Jorge Braz Torres","doi":"10.1017/S0007485324000476","DOIUrl":"10.1017/S0007485324000476","url":null,"abstract":"<p><p>Global warming has driven changes in the biology and fitness of organisms that need to adapt to temperatures outside of their optimal range to survive. This study investigated aspects of reproduction and survival of the lady beetle <i>Tenuisvalvae notata</i> (Mulsant) (Coleoptera: Coccinellidae) subjected to temperatures that varied from its optimal (28°C) to a gradual decrease (12, 14, 16, and 18°C) and increase (32, 34, 35, and 36°C) over time at a rate of 1°C/day. Fertility, fecundity, oviposition period, and survival were determined. There was a significant reduction in fertility and fecundity at temperatures below 18°C and above 34°C, whereas survival was reduced only above 34°C. Additionally, we evaluated that fecundity was the lowest when females were kept at low temperature, and when males were kept under high temperature. Therefore, if the <i>T. notata</i> remained for a long period under exposure to temperatures outside the ideal range, then the species could present different reproductive responses for each sex to high and low temperatures. This factor must be considered when releasing natural enemies into an area to understand the effect of temperature on the decline of a local population a few generations after release.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"691-698"},"PeriodicalIF":16.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142458592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Making sense of chromosome polymorphisms in two leptysmine grasshoppers. 了解两种瘦蝗虫的染色体多态性。
IF 1.6 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-10-01 Epub Date: 2024-10-23 DOI: 10.1017/S0007485324000579
Pablo C Colombo

The touchstone of the 'New Synthesis' was population cytogenetics -rather than genetics - due to the abundant polymorphic inversions in the genus Drosophila. Grasshoppers were not a material of choice because of their conservative karyotypes. However, nowadays seven species of Acrididae were described for polymorphic centric fusions, five of them in South-America. Leptysma argentina and the likely biocontrol of water-hyacinth Cornops aquaticum are semiaquatic Leptysminae (Acrididae: Orthoptera), polymorphic for centric fusions, supernumerary segments and a B-chromosome. We sought to demonstrate the operation of natural selection on them, by detecting: (I) latitudinal clines; (II) regression on environmental variables; (III) deviation from null models, such as linkage equilibrium; (IV) seasonal variation; (V) comparison between age classes and (VI) selection component analyses. All of them were confirmed in L. argentina, just (I) and (II) in C. aquaticum. Furthermore, the relationship between karyotype, phenotype and recombination was confirmed in both species. Karyotype-phenotype relationship may be due to the body enlargement the fusions are associated with, along with a latitudinal transition in voltinism. Karyotype-related recombination reduction in both species may help explain all fusion clines, although there is probably more than one factor at work. No effects were noticed for a supernumerary segment in L. argentina, but it is ubiquitous and certainly non-neutral. C. aquaticum is poised for introduction in South-Africa as a biocontrol of water-hyacinths; the recent discovery of four more segment polymorphisms may imply more chromosomal markers to make sense of its genetic system.

