Pest Management Science最新文献_第2页

Selective leaf surface defenses: trichomes trap herbivorous leafminers but spare parasitoid wasps. 选择性叶表面防御：毛状体捕获草食性叶螨，但不捕杀寄生蜂。

IF 4.1 1区农林科学 Q1 AGRONOMY

Pest Management Science

Pub Date : 2026-01-15 DOI: 10.1002/ps.70523

Yuta Ohata,Yuhko Sawada,Yuki Ishihara,Yohsuke Tagami

BACKGROUNDLeafminers [e.g., Liriomyza trifolii (Burgess), L. sativae (Blanchard), and Chromatomyia horticola (Goureau)] are globally significant agricultural pests, while their parasitoid wasps [e.g., Hemiptarsenus varicornis (Girault) and Neochrysocharis formosa (Westhood)] are key agents in biological control programs. Although trichomes are known to act as physical defenses against herbivores, their potential for selective entrapment-targeting pests while sparing natural enemies-has remained underexplored. This study aimed to evaluate whether kidney bean (Phaseolus vulgaris L.) leaf trichomes exert species-specific physical effects on leafminers and their parasitoids.RESULTSLaboratory assays showed that 30-40% of adult leafminers became entangled and died on the abaxial surface of primary leaves. In contrast, only 1.6-3.3% of parasitoid wasps were similarly affected. Scanning electron microscopy revealed that hook-shaped non-glandular trichomes effectively trapped leafminer legs, ovipositors, and mouthparts, regardless of sex or age. In contrast, parasitoids avoided entrapment, consistent with their markedly thinner legs and smaller body size. Removal of trichomes drastically reduced leafminer attachment but did not reduce and increase parasitoid parasitism efficiency.CONCLUSIONKidney bean plants exhibit a selective physical trapping mechanism that disproportionately affects herbivorous pests while sparing their parasitoid natural enemies. This species-specific interaction, governed by trichome morphology and insect body structure, provides an example of a plant defense trait that is compatible with biological control. These findings highlight the potential for leveraging natural plant defenses to enhance the selectivity and ecological compatibility of integrated pest management programs. © 2026 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

背景：叶螨（Liriomyza trifolii, Burgess）、L. sativae （Blanchard）和coloromyia horticola （Goureau))是全球重要的农业害虫，而它们的寄生蜂（Hemiptarsenus varicornis, Girault）和Neochrysocharis formosa (Westhood)）是生物防治计划的关键因素。虽然众所周知，毛状体可以作为对抗食草动物的物理防御，但它们选择性诱捕的潜力——瞄准害虫而不伤害天敌——仍未得到充分的探索。本研究旨在探讨芸豆（Phaseolus vulgaris L.）叶片毛状体是否对叶虫及其寄生蜂具有种特异性的物理效应。结果30 ~ 40%的成叶螨在初生叶背面缠绕死亡。相比之下，只有1.6-3.3%的拟寄生蜂受到类似的影响。扫描电子显微镜显示，无论性别或年龄，钩状的非腺状毛状体都能有效地捕获叶螨的腿、产卵器和口器。相比之下，寄生蜂避免被诱捕，这与它们明显更细的腿和更小的体型一致。去除毛状体可显著降低叶螨的附着，但不会降低和提高寄生蜂的寄生效率。结论芸豆植物具有选择性物理诱捕机制，对草食性害虫的诱捕不成比例，对寄生性天敌的诱捕不成比例。这种由毛状体形态和昆虫身体结构控制的物种特异性相互作用，提供了与生物控制相容的植物防御特性的一个例子。这些发现强调了利用天然植物防御来提高害虫综合治理方案的选择性和生态兼容性的潜力。©2026作者。由John Wiley & Sons Ltd代表化学工业协会出版的《害虫管理科学》。

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引用次数: 0

Can cultural practices such as UV-C flashes or nitrogen diet increase VOCs emitted by basil and improve aphid control? UV-C闪光灯或氮饮食等文化实践是否会增加罗勒散发的挥发性有机化合物并改善蚜虫控制？

IF 4.1 1区农林科学 Q1 AGRONOMY

Pest Management Science

Pub Date : 2026-01-15 DOI: 10.1002/ps.70452

Louna Rizzi,Pierre-Jules Berrou,Kenia Quinzoni,Gabin Mardoc,Arnaud Da Rocha,Guy Costagliola,Hélène Gautier

BACKGROUNDIn the context of reducing pesticide use, companion plants (CPs) are a promising method for aphid control, but their effectiveness in field conditions remains inconsistent. This study tested whether applying nitrogen (N) restriction and/or UV-C flashes to basil could enhance its emission of volatile organic compounds (VOCs) and improve its efficacy against Dysaphis plantaginea (Passerini) and Myzus persicae (Sulzer).RESULTSA 14-day N restriction significantly increased basil terpene emissions, disrupted D. plantaginea feeding behaviour, and reduced aphid fecundity in both species. UV-C flashes also transiently boosted VOC emissions 24 h after and slightly affected reproduction. However, combining both treatments had no additive effect.CONCLUSIONLowering N supply appears to be the most effective strategy to increase basil VOCs. Further research should assess its potential when applied simultaneously to companion and host plants in order to improve aphid control. © 2026 Society of Chemical Industry.

背景在减少农药使用的背景下，伴生植物（CPs）是一种很有前途的防治蚜虫的方法，但其在田间条件下的有效性仍不一致。本研究考察了对罗勒施加限氮和/或UV-C照射是否能增加其挥发性有机化合物（VOCs）的排放，提高其对车前草Dysaphis plantaginea （Passerini）和桃蚜（Myzus persicae (Sulzer)）的防治效果。结果限氮14 d显著增加了罗勒萜类化合物的排放，破坏了车前草的取食行为，降低了两种蚜虫的繁殖力。UV-C闪光也会在24小时后短暂地增加VOC的排放，并轻微影响生殖。然而，两种治疗联合使用无叠加效应。结论降低氮素供给是提高罗勒挥发性有机化合物含量的最有效措施。进一步的研究应评估其同时应用于伴生植物和寄主植物的潜力，以改善蚜虫的控制。©2026化学工业协会。

引用次数: 0

Nanoemulsion design of Cynara cardunculus leaves extract rich in sesquiterpene lactones. 富倍半萜内酯山铁莲叶提取物的纳米乳设计。

IF 4.1 1区农林科学 Q1 AGRONOMY

Pest Management Science

Pub Date : 2026-01-15 DOI: 10.1002/ps.70541

Daniela Rosa,Carlos Rial,Miguel Palma,Francisco J Rodríguez-Mejías,Rosa M Varela,Francisco A Macías,Maria F Duarte

BACKGROUNDA Cynara cardunculus leaf extract enriched in sesquiterpene lactones (CcLERSLs) exhibited strong phytotoxic activity, notably inhibiting weed root growth. However, the poor water solubility limits practical application. This study aimed to develop and optimize an oil-in-water nanoemulsion containing CcLERSLs, using grape seed oil as carrier, and pectin and Tween®80 as emulsifiers. Ultrasound-assisted emulsification and response surface methodology were applied to optimize droplet size, stability and bioavailability. Phytotoxicity and storage stability were evaluated.RESULTSModels for droplet size and zeta-potential identified ultrasound amplitude and Tween®80 content as significant variables, respectively. Model validation confirmed high predictive accuracy, particularly for droplet size, and this guided the formulation of the CcLERSLs nanoemulsion (5% w/w GSO, 4% Tween® 80, 1% pectin, 80% ultrasound amplitude). Phytotoxicity against Portulaca oleracea, Plantago lanceolata and Phalaris arundinacea showed a ≥3-fold increase in activity compared with the crude extract, particularly for root inhibition. P. oleracea was the most sensitive and the nanoemulsion outperformed the commercial herbicide at 400-800 ppm. The nanoemulsion remained physically stable at 4 and 25 °C for 90 days but degraded significantly at 45° C.CONCLUSIONSNanoemulsion formulation enhances bioavailability of the CcLERSLs and significantly improves its phytotoxic activity, supporting its potential as a promising natural herbicide. © 2026 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

背景：含倍半萜内酯（CcLERSLs）的山竹叶提取物具有较强的植物毒性，对杂草根系生长具有明显的抑制作用。然而，水溶性差限制了实际应用。本研究以葡萄籽油为载体，果胶和Tween®80为乳化剂，制备并优化含CcLERSLs的水包油纳米乳。采用超声辅助乳化和响应面法优化微滴大小、稳定性和生物利用度。评价了植物毒性和贮藏稳定性。结果液滴大小和ζ电位模型分别确定超声振幅和Tween®80含量为显著变量。模型验证证实了较高的预测准确性，特别是对液滴大小的预测，这指导了CcLERSLs纳米乳的配方（5% w/w GSO, 4% Tween®80,1%果胶，80%超声振幅）。对马齿苋、车前草和马齿苋的植物毒性活性比粗提物提高了3倍以上，特别是对根的抑制作用。在400 ~ 800 ppm的浓度下，纳米乳剂的效果优于商用除草剂。纳米乳在4℃和25℃下保持90天的物理稳定，但在45℃下降解明显。结论纳米乳制剂提高了CcLERSLs的生物利用度，显著提高了其植物毒性活性，具有作为天然除草剂的潜力。©2026作者。由John Wiley & Sons Ltd代表化学工业协会出版的《害虫管理科学》。

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引用次数: 0

Spray-induced gene silencing as a novel strategy for managing dollar spot in creeping bentgrass caused by Clarireedia jacksonii. 喷雾剂诱导的基因沉默作为控制杰克逊克拉瑞氏菌引起的匍匐弯草斑疹的新策略。

IF 4.1 1区农林科学 Q1 AGRONOMY

Pest Management Science

Pub Date : 2026-01-15 DOI: 10.1002/ps.70519

Sooho Lim,Hosung Jeon,Woojin Kim,Minlee Kim,Hokyoung Son

BACKGROUNDClarireedia jacksonii, the causal agent of dollar spot, is a major turfgrass pathogen for which sustainable management options remain limited by intensive fungicide use and resistance. Creeping bentgrass (Agrostis stolonifera L.), widely used on golf greens and other fine turf applications, is particularly vulnerable, highlighting the need for alternative, eco-friendly solutions. Here, we evaluate spray-induced gene silencing (SIGS) as a novel disease control strategy using an in planta dsRNA screening approach.RESULTSThirty-two double-stranded RNAs (dsRNAs) targeting candidate genes were screened. Eight targets significantly reduced disease severity by approximately 34.7-45.5% relative to the control, with dsRNA targeting the microbial opsin homolog cop1 identified as the most effective target. Cy5-labeled dsRNA imaging following nuclease treatment demonstrated exogenous dsRNA uptake by C. jacksonii. Detection of target-specific siRNAs and significant reductions in transcript levels confirmed active RNA interference (RNAi) in C. jacksonii. Notably, the screen distinguished effective targets from genes silenced in vitro but not affecting disease in planta. Furthermore, fragments of dsRNA-cop1 (222-777 bp) provided statistically equivalent suppression, indicating design flexibility.CONCLUSIONThis study validates SIGS as a viable strategy for dollar spot management, provides mechanistic evidence of dsRNA uptake and processing in C. jacksonii, and offers practical insights and foundational molecular data to support the development of sustainable, RNAi-based biopesticides. © 2026 Society of Chemical Industry.

jacksonclarireedia是造成美元斑病的主要病原体，是草坪草的一种主要病原体，其可持续管理选择仍然受到大量使用杀菌剂和耐药性的限制。匍匐弯草（Agrostis stolonifera L.）广泛应用于高尔夫球场和其他优质草坪，特别容易受到伤害，因此需要替代的、环保的解决方案。在这里，我们利用植物dsRNA筛选方法评估喷雾诱导的基因沉默（SIGS）作为一种新的疾病控制策略。结果筛选到32个靶向候选基因的双链rna （dsRNAs）。与对照组相比，8个靶点显著降低了疾病严重程度约34.7-45.5%，其中针对微生物视蛋白同源物cop1的dsRNA被认为是最有效的靶点。核酸酶处理后，cy5标记的dsRNA成像显示杰克逊氏杆菌摄取外源性dsRNA。目标特异性sirna的检测和转录水平的显著降低证实了杰克逊线虫的活性RNA干扰（RNAi）。值得注意的是，该筛选从体外沉默但不影响植物疾病的基因中区分出有效靶点。此外，dsRNA-cop1片段（222-777 bp）具有统计上等效的抑制作用，表明设计的灵活性。结论本研究验证了SIGS是一种可行的美元现货管理策略，提供了杰克逊镰刀虫吸收和加工dsRNA的机制证据，并为开发可持续的、基于rnai的生物农药提供了实践见解和基础分子数据。©2026化学工业协会。

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引用次数: 0

Allo-genome-induced chromosomal abnormalities of progeny reduces transgene flow risk from glufosinate-resistant Brassica napus to wild Brassica juncea. 异基因诱导的后代染色体异常降低了从抗草铵膦甘蓝型油菜到野生芥菜的转基因流动风险。

IF 4.1 1区农林科学 Q1 AGRONOMY

Pest Management Science

Pub Date : 2026-01-15 DOI: 10.1002/ps.70533

Zicheng Shao,Lingling Dai,Lei Huang,Hewei Li,Sheng Qiang,Xiaoling Song

BACKGROUNDHerbicide-resistant (HR) oilseed rape (Brassica napus, AACC, 2n = 38) is the potential for transgenes to spread to its wild relative, Brassica juncea (AABB, 2n = 36). Previous research identified gene silencing in these progenies, observing plants that carried the HR gene PAT but did not express it normally (silenced, or r-s plants).RESULTWe found that r-s plants exhibited more stable inheritance compared to plants normally expressing PAT (expressed, or r-e, plants). Chromosome numbers in backcross progenies of r-s plants were consistently around 2n = 36. Specifically, r-s plants self-pollinated by r-e plants also showed chromosome numbers concentrated around 2n = 36, whereas in the r-e plants self-pollinated by r-e plants displayed numbers concentrated around 2n = 37. The meiotic indices of r-s plants exceeded 90%, further indicating their superior genetic stability compared with r-e plants. Despite these differences in genetic stability, r-s plants and r-e plants showed similar fitness. As the number of self-pollinated generations increased, the fitness of succeeding progeny gradually approached that of wild B. juncea.CONCLUSIONIntegrating the transgene onto the C-chromosome, which exhibits low genetic stability, holds significant promise for reducing the gene flow risk associated with HR crops. © 2026 Society of Chemical Industry.

背景抗除草剂（HR）油菜（Brassica napus， AACC, 2n = 38）的转基因有可能传播给其野生亲缘种芥菜（Brassica juncea， AABB, 2n = 36）。先前的研究在这些后代中发现了基因沉默，观察了携带HR基因PAT但不正常表达的植物（沉默或r-s植物）。结果与正常表达PAT的植物（表达r-e的植物）相比，r-s植物表现出更稳定的遗传。r-s植株回交后代的染色体数一致在2n = 36左右。其中，由r-e植株自花授粉的r-s植株的染色体数也集中在2n = 36附近，而由r-e植株自花授粉的r-e植株的染色体数集中在2n = 37附近。r-s植株减数分裂指数超过90%，进一步表明其遗传稳定性优于r-e植株。尽管遗传稳定性存在差异，但r-s植株和r-e植株表现出相似的适应性。随着自花授粉世代数的增加，后代的适合度逐渐接近野生芥菜。结论将该转基因整合到遗传稳定性较低的c染色体上，有望降低HR作物相关的基因流动风险。©2026化学工业协会。

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引用次数: 0

Erratum to “Silencing of the plant-derived horizontally transferred gene BtSC5DL effectively controls Bemisia tabaci MED” 对植物源水平转移基因BtSC5DL的沉默有效控制烟粉虱MED的更正

IF 4.1 1区农林科学 Q1 AGRONOMY

Pest Management Science

Pub Date : 2026-01-14 DOI: 10.1002/ps.70565

Liu, Y, Gong, C, Hu, Y, Han, H, Tian, T, Luo, Y, et al., Silencing of the plant-derived horizontally transferred gene BtSC5DL effectively controls Bemisia tabaci MED. Pest Manag Sci 81: 2759–2768 (2025). https://doi.org/10.1002/ps.8638.

Due to a production error during the publication process, the funding information in the ACKNOWLEDGEMENTS section of the original article was incomplete, and the grant numbers were inadvertently omitted. The correct ACKNOWLEDGEMENTS should read as follows:

“This work was supported by the National Key R&D Program of China (2021YFD1400600), the National Natural Science Foundation of China (32221004), the Earmarked Fund for CARS (CARS-23), the Central Public-Interest Scientific Institution Basal Research Fund (Y2023XK15; Y2024XK01), the Beijing Key Laboratory for Pest Control and Sustainable Cultivation of Vegetables, and the Science and the Agricultural Science and Technology Innovation Program (CAAS-ASTIP-IVFCAAS).”

We apologize for this error.

刘艳，龚超，胡艳，韩华，田婷，罗艳，等。植物源水平转移基因BtSC5DL的沉默对烟粉虱的有效防治。中国有害生物防治，31(5):2759-2768（2025）。由于在发表过程中出现生产错误，原始文章的致谢部分中的资助信息不完整，并且无意中省略了资助号。正确的致谢应如下：“本工作得到了国家重点研发计划（2021YFD1400600）、国家自然科学基金（32221004）、car - car专项基金（CARS-23）、中央公益性科研机构基础研究基金(Y2023XK15；Y2024XK01)，北京市蔬菜有害生物防治与可持续栽培重点实验室，中国科学院农业科技创新计划（CAAS-ASTIP-IVFCAAS）。我们为这个错误道歉。

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引用次数: 0

Function of the ABA receptor agonist AMF4 in combination with pymetrozine for controlling Nilaparvata lugens in rice. ABA受体激动剂AMF4与吡蚜酮联合防治水稻褐飞虱的作用。

IF 4.1 1区农林科学 Q1 AGRONOMY

Pest Management Science

Pub Date : 2026-01-14 DOI: 10.1002/ps.70534

Xinyan Liang,Guangrong Liao,Hepeng Huang,Jitong Li,Xin Zhou,Qian Yu,Wenyan Fan,Hao Liu,Lin Chen,Yiping Wang,Jinglan Liu

BACKGROUNDAbscisic acid (ABA), a major hormone in plants, plays a crucial role in regulating plant resistance to abiotic and biotic stresses. Unfortunately, the instability of ABA limits its application in agriculture, prompting research into ABA receptor agonists. The ABA mimic-fluorine derivative 4 (AMF4), a fluorine derivative of ABA mimic 1, is more stable and exhibits enhanced binding affinity for pyrabactin resistance 1-like (PYR/PYL) receptors compared with ABA.RESULTSAt low concentrations, AMF4 had no effect on rice germination but slightly promoted seeding growth. AMF4 was more effective than ABA in reducing adult fecundity and nymph survival rates of brown planthopper (BPH, Nilaparvata lugens) and in increasing callose deposition in rice stems. The synergistic ratio of AMF4 to pymetrozine against BPH was 1:120. The efficacy of the AMF4/pymetrozine mixture was validated for BPH control, and the underlying mechanisms for inducing resistance against BPH were investigated. The results indicated that using the AMF4/pymetrozine mixture enhanced thousand-grain weight and total yield.CONCLUSIONSOverall, these findings demonstrate that AMF4 significantly enhances rice resistance to BPH, and offers significant potential for eco-friendly BPH management in rice fields. These results are relevant to the escalating issue of insecticide resistance in BPH and provide valuable insights into developing environmentally friendly pest management strategies. © 2026 Society of Chemical Industry.

脱落酸（ABA）是植物体内的一种重要激素，在调节植物对非生物和生物胁迫的抗性中起着至关重要的作用。不幸的是，ABA的不稳定性限制了其在农业上的应用，促使了对ABA受体激动剂的研究。ABA模拟物-氟衍生物4 （AMF4）是ABA模拟物1的氟衍生物，与ABA相比，它更稳定，对PYR/PYL受体具有更强的结合亲和力。结果低浓度时，AMF4对水稻萌发无影响，但对种子生长有轻微促进作用。AMF4在降低褐飞虱成虫繁殖力和若虫存活率以及增加水稻茎部胼胝质沉积方面比ABA更有效。AMF4与吡蚜酮对BPH的增效比为1:20 0。验证了AMF4/吡蚜酮混合物对BPH的防治效果，并探讨了诱导BPH抗性的潜在机制。结果表明，使用AMF4/吡蚜酮混合物可提高水稻千粒重和总产量。综上所示，AMF4可显著增强水稻对BPH的抗性，为稻田BPH的生态管理提供了重要的潜力。这些结果与BPH中不断升级的杀虫剂抗性问题有关，并为制定环境友好型害虫管理策略提供了有价值的见解。©2026化学工业协会。

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引用次数: 0

Correction to "Bacterial volatiles from aphid honeydew mediate ladybird beetles oviposition site choice". 更正“蚜虫蜜露细菌挥发物介导瓢虫产卵地点选择”。

IF 4.1 1区农林科学 Q1 AGRONOMY

Pest Management Science

Pub Date : 2026-01-14 DOI: 10.1002/ps.70564

引用次数: 0

Dynamics of spray deposition pattern with UAV-based herbicide application for effective weed management in sugarcane crop. 无人机除草剂喷洒沉降模式对甘蔗杂草有效治理的动态影响。

IF 4.1 1区农林科学 Q1 AGRONOMY

Pest Management Science

Pub Date : 2026-01-14 DOI: 10.1002/ps.70539

Rajesh U Modi,Mrunalini Kancheti,Ved P Singh,Akhilesh K Singh,Mrityunjai K Singh,Rasappa Viswanathan,Dinesh Singh

BACKGROUNDSugarcane productivity is severely constrained by weeds, which reduce yield by 12.0-83.0%, impair crop quality, and harbour pests and diseases. This study was designed to analyze the dynamics of spray deposition pattern of a UAV-based herbicide spraying system for efficient weed management in sugarcane compared to manual knapsack sprayer as a control. The experiment was conducted using a split-plot design with two herbicide combinations as main plots, and evaluating three UAV flight speed and three heights of spray application as sub-plots with three replications.RESULTSUAV flight height, flight speed and droplet size significantly influence spray deposition pattern. Optimal conditions for herbicide application were UAV flight speed of 3.0 m s-1 and a flight height of 1.0 m above the crop canopy using halosulfuron methyl + metribuzin. The spray deposition parameters included a coverage range of 15.9-17.1%, droplet density of 45.4-46.4 droplets cm-2, number median diameter and volume median diameter of 107.6-109.7 μm and 273.7-276.0 μm, respectively, resulting in a spray drift potential indicator of <15.0%. Transformed data indicated that weed density ranged from 10.5 to 11.9 plants m-2 with weed dry matter between 4.9 and 5.4 g m-2.CONCLUSIONUnder optimized conditions, UAV-based spraying achieved 80.2% weed control efficiency compared to the unweeded plot and was on at par with the control. The UAV-based spraying system operated with a field capacity of 2.6 ha h-1 and incurred a cost of operation of US$4.37 ha-1, with water savings of 89.0% and reduced operational cost of 81.6% compared to control. UAV-based spraying thus provides an efficient, economical and sustainable weed management strategy in sugarcane cultivation. © 2026 Society of Chemical Industry.

甘蔗生产受到杂草的严重制约，其产量降低12.0% ~ 83.0%，影响作物品质，并孳生病虫害。本研究旨在分析无人机除草剂喷洒系统与手动背负式喷雾器在甘蔗高效杂草管理中的喷雾沉降动态。试验采用两种除草剂组合为主样地的分割样地设计，以3个重复评价3个无人机飞行速度和3个喷洒高度为次样地。结果飞行器飞行高度、飞行速度和液滴大小对喷雾沉积模式有显著影响。最佳施肥条件为无人机飞行速度3.0 m s-1，飞行高度1.0 m，使用甲基氟磺隆+甲霉嗪。喷雾沉积参数覆盖范围为15.9 ~ 17.1%，雾滴密度为45.4 ~ 46.4滴cm-2，数量中值直径为107.6 ~ 109.7 μm，体积中值直径为273.7 ~ 276.0 μm，喷雾漂移势指标<15.0%。转化后的数据表明，杂草密度在10.5 ~ 11.9株m-2之间，干物质在4.9 ~ 5.4 g m-2之间。结论在优化条件下，无人机喷施防杂草效率为未除草畦的80.2%，与对照持平。基于无人机的喷洒系统的现场作业能力为2.6 ha- h-1，作业成本为4.37美元ha-1，与对照相比，节水89.0%，作业成本降低81.6%。因此，基于无人机的喷洒为甘蔗种植提供了一种高效、经济和可持续的杂草管理策略。©2026化学工业协会。

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引用次数: 0

Effects of bioinsecticide exposure route on aphids and their natural enemies in oilseed rape. 生物杀虫剂暴露途径对油菜蚜虫及其天敌的影响。

IF 4.1 1区农林科学 Q1 AGRONOMY

Pest Management Science

Pub Date : 2026-01-13 DOI: 10.1002/ps.70518

Aimee J Tonks,Tom W Pope,Simon Cooper,Joe M Roberts

BACKGROUNDMyzus persicae Sulzer and Brevicoryne brassicae L. are economically important aphid pests of oilseed rape (OSR) and the primary vectors of turnip yellows virus. Control options are constrained for many aphid pests due to pest resistance to synthetic chemical insecticide active ingredients or their withdrawal from market. Physically acting bioinsecticides may offer an alternative control option, yet their efficacy against aphids and compatibility with natural enemies outside of horticultural production systems is poorly understood. Three bioinsecticides based on fatty acids, silicone polymers or surfactants were tested against two economically important aphid species and non-target effects on their natural enemies, Diaeretiella rapae M'Intosh adults and mummies as well as Chrysoperla carnea Stephens larvae, were also assessed.RESULTSUnder direct exposure, fatty acids, silicone polymers and surfactants all caused aphid mortality (B. brassicae 90-56%, M. persicae 63-20%) within 72 h. Diaeretiella rapae mortality was 100% 24 h after exposure to fatty acids and silicone polymers while Chyrsoperla carnea mortality was 66% and 100%, respectively. Residual exposure caused limited mortality in aphids (M. persicae 0%, B. brassicae ≤10%) and natural enemies (D. rapae ≤33%, C. carnea ≤13%) compared to the sulfoