Pub Date : 2024-11-15DOI: 10.1016/j.aspen.2024.102332
Roya Ahmadpour , Hooshang Rafiee Dastjerdi , Ali Golizadeh , Aziz Habibi Yangjeh , Zahra Abedi , Vahid Mahdavi
Nanoformulation of imidacloprid was prepared using the biocompatible polymer of polyethylene glycol (PEG). TEM image showed that the spherical nanoparticles were 50–150 nm. The lethal concntrationof 30 percent (LC30) and 50 percent (LC50) of the insecticide and its nanoformulation studied on adult female aphids were 21.46 and 58.56 mg a.i./L for pure insecticide, and 3.79 and 4.94 mg a.i./L for nanoformulated insecticide, respectively. The results of the sublethal effect test (LC30) of this insecticide showed that nymphal developmental in nanoimidacloprid (5.55 days) was higher than control (4.22 days). The results showed that the insecticide treatments significantly reduced the demographic characteristics of Schizaphis graminum. The intrinsic rates of increase (r) values of aphids in control, insecticide treatment and its nanoformulation were 0.421, 0.315 and 0.29, respectively. The results of evaluating the effect of the studied insecticide on the specific activity of beta-esterase and glutathione S-transferase showed that there was no significant difference in the activity of this enzymes between the control and the insecticide treatment and its nanoformulation. Based on the obtained results, it can be concluded that after conducting additional tests, the insecticide nanoformulation can be used due to its effectiveness in lower concentrations in the management of sucking pests such as aphids.
{"title":"Nanoformulation of imidacloprid insecticide with biocompatible materials and its ecological and physiological effects on wheat green aphid, Schizaphis graminum Rondani","authors":"Roya Ahmadpour , Hooshang Rafiee Dastjerdi , Ali Golizadeh , Aziz Habibi Yangjeh , Zahra Abedi , Vahid Mahdavi","doi":"10.1016/j.aspen.2024.102332","DOIUrl":"10.1016/j.aspen.2024.102332","url":null,"abstract":"<div><div>Nanoformulation of imidacloprid was prepared using the biocompatible polymer of polyethylene glycol (PEG). TEM image showed that the spherical nanoparticles were 50–150 nm. The lethal concntrationof 30 percent (LC<sub>30</sub>) and 50 percent (LC<sub>50</sub>) of the insecticide and its nanoformulation studied on adult female aphids were 21.46 and 58.56 mg a.i./L for pure insecticide, and 3.79 and 4.94 mg a.i./L for nanoformulated insecticide, respectively. The results of the sublethal effect test (LC<sub>30</sub>) of this insecticide showed that nymphal developmental in nanoimidacloprid (5.55 days) was higher than control (4.22 days). The results showed that the insecticide treatments significantly reduced the demographic characteristics of <em>Schizaphis graminum.</em> The intrinsic rates of increase (<em>r</em>) values of aphids in control, insecticide treatment and its nanoformulation were 0.421, 0.315 and 0.29, respectively. The results of evaluating the effect of the studied insecticide on the specific activity of beta-esterase and glutathione S-transferase showed that there was no significant difference in the activity of this enzymes between the control and the insecticide treatment and its nanoformulation. Based on the obtained results, it can be concluded that after conducting additional tests, the insecticide nanoformulation can be used due to its effectiveness in lower concentrations in the management of sucking pests such as aphids.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102332"},"PeriodicalIF":1.1,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655928","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}
Pub Date : 2024-11-14DOI: 10.1016/j.aspen.2024.102339
Xiao-Li Wang , Li Han , Ying Zhang , Li-Qing Duan
The multicapsid nucleopolyhedrovirus of Lymantria dispar (Lepidoptera: Lymantriidae) (LdMNPV) is a baculovirus capable of causing viral epizootics. LdMNPV must disintegrate in the alkaline midgut, releasing virions that pass through the peritrophic matrix and infect midgut columnar cells. Ingested material has the potential to influence early stages of infection. Host plant induced resistence lead to the increase of phenolic acid and may influence the activity of LdMNPV. In order to evaluate the lethal and sublethal effects of phenolic acids on the spongy moth larvae infected with LdMNPV, artificial diets containing or not containing chlorogenic acid (CH), tannic acid (TA), salicylic acid (SA) and syringic acid (SY) were used to rear the spongy moth larvae inoculated with 92 OBs/μL LdMNPV. The results turned out the lethal effect caused by SYV (SY + LdMNPV) was high. SY played a synergistic effect on LdMNPV against spongy moth larvae assessed by CTF (co-toxicity factor). SA and TA showed an antagonistic effect and CH showed additive effects. Larvae treated by CH, CHV, TA or TAV suffered long duration of the 3rd and the 4th instar and no one survive to the 5th instar stage, inferring that CH and TA inhibited the development of spongy moth larvae. SY, SA, SYV and SAV caused remarkable sublethal effect on spongy moth survivor. Fecundity of the survivor decresed and egg hatching rates were significantly reduced. The hatching rate of SYV was only 46.4 %, about half of CK. Assessing from both the lethal and sublethal effect, SY may be a potential synergist of LdMNPV against spongy moth larvae, improving prevention and control effectiveness of LdMNPV in spongy moth management.
{"title":"Influence of phenolic acids on the lethal and sublethal effects of LdMNPV against spongy moth larvae, Lymantria dispar (Lepidoptera: Lymantriidae)","authors":"Xiao-Li Wang , Li Han , Ying Zhang , Li-Qing Duan","doi":"10.1016/j.aspen.2024.102339","DOIUrl":"10.1016/j.aspen.2024.102339","url":null,"abstract":"<div><div>The multicapsid nucleopolyhedrovirus of <em>Lymantria dispar</em> (Lepidoptera: Lymantriidae) (LdMNPV) is a baculovirus capable of causing viral epizootics. LdMNPV must disintegrate in the alkaline midgut, releasing virions that pass through the peritrophic matrix and infect midgut columnar cells. Ingested material has the potential to influence early stages of infection. Host plant induced resistence lead to the increase of phenolic acid and may influence the activity of LdMNPV. In order to evaluate the lethal and sublethal effects of phenolic acids on the spongy moth larvae infected with LdMNPV, artificial diets containing or not containing chlorogenic acid (CH), tannic acid (TA), salicylic acid (SA) and syringic acid (SY) were used to rear the spongy moth larvae inoculated with 92 OBs/μL LdMNPV. The results turned out the lethal effect caused by SYV (SY + LdMNPV) was high. SY played a synergistic effect on LdMNPV against spongy moth larvae assessed by CTF (co-toxicity factor). SA and TA showed an antagonistic effect and CH showed additive effects. Larvae treated by CH, CHV, TA or TAV suffered long duration of the 3rd and the 4th instar and no one survive to the 5th instar stage, inferring that CH and TA inhibited the development of spongy moth larvae. SY, SA, SYV and SAV caused remarkable sublethal effect on spongy moth survivor. Fecundity of the survivor decresed and egg hatching rates were significantly reduced. The hatching rate of SYV was only 46.4 %, about half of CK. Assessing from both the lethal and sublethal effect, SY may be a potential synergist of LdMNPV against spongy moth larvae, improving prevention and control effectiveness of LdMNPV in spongy moth management.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102339"},"PeriodicalIF":1.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656296","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}
Pub Date : 2024-11-09DOI: 10.1016/j.aspen.2024.102336
Benshui Shu , Cuiting Liu , Yuting Huang , Yanzheng Lin , Yanhong Zeng , Shaoqin Li , Jian Zeng , Jintian Lin , Jingjing Zhang
The fall armyworm, Spodoptera frugiperda, is a highly polyphagous agricultural pest widely distributed around the world and causes severe crop yield loss. As a common phenomenon in many insects, cannibalism is also observed in the larvae of S. frugiperda. While the factors that affect this phenomenon in S. frugipreda larvae remain unclear and not quite systematic. In this study, the effects of three factors, including a lack of food supply, different host plants, and variation in food distribution, on the cannibalism of larvae from the third, fourth, and fifth instars of S. frugipreda were investigated. Our results suggest that a longer time without food supply, a non-preferred host plant, and simple food distribution could increase cannibalism. Our results not only provide critical information for the mass rearing of S. frugiperda larvae, but also offer preliminary support for further study on the mechanism of cannibalism in this pest.
{"title":"Cannibalism in Spodoptera frugiperda larvae: Effects of food lack, host plants, and food distribution","authors":"Benshui Shu , Cuiting Liu , Yuting Huang , Yanzheng Lin , Yanhong Zeng , Shaoqin Li , Jian Zeng , Jintian Lin , Jingjing Zhang","doi":"10.1016/j.aspen.2024.102336","DOIUrl":"10.1016/j.aspen.2024.102336","url":null,"abstract":"<div><div>The fall armyworm, Spodoptera frugiperda, is a highly polyphagous agricultural pest widely distributed around the world and causes severe crop yield loss. As a common phenomenon in many insects, cannibalism is also observed in the larvae of S. frugiperda. While the factors that affect this phenomenon in <em>S. frugipreda</em> larvae remain unclear and not quite systematic. In this study, the effects of three factors, including a lack of food supply, different host plants, and variation in food distribution, on the cannibalism of larvae from the third, fourth, and fifth instars of <em>S. frugipreda</em> were investigated. Our results suggest that a longer time without food supply, a non-preferred host plant, and simple food distribution could increase cannibalism. Our results not only provide critical information for the mass rearing of <em>S. frugiperda</em> larvae, but also offer preliminary support for further study on the mechanism of cannibalism in this pest.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102336"},"PeriodicalIF":1.1,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656295","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}
The cacophony protein is a key component of honey bee biology that has been investigated concerning hygienic behavior. The voltage-gated calcium channel subunit α1 appears to play a significant role in modulating neuronal activity associated with the detection and response to compromised brood within honey bee colonies. Despite its essential role, the molecular mechanisms underpinning hygienic behavior remain incompletely understood. Recent research suggests that the expression of the cacophony protein is linked to the efficiency of hygienic behavior, where colonies with enhanced hygienic behavior exhibit distinct patterns of cacophony expression. Understanding the role of cacophony in honey bee behavior provides insights into the molecular mechanisms underlying social interactions within bee colonies, with implications for enhancing pollination services and mitigating threats to honey bee populations. Therefore, the present study focused on unraveling and characterizing its structure and function, using bioinformatics approaches involving sequence and phylogenetic analysis. Homology modeling developed three-dimensional models of cacophony protein for Apis cerana and A. mellifera. Molecular docking studies were performed for various brood pheromones and volatiles, triggering hygienic behavior in honey bees, against cacophony protein providing computational insights into their molecular interactions. Binding free energy calculations using MM/PBSA and MM/GBSA consistently demonstrate a higher affinity of γ-octalactone for AcerCAC protein (−21.77 ± 3.01 kcal/mol and −24.81 ± 4.07 kcal/mol respectively) compared to AmelCAC protein (−20.03 ± 3.01 kcal/mol and −21.47 ± 3.19 kcal/mol respectively). This study lays a theoretical foundation for further studies regarding the mechanism of interaction of cacophony with hygienic behavior.
{"title":"Molecular dynamics exploration of cacophony protein interactions with brood volatiles in honey bee colonies","authors":"Ramkumar Haran , Ettiappan Sumathi , Chakkarai Sathyaseelan , Mannu Jayakanthan , Ganeshan Shandeep , Sundaravadivel Sathiya Priya , Eswaran Kokiladevi , V.P. Krithika","doi":"10.1016/j.aspen.2024.102338","DOIUrl":"10.1016/j.aspen.2024.102338","url":null,"abstract":"<div><div>The cacophony protein is a key component of honey bee biology that has been investigated concerning hygienic behavior. The voltage-gated calcium channel subunit α1 appears to play a significant role in modulating neuronal activity associated with the detection and response to compromised brood within honey bee colonies. Despite its essential role, the molecular mechanisms underpinning hygienic behavior remain incompletely understood. Recent research suggests that the expression of the cacophony protein is linked to the efficiency of hygienic behavior, where colonies with enhanced hygienic behavior exhibit distinct patterns of cacophony expression. Understanding the role of cacophony in honey bee behavior provides insights into the molecular mechanisms underlying social interactions within bee colonies, with implications for enhancing pollination services and mitigating threats to honey bee populations. Therefore, the present study focused on unraveling and characterizing its structure and function, using bioinformatics approaches involving sequence and phylogenetic analysis. Homology modeling developed three-dimensional models of cacophony protein for <em>Apis cerana</em> and <em>A. mellifera</em>. Molecular docking studies were performed for various brood pheromones and volatiles, triggering hygienic behavior in honey bees, against cacophony protein providing computational insights into their molecular interactions. Binding free energy calculations using MM/PBSA and MM/GBSA consistently demonstrate a higher affinity of γ-octalactone for AcerCAC protein (−21.77 ± 3.01 kcal/mol and −24.81 ± 4.07 kcal/mol respectively) compared to AmelCAC protein (−20.03 ± 3.01 kcal/mol and −21.47 ± 3.19 kcal/mol respectively). This study lays a theoretical foundation for further studies regarding the mechanism of interaction of<!--> <!-->cacophony with hygienic behavior.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102338"},"PeriodicalIF":1.1,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656297","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}
Pub Date : 2024-11-07DOI: 10.1016/j.aspen.2024.102337
Xiqian Guo , Chao Tian , Xiaoxia Zhang , Tingting Mao , Qilong Shu , Yuanfei Wang , Jialu Cheng , Fanchi Li , Bing Li
Bombyx mori (Lepidoptera: Bombycidae) is an oligophagous lepidoptera insect that primarily feeds on mulberry leaves. The feeding performance of “artificial feed rearing of young silkworm combined with mulberry leaves rearing of grown silkworm” was significantly higher than that of silkworms reared on artificial diets across all instars. Following prolonged indoor domestication, B. mori exhibits heightened sensitivity to chemical pesticides. To investigate the metabolic detoxification response characteristics during nutritional compensation, mulberry leaves were treated with trace chlorantraniliprole (0.01 mg/L) for the 5th instar larvae, which had been reared on artificial diet during the 1st - 4th instars. Upon transitioning from artificial diet to mulberry leaves, the growth rate was significantly increased, reaching 147.49 % within 24 h. Additionally, the activities of protease and lipase in digestive fluid were markedly enhanced. The triglyceride content increased by 18.15 % in hemolymph and by 27.26 % in the fat body at 72 h. Conversely, the levels of free amino acids in hemolymph and trehalose in the fat body significantly decreased. At 24 h, the expression levels of PI3K, AKT, and INR were up-regulated 3.682, 3.160, and 6.027 folds, as well as CYP4M5, CYP6AB4, GSTe3, and CarE2 were up-regulated 3.972, 2.816, 3.890, and 2.660 folds at 120 h, respectively. With trace chlorantraniliprole treatment, the upregulation of growth genes was prioritized. In contrast, the upregulation of detoxification genes was delayed, demonstrating a consistent trend in detoxification enzyme activity following gene expression. This study provides a momentous reference for elucidating the interaction between nutritional and detoxification metabolism in B. mori.
{"title":"Research on the metabolic detoxification of trace chlorantraniliprole in Bombyx mori (Lepidoptera: Bombycidae) fed with artificial diet based on nutritional compensation","authors":"Xiqian Guo , Chao Tian , Xiaoxia Zhang , Tingting Mao , Qilong Shu , Yuanfei Wang , Jialu Cheng , Fanchi Li , Bing Li","doi":"10.1016/j.aspen.2024.102337","DOIUrl":"10.1016/j.aspen.2024.102337","url":null,"abstract":"<div><div><em>Bombyx mori</em> (Lepidoptera: Bombycidae) is an oligophagous lepidoptera insect that primarily feeds on mulberry leaves. The feeding performance of “artificial feed rearing of young silkworm combined with mulberry leaves rearing of grown silkworm” was significantly higher than that of silkworms reared on artificial diets across all instars. Following prolonged indoor domestication, <em>B. mori</em> exhibits heightened sensitivity to chemical pesticides. To investigate the metabolic detoxification response characteristics during nutritional compensation, mulberry leaves were treated with trace chlorantraniliprole (0.01 mg/L) for the 5<sup>th</sup> instar larvae, which had been reared on artificial diet during the 1<sup>st</sup> - 4<sup>th</sup> instars. Upon transitioning from artificial diet to mulberry leaves, the growth rate was significantly increased, reaching 147.49 % within 24 h. Additionally, the activities of protease and lipase in digestive fluid were markedly enhanced. The triglyceride content increased by 18.15 % in hemolymph and by 27.26 % in the fat body at 72 h. Conversely, the levels of free amino acids in hemolymph and trehalose in the fat body significantly decreased. At 24 h, the expression levels of <em>PI3K, AKT,</em> and <em>INR</em> were up-regulated 3.682, 3.160, and 6.027 folds, as well as <em>CYP4M5, CYP6AB4, GSTe3,</em> and <em>CarE2</em> were up-regulated 3.972, 2.816, 3.890, and 2.660 folds at 120 h, respectively. With trace chlorantraniliprole treatment, the upregulation of growth genes was prioritized. In contrast, the upregulation of detoxification genes was delayed, demonstrating a consistent trend in detoxification enzyme activity following gene expression. This study provides a momentous reference for elucidating the interaction between nutritional and detoxification metabolism in <em>B. mori</em>.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102337"},"PeriodicalIF":1.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656299","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}
Pub Date : 2024-11-05DOI: 10.1016/j.aspen.2024.102335
Debborah Gonçalves Bezerra , Gabriel Modesto Beghelli , Karina Cordeiro Albernaz-Godinho , Cecília Czepak , Edemilson Cardoso da Conceição , Ivano Alessandro Devilla , Joelma Abadia Marciano de Paula
The development of bioinsecticides as an alternative to synthetic insecticides can benefit the economy of exporting and importing countries, family farming, production of high-quality commodities, food security, quality of life, and the natural environment. This study aimed to evaluate the effect of microencapsulated extracts of Azadirachta indica A. Juss on Spodoptera frugiperda J.E. Smith and their persistence in the plant under semi-field conditions. The fresh seeds of A. indica, collected in Brazil, were separated for the preparation of the microencapsulated dry extract (MDE) according to criteria registered in the patent. Lethal concentrations for S. frugiperda were determined using a dose response curve. The treatments were compared: MDE, control and positive control based on azadirachtin, evaluating mortality and growth inhibition. There was a significant difference in mortality between the treatments tested. The lethal concentrations LC50 and LC95, expressed in azadirachtin for the bioinsecticide, were 194.98 and 630.95 ppm, respectively. The growth inhibition of S. frugiperda was above 98 % in the treatments, except for the control. The MDE presented lethal times LT50 and LT90 lower than the other treatments (lethal time LT50 = 2.79 d; lethal time LT90 = 3.97 d). The MDE of A. indica seeds was effective in controlling S. frugiperda up to the fifth instar and is considered as slightly persistent to persistent depending on environmental conditions and irrigation, based on IOBC/WPRS parameters. The MDE has the potential to be a phytosanitary product approved for use in organic agriculture and with greater effectiveness in controlling S. frugiperda compared to similar pesticides.
Abbreviations: BOD, Biochemical Oxygen Demand; CPA, commercial product based on azadirachtin; CLE, concentrated liquid extract; DAS, days after spraying; GI, growth inhibition; LC50, lethal concentration for 50% of the population; LC95, lethal concentration for 95% of the population; LT50, lethal time for 50% of the population; LT90, lethal time for 90% of the population; MDE, microencapsulated dry extract.
{"title":"Effect of microencapsulated/photoresistant extract of Azadirachta indica A. Juss seeds on Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctudae) and its persistence in semi-field","authors":"Debborah Gonçalves Bezerra , Gabriel Modesto Beghelli , Karina Cordeiro Albernaz-Godinho , Cecília Czepak , Edemilson Cardoso da Conceição , Ivano Alessandro Devilla , Joelma Abadia Marciano de Paula","doi":"10.1016/j.aspen.2024.102335","DOIUrl":"10.1016/j.aspen.2024.102335","url":null,"abstract":"<div><div>The development of bioinsecticides as an alternative to synthetic insecticides can benefit the economy of exporting and importing countries, family farming, production of high-quality commodities, food security, quality of life, and the natural environment. This study aimed to evaluate the effect of microencapsulated extracts of <em>Azadirachta indica</em> A. Juss on <em>Spodoptera frugiperda</em> J.E. Smith and their persistence in the plant under semi-field conditions. The fresh seeds of <em>A. indica</em>, collected in Brazil, were separated for the preparation of the microencapsulated dry extract (MDE) according to criteria registered in the patent. Lethal concentrations for <em>S. frugiperda</em> were determined using a dose response curve. The treatments were compared: MDE, control and positive control based on azadirachtin, evaluating mortality and growth inhibition. There was a significant difference in mortality between the treatments tested. The lethal concentrations LC<sub>50</sub> and LC<sub>95</sub>, expressed in azadirachtin for the bioinsecticide, were 194.98 and 630.95 ppm, respectively. The growth inhibition of <em>S. frugiperda</em> was above 98 % in the treatments, except for the control. The MDE presented lethal times LT<sub>50</sub> and LT<sub>90</sub> lower than the other treatments (lethal time LT<sub>50</sub> = 2.79 d; lethal time LT<sub>90</sub> = 3.97 d). The MDE of <em>A. indica</em> seeds was effective in controlling <em>S. frugiperda</em> up to the fifth instar and is considered as slightly persistent to persistent depending on environmental conditions and irrigation, based on IOBC/WPRS parameters. The MDE has the potential to be a phytosanitary product approved for use in organic agriculture and with greater effectiveness in controlling <em>S. frugiperda</em> compared to similar pesticides.</div><div>Abbreviations: BOD, Biochemical Oxygen Demand; CPA, commercial product based on azadirachtin; CLE, concentrated liquid extract; DAS, days after spraying; GI, growth inhibition; LC<sub>50</sub>, lethal concentration for 50% of the population; LC<sub>95</sub>, lethal concentration for 95% of the population; LT<sub>50</sub>, lethal time for 50% of the population; LT<sub>90</sub>, lethal time for 90% of the population; MDE, microencapsulated dry extract.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102335"},"PeriodicalIF":1.1,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656298","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}
Pub Date : 2024-11-02DOI: 10.1016/j.aspen.2024.102333
Oliver Rodríguez-Aguilar , Jose Lopez-Collado , Mónica de la Cruz Vargas-Mendoza , Alejandra Soto-Estrada , Clemente de Jesús García-Ávila
Climate change is increasing the presence of suitable areas for some agricultural pests. Research has therefore focused on evaluating the impact of climate change on their potential distribution. The objective of this paper was to estimate and contrast the present and future potential distribution of the citrus pests Brevipalpus yothersi and Brevipalpus californicus under climate change scenarios SSP245 and SSP585 for the years 2050 and 2070, worldwide, using eight general circulation models (GCMs). The distribution models were generated with MaxEnt, using georeferenced data of species presence and uncorrelated bioclimatic variables. When considering the union of the areas predicted by the GCMs, there is an increase in suitable areas for the two species relative to the present suitability. The highest increase in suitable area was estimated for B. yothersi. The regions that presented the best conditions for the two Citrus leprosis virus vectors were located in America, Africa, and Australia.
{"title":"Climate change effects on the worldwide distribution of Brevipalpus californicus and Brevipalpus yothersi","authors":"Oliver Rodríguez-Aguilar , Jose Lopez-Collado , Mónica de la Cruz Vargas-Mendoza , Alejandra Soto-Estrada , Clemente de Jesús García-Ávila","doi":"10.1016/j.aspen.2024.102333","DOIUrl":"10.1016/j.aspen.2024.102333","url":null,"abstract":"<div><div>Climate change is increasing the presence of suitable areas for some agricultural pests. Research has therefore focused on evaluating the impact of climate change on their potential distribution. The objective of this paper was to estimate and contrast the present and future potential distribution of the citrus pests <em>Brevipalpus yothersi</em> and <em>Brevipalpus californicus</em> under climate change scenarios SSP245 and SSP585 for the years 2050 and 2070, worldwide, using eight general circulation models (GCMs). The distribution models were generated with MaxEnt, using georeferenced data of species presence and uncorrelated bioclimatic variables. When considering the union of the areas predicted by the GCMs, there is an increase in suitable areas for the two species relative to the present suitability. The highest increase in suitable area was estimated for <em>B. yothersi.</em> The regions that presented the best conditions for the two <em>Citrus leprosis virus</em> vectors were located in America, Africa, and Australia<em>.</em></div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102333"},"PeriodicalIF":1.1,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592539","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}
Pub Date : 2024-11-02DOI: 10.1016/j.aspen.2024.102334
Phong Huy Pham , Mai Ut Pham , Sim Thi Hong Mai , Thanh Trung Hoang
The biology of the potter wasp Delta esuriens (Fabricius) is studied in Vietnam. The eumenine built its mud nests in numerous sites, usually in shaded locations. The nest consisted of 1–8 pot-shaped cells and was sometimes covered with a lay of mud after it was provisioned completely. The egg was laid before provisioning. The female stored 3–10 caterpillars of Noctuidae, Geometridae, Pieridae, and Plutellidae per nest cell, and left nest cells open during egg-laying and provisioning. The developmental time from the egg to the emergence of the adult wasp was 20–30 days under laboratory conditions. Mating of D. esuriens was taken place at flowers of Bidens pilosa L. and Celosia cristata L., usually in the morning. The male seized a female, grasped her pronotum with his forelegs and quickly copulated with her for 4–10 s. Delta esuriens overwintered as prepupae and occurred in the wild for about eight months a year. The sex ratio was 1.17. The developmental mortality ratio was 25 % under laboratory conditions and 54.4 % under natural conditions. Chrysis dissimilis Dahlbom, Chrysis sp., Trichrysis lusca (Fabricius), Melittobia sosui Dahms, two Sarcophagidae satellite flies, and small red ants were predators of the eumenine. This study provides a better understanding of the biology and ecology of D. esuriens, can be used to aid in studies of phylogeny and evolution of the nesting behaviour in Delta, and can help in developing measures to exploit this potter wasp in the biocontrol of insect pests in vegetable crops.
{"title":"Biology of the potter wasp Delta esuriens (Fabricius, 1787) (Hymenoptera: Vespidae: Eumeninae) with details on its nesting and mating behaviours, development, and ecology","authors":"Phong Huy Pham , Mai Ut Pham , Sim Thi Hong Mai , Thanh Trung Hoang","doi":"10.1016/j.aspen.2024.102334","DOIUrl":"10.1016/j.aspen.2024.102334","url":null,"abstract":"<div><div>The biology of the potter wasp <em>Delta esuriens</em> (Fabricius) is studied in Vietnam. The eumenine built its mud nests in numerous sites, usually in shaded locations. The nest consisted of 1–8 pot-shaped cells and was sometimes covered with a lay of mud after it was provisioned completely. The egg was laid before provisioning. The female stored 3–10 caterpillars of Noctuidae, Geometridae, Pieridae, and Plutellidae per nest cell, and left nest cells open during egg-laying and provisioning. The developmental time from the egg to the emergence of the adult wasp was 20–30 days under laboratory conditions. Mating of <em>D. esuriens</em> was taken place at flowers of <em>Bidens pilosa</em> L. and <em>Celosia cristata</em> L.<em>,</em> usually in the morning. The male seized a female, grasped her pronotum with his forelegs and quickly copulated with her for 4–10 s. <em>Delta esuriens</em> overwintered as prepupae and occurred in the wild for about eight months a year. The sex ratio was 1.17. The developmental mortality ratio was 25 % under laboratory conditions and 54.4 % under natural conditions. <em>Chrysis dissimilis</em> Dahlbom, <em>Chrysis</em> sp., <em>Trichrysis lusca</em> (Fabricius), <em>Melittobia sosui</em> Dahms, two Sarcophagidae satellite flies, and small red ants were predators of the eumenine. This study provides a better understanding of the biology and ecology of <em>D. esuriens,</em> can be used to aid in studies of phylogeny and evolution of the nesting behaviour in <em>Delta,</em> and can help in developing measures to exploit this potter wasp in the biocontrol of insect pests in vegetable crops.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102334"},"PeriodicalIF":1.1,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587271","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}
Pub Date : 2024-10-28DOI: 10.1016/j.aspen.2024.102331
Shubhadeep Biswas , Krishna Karmakar
Two new mite species Amblydromalus mahasagaricus Karmakar & Biswas sp. nov. and Euseius jalika Karmakar & Biswas sp. nov. belonging to the family Phytoseiidae (Acari: Mesostigmata), are described, and Proprioseiopsis nemotoi Ehara & Amano, 1998, recorded for the first time from India, is redescribed based on specimens collected from vegetation of Andaman and Nicobar Islands. Amblyseius dahliae Karmakar, Bhowmik & Sherpa, 2017; Euseius tripuraensis Kar & Karmakar, 2022 and Neoseiulus pranadae Karmakar & Gupta, 2014 are reported for the first time from Andaman and Nicobar Islands.
{"title":"Two new species of phytoseiid mites (Mesostigmata: Acari) from Andaman and Nicobar Islands with complementary description of Proprioseiopsis nemotoi Ehara & Amano, 1998","authors":"Shubhadeep Biswas , Krishna Karmakar","doi":"10.1016/j.aspen.2024.102331","DOIUrl":"10.1016/j.aspen.2024.102331","url":null,"abstract":"<div><div>Two new mite species <em>Amblydromalus mahasagaricus</em> Karmakar & Biswas sp. nov. and <em>Euseius jalika</em> Karmakar & Biswas sp. nov. belonging to the family Phytoseiidae (Acari: Mesostigmata), are described, and <em>Proprioseiopsis nemotoi</em> Ehara & Amano, 1998, recorded for the first time from India, is redescribed based on specimens collected from vegetation of Andaman and Nicobar Islands. <em>Amblyseius dahliae</em> Karmakar, Bhowmik & Sherpa, 2017; <em>Euseius tripuraensis</em> Kar & Karmakar, 2022 and <em>Neoseiulus pranadae</em> Karmakar & Gupta, 2014 are reported for the first time from Andaman and Nicobar Islands.</div><div>Zoobank registration number: <span><span>www.zoobank.org/urn:lsid:zoobank.org:pub:BD671B1A-4A51-41C0-8718-55C9F68C36AC</span><svg><path></path></svg></span>.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102331"},"PeriodicalIF":1.1,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656294","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}
Pub Date : 2024-10-24DOI: 10.1016/j.aspen.2024.102328
Mingzhen Zhao , Lulu Dai , Shaoyong Zhang
One of the insects that cause the most damage to Moso bamboos in the southern regions of China is Hippotiscus dorsalis (Hemiptera: Pentatomidae). However, the study of molecular and growth development analysis is limited because its genetic resources are still in the blank stage. In order to improve our knowledge of the molecular traits of this insect pest, we first generated the transcriptome from H dorsalis using PacBio Iso-Seq. With an average length of 1495 bp, 207,663 nonredundant full-length reads were produced. Using five databases, we annotated 36,238 transcripts: Uniprot (24,388), GO (1160), NR (24,110), Pfam (9333), and KEGG (14,497). According to aligning of each transcript in the NR database, most of them (85.147 %) were annotated into the functional genes from Halyomorpha halys. In the meantime, we discovered 33,689 long noncoding RNAs (lncRNAs), 4408 transcription factors (TFs), and 586 alternative splicing (AS) events, which involved in transcriptional regulation. Additionally, the candidate cathepsin genes from the bamboo pest were examined in order to comprehend how they adapted to their host. To sum up, our findings offer a fresh resource for comprehensive transcriptional data and insights into the genetics and gene expression of H dorsalis.
{"title":"Identification and phylogenetic of cysteine peptidase genes from the bamboo pest Hippotiscus dorsalis, based on RNA-seq and PacBio Iso-Seq","authors":"Mingzhen Zhao , Lulu Dai , Shaoyong Zhang","doi":"10.1016/j.aspen.2024.102328","DOIUrl":"10.1016/j.aspen.2024.102328","url":null,"abstract":"<div><div>One of the insects that cause the most damage to Moso bamboos in the southern regions of China is <em>Hippotiscus dorsalis</em> (Hemiptera: Pentatomidae). However, the study of molecular and growth development analysis is limited because its genetic resources are still in the blank stage. In order to improve our knowledge of the molecular traits of this insect pest, we first generated the transcriptome from <em>H dorsalis</em> using PacBio Iso-Seq. With an average length of 1495 bp, 207,663 nonredundant full-length reads were produced. Using five databases, we annotated 36,238 transcripts: Uniprot (24,388), GO (1160), NR (24,110), Pfam (9333), and KEGG (14,497). According to aligning of each transcript in the NR database, most of them (85.147 %) were annotated into the functional genes from <em>Halyomorpha halys</em>. In the meantime, we discovered 33,689 long noncoding RNAs (lncRNAs), 4408 transcription factors (TFs), and 586 alternative splicing (AS) events, which involved in transcriptional regulation. Additionally, the candidate cathepsin genes from the bamboo pest were examined in order to comprehend how they adapted to their host. To sum up, our findings offer a fresh resource for comprehensive transcriptional data and insights into the genetics and gene expression of <em>H dorsalis</em>.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102328"},"PeriodicalIF":1.1,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535141","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}
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