新综合 "的试金石是群体细胞遗传学,而不是遗传学,因为果蝇属有大量的多态倒位。蚱蜢因其保守的核型而不是首选材料。然而,如今有 7 个蚱蜢科物种被描述为多态中心融合,其中 5 个物种位于南美洲。Leptysma argentina 和可能对水葫芦有生物防治作用的 Cornops aquaticum 是半水栖 Leptysminae(吖啶科:直翅目),具有中心融合、超数节段和 B 染色体的多态性。我们试图通过检测以下几个方面来证明自然选择对它们的作用:(I) 纬度支系;(II) 对环境变量的回归;(III) 偏离空模型,如连锁平衡;(IV) 季节性变化;(V) 年龄段之间的比较;(VI) 选择成分分析。所有这些方法都在 L. argentina 中得到了证实,只有(I)和(II)在 C. aquaticum 中得到了证实。此外,两个物种的核型、表型和重组之间的关系也得到了证实。核型与表型之间的关系可能与体型增大有关,也可能与伏氏体的纬向转变有关。这两个物种中与核型相关的重组减少可能有助于解释所有的融合支系,尽管可能有不止一个因素在起作用。在 L. argentina 中,没有发现超数片段的影响,但它无处不在,而且肯定是非中性的。C. aquaticum 准备引入南非,作为水葫芦的生物防治手段;最近又发现了四个片段多态性,这可能意味着需要更多的染色体标记来了解其遗传系统。
{"title":"Making sense of chromosome polymorphisms in two leptysmine grasshoppers.","authors":"Pablo C Colombo","doi":"10.1017/S0007485324000579","DOIUrl":"10.1017/S0007485324000579","url":null,"abstract":"<p><p>The touchstone of the 'New Synthesis' was population cytogenetics -rather than genetics - due to the abundant polymorphic inversions in the genus Drosophila. Grasshoppers were not a material of choice because of their conservative karyotypes. However, nowadays seven species of Acrididae were described for polymorphic centric fusions, five of them in South-America. <i>Leptysma argentina</i> and the likely biocontrol of water-hyacinth <i>Cornops aquaticum</i> are semiaquatic Leptysminae (Acrididae: Orthoptera), polymorphic for centric fusions, supernumerary segments and a B-chromosome. We sought to demonstrate the operation of natural selection on them, by detecting: (I) latitudinal clines; (II) regression on environmental variables; (III) deviation from null models, such as linkage equilibrium; (IV) seasonal variation; (V) comparison between age classes and (VI) selection component analyses. All of them were confirmed in <i>L. argentina</i>, just (I) and (II) in <i>C</i>. <i>aquaticum.</i> Furthermore, the relationship between karyotype, phenotype and recombination was confirmed in both species. Karyotype-phenotype relationship may be due to the body enlargement the fusions are associated with, along with a latitudinal transition in voltinism. Karyotype-related recombination reduction in both species may help explain all fusion clines, although there is probably more than one factor at work. No effects were noticed for a supernumerary segment in <i>L. argentina</i>, but it is ubiquitous and certainly non-neutral. <i>C. aquaticum</i> is poised for introduction in South-Africa as a biocontrol of water-hyacinths; the recent discovery of four more segment polymorphisms may imply more chromosomal markers to make sense of its genetic system.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"717-727"},"PeriodicalIF":1.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142495574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Parasitic behaviour and developmental morphology of Anastatus japonicus reared on the factitious host Antheraea pernyi. 在事实宿主 Antheraea pernyi 上饲养的日本鹅膏蕈(Anastatus japonicus)的寄生行为和发育形态。
IF 16.4 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-10-01 Epub Date: 2024-09-25 DOI: 10.1017/S0007485324000518
Run-Zhi Wang, Xu Chen, Talha Tariq, Rui-E Lv, Yong-Ming Chen, Lian-Sheng Zang

The egg parasitoid Anastatus japonicus is a key natural enemy in the biological control of various agricultural and forestry pests. It is particularly used against the brown marmorated stink bug Halyomorpha halys and the emerging defoliator pest Caligula japonica in East Asia. It has been proved that the eggs of Antheraea pernyi can be used as a factitious host for the mass production of A. japonicus. This study systematically documented the parasitic behaviour and developmental morphology exhibited by A. japonicus on the eggs of A. pernyi. The parasitic behaviour of A. japonicus encompassed ten steps including searching, antennation, locating, digging, probing, detecting, oviposition, host-feeding, grooming, and resting. Oviposition, in particular, was observed to occur in three stages, with the parasitoids releasing eggs during the second stage when the body remained relatively static. Among all the steps of parasitic behaviour, probing accounted for the longest time, constituting 33.1% of the whole time. It was followed by digging (19.3%), oviposition (18.5%), antennation (9.6%), detecting (7.4%), and the remaining steps, each occupying less than 5.0% of the total event time. The pre-emergence of adult A. japonicus involves four stages: egg (0 to 2nd day), larva (3rd to 9th day), pre-pupa (10th to 13th day), pupa (14th to 22nd day), and subsequent development into an adult. Typically, it takes 25.60 ± 0.30 days to develop from an egg to an adult at 25℃. This information increases the understanding of the biology of A. japonicus and may provide a reference for optimising reproductive devices.

日本虫卵寄生虫(Anastatus japonicus)是生物防治各种农业和林业害虫的重要天敌。在东亚,它尤其被用来防治褐狨蝽和新出现的落叶害虫Caligula japonica。事实证明,日本蓟马的卵可以作为大量生产日本蓟马的假宿主。本研究系统地记录了日本矢车菊对矢车菊卵的寄生行为和发育形态。日本椿的寄生行为包括搜索、触角、定位、挖掘、探测、检测、产卵、寄主取食、梳理和休息等十个步骤。尤其是产卵,观察到寄生虫的产卵过程分为三个阶段,在身体相对静止的第二阶段释放卵。在寄生行为的所有步骤中,探测时间最长,占整个时间的 33.1%。其次是挖掘(19.3%)、产卵(18.5%)、触角(9.6%)、探测(7.4%),其余各步骤所占时间均小于总事件时间的 5.0%。日本椿象成虫的萌发前期包括四个阶段:卵(0 至第 2 天)、幼虫(第 3 至第 9 天)、前蛹(第 10 至第 13 天)、蛹(第 14 至第 22 天)以及随后发育成成虫。一般来说,在 25℃条件下,从卵发育成成虫需要 25.60 ± 0.30 天。这些信息加深了对日本蛙生物学特性的了解,可为优化繁殖装置提供参考。
{"title":"Parasitic behaviour and developmental morphology of <i>Anastatus japonicus</i> reared on the factitious host <i>Antheraea pernyi</i>.","authors":"Run-Zhi Wang, Xu Chen, Talha Tariq, Rui-E Lv, Yong-Ming Chen, Lian-Sheng Zang","doi":"10.1017/S0007485324000518","DOIUrl":"10.1017/S0007485324000518","url":null,"abstract":"<p><p>The egg parasitoid <i>Anastatus japonicus</i> is a key natural enemy in the biological control of various agricultural and forestry pests. It is particularly used against the brown marmorated stink bug <i>Halyomorpha halys</i> and the emerging defoliator pest <i>Caligula japonica</i> in East Asia. It has been proved that the eggs of <i>Antheraea pernyi</i> can be used as a factitious host for the mass production of <i>A. japonicus</i>. This study systematically documented the parasitic behaviour and developmental morphology exhibited by <i>A. japonicus</i> on the eggs of <i>A. pernyi</i>. The parasitic behaviour of <i>A. japonicus</i> encompassed ten steps including searching, antennation, locating, digging, probing, detecting, oviposition, host-feeding, grooming, and resting. Oviposition, in particular, was observed to occur in three stages, with the parasitoids releasing eggs during the second stage when the body remained relatively static. Among all the steps of parasitic behaviour, probing accounted for the longest time, constituting 33.1% of the whole time. It was followed by digging (19.3%), oviposition (18.5%), antennation (9.6%), detecting (7.4%), and the remaining steps, each occupying less than 5.0% of the total event time. The pre-emergence of adult <i>A. japonicus</i> involves four stages: egg (0 to 2nd day), larva (3rd to 9th day), pre-pupa (10th to 13th day), pupa (14th to 22nd day), and subsequent development into an adult. Typically, it takes 25.60 ± 0.30 days to develop from an egg to an adult at 25℃. This information increases the understanding of the biology of <i>A. japonicus</i> and may provide a reference for optimising reproductive devices.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"663-673"},"PeriodicalIF":16.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142342127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Predicting the geographical potential distribution of species Opisina arenosella Walker in China under different climate scenarios based on the MaxEnt model. 基于MaxEnt模型预测不同气候情景下中国鹅掌楸Opisina arenosella Walker物种的地理分布潜力。
IF 16.4 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-10-01 Epub Date: 2024-10-02 DOI: 10.1017/S0007485324000464
Zhiling Wang, Zhihang Zhuo, Yaqin Peng, Danping Xu

As global warming increases with the frequency of extreme weather, the distribution of species is inevitably affected. Among them, highly damaging invasive species are of particular concern. Being able to effectively predict the geographic distribution of invasive species and future distribution trends is a key entry point for their control. Opisina arenosella Walker is an invasive species, and its ability to live on the backs of foliage and generate canals to hide adds to the difficulty of control. In this paper, the current and future distributions of O. arenosella under three typical emission scenarios in 2050 and 2090 are projected based on the MaxEnt model combining 19 bioclimatic variables. Filter through the variables to find the four key environment variables: BIO 1, BIO 6, BIO 11 and BIO 4. The results show that O. arenosella is distributed only in the eight provinces of Tibet, Yunnan, Fujian, Guangxi, Taiwan, Guangdong, Hong Kong and Hainan in the southeastern region. Its high suitability area is concentrated in Taiwan and Hainan. In the long run, highly suitable areas will continue to increase in size, while moderately suitable areas and poorly suitable areas will decrease to varying degrees. This paper aims to provide theoretical references for the control of O. arenosella.

随着全球变暖和极端天气发生频率的增加,物种的分布不可避免地受到影响。其中,破坏性极强的入侵物种尤其令人担忧。能够有效预测入侵物种的地理分布和未来分布趋势,是控制入侵物种的关键切入点。沃克(Opisina arenosella Walker)是一种入侵物种,它能生活在树叶背面,并能产生水渠来隐藏,这增加了控制的难度。本文基于 MaxEnt 模型,结合 19 个生物气候变量,预测了在 2050 年和 2090 年三种典型排放情景下,Opisina arenosella 目前和未来的分布情况。通过筛选变量,找出四个关键环境变量:BIO 1、BIO 6、BIO 11 和 BIO 4。结果表明,O. arenosella 只分布在东南地区的西藏、云南、福建、广西、台湾、广东、香港和海南八省区。其高度适宜区主要集中在台湾和海南。从长远来看,高适宜区的面积将不断扩大,而中适宜区和低适宜区的面积将有不同程度的减少。本文旨在为防治鹅掌楸提供理论参考。
{"title":"Predicting the geographical potential distribution of species <i>Opisina arenosella</i> Walker in China under different climate scenarios based on the MaxEnt model.","authors":"Zhiling Wang, Zhihang Zhuo, Yaqin Peng, Danping Xu","doi":"10.1017/S0007485324000464","DOIUrl":"10.1017/S0007485324000464","url":null,"abstract":"<p><p>As global warming increases with the frequency of extreme weather, the distribution of species is inevitably affected. Among them, highly damaging invasive species are of particular concern. Being able to effectively predict the geographic distribution of invasive species and future distribution trends is a key entry point for their control. <i>Opisina arenosella</i> Walker is an invasive species, and its ability to live on the backs of foliage and generate canals to hide adds to the difficulty of control. In this paper, the current and future distributions of <i>O. arenosella</i> under three typical emission scenarios in 2050 and 2090 are projected based on the MaxEnt model combining 19 bioclimatic variables. Filter through the variables to find the four key environment variables: BIO 1, BIO 6, BIO 11 and BIO 4. The results show that <i>O. arenosella</i> is distributed only in the eight provinces of Tibet, Yunnan, Fujian, Guangxi, Taiwan, Guangdong, Hong Kong and Hainan in the southeastern region. Its high suitability area is concentrated in Taiwan and Hainan. In the long run, highly suitable areas will continue to increase in size, while moderately suitable areas and poorly suitable areas will decrease to varying degrees. This paper aims to provide theoretical references for the control of <i>O. arenosella</i>.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"682-690"},"PeriodicalIF":16.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142361124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Temperature and relative humidity mediated life processes of Spodoptera species (Lepidoptera: Noctuidae). 温度和相对湿度介导的鞘翅目物种(鳞翅目:夜蛾科)的生命过程。
IF 1.6 3区 农林科学 Q2 ENTOMOLOGY Pub Date : 2024-10-01 Epub Date: 2024-09-30 DOI: 10.1017/S000748532400035X
Rameswor Maharjan, Seoyeon Hong, Youngnam Yoon, Yunwoo Jang, Kido Park

Anthropogenic-mediated climate change is expected to negatively affect pest management in agriculture. Hence, we investigated the oviposition, immature mortality, and developmental processes of Spodoptera species (Spodoptera exigua (Hübner) and Spodoptera litura (Fabricius)) under different temperatures (20, 25, and 30°C) and relative humidity (RH) (30-35, 50-55, 70-75, and 90-95%) conditions. For fecundity, mouths of each Spodoptera species were released into a rectangular box whose inner walls were covered with a sheet of white paper for each combination of temperature and RH. The mouths were kept inside the box to deposit eggs for 72 h. Temperature and RH significantly affected the fecundity, with the maximum number of eggs laid in 70-75% at 30°C. The highest egg and larval mortalities were recorded in 30-35 and 90-95% RH, respectively. Temperature and RH greatly affected the developmental period (egg-adult) and adult emergence rate. The rapid development was recorded in 70-75% RH at 30°C. Higher number of adults was found with an increase in temperature and RH. Adult longevity was significantly higher in 70-75% RH at 20°C. Based on the present study's findings, temperature and RH had an individual apparent effect on the developmental processes of Spodoptera species instead of an interactive effect. Therefore, there is need for an in-depth study of the influence of several climatic factors, including CO2, on the developmental modality and demographic changes of Spodoptera species to assess the impacts of climatic components and the sustainable development of management strategies.

人类活动引起的气候变化预计将对农业害虫管理产生负面影响。因此,我们研究了不同温度(20、25 和 30°C)和相对湿度(30-35%、50-55%、70-75% 和 90-95%)条件下鞘翅目昆虫(Spodoptera exigua (Hübner) 和 Spodoptera litura (Fabricius))的产卵、未成熟死亡和发育过程。在不同的温度和相对湿度条件下,将每种鞘翅目昆虫的口放入一个内壁覆盖有白纸的长方形盒子中。温度和相对湿度对繁殖力有显著影响,在 30°C 时,70%-75% 的产卵量最高。在 30-35 和 90-95% 相对湿度条件下,卵和幼虫死亡率最高。温度和相对湿度对发育期(卵-成虫)和成虫出现率影响很大。在温度为 30℃、相对湿度为 70-75% 的条件下,卵的发育速度最快。成虫数量随着温度和相对湿度的增加而增加。在 20°C 条件下,70-75% 相对湿度下的成虫寿命明显较长。根据本研究的结果,温度和相对湿度对鞘翅目昆虫的发育过程有明显的个体影响,而不是交互影响。因此,有必要深入研究包括二氧化碳在内的多种气候因子对鞘翅目昆虫发育模式和种群变化的影响,以评估气候因素的影响和管理策略的可持续发展。
{"title":"Temperature and relative humidity mediated life processes of <i>Spodoptera</i> species (Lepidoptera: Noctuidae).","authors":"Rameswor Maharjan, Seoyeon Hong, Youngnam Yoon, Yunwoo Jang, Kido Park","doi":"10.1017/S000748532400035X","DOIUrl":"https://doi.org/10.1017/S000748532400035X","url":null,"abstract":"<p><p>Anthropogenic-mediated climate change is expected to negatively affect pest management in agriculture. Hence, we investigated the oviposition, immature mortality, and developmental processes of <i>Spodoptera</i> species (<i>Spodoptera exigua</i> (Hübner) and <i>Spodoptera litura</i> (Fabricius)) under different temperatures (20, 25, and 30°C) and relative humidity (RH) (30-35, 50-55, 70-75, and 90-95%) conditions. For fecundity, mouths of each <i>Spodoptera</i> species were released into a rectangular box whose inner walls were covered with a sheet of white paper for each combination of temperature and RH. The mouths were kept inside the box to deposit eggs for 72 h. Temperature and RH significantly affected the fecundity, with the maximum number of eggs laid in 70-75% at 30°C. The highest egg and larval mortalities were recorded in 30-35 and 90-95% RH, respectively. Temperature and RH greatly affected the developmental period (egg-adult) and adult emergence rate. The rapid development was recorded in 70-75% RH at 30°C. Higher number of adults was found with an increase in temperature and RH. Adult longevity was significantly higher in 70-75% RH at 20°C. Based on the present study's findings, temperature and RH had an individual apparent effect on the developmental processes of <i>Spodoptera</i> species instead of an interactive effect. Therefore, there is need for an in-depth study of the influence of several climatic factors, including CO<sub>2</sub>, on the developmental modality and demographic changes of <i>Spodoptera</i> species to assess the impacts of climatic components and the sustainable development of management strategies.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":"114 5","pages":"606-612"},"PeriodicalIF":1.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Bulletin of Entomological Research
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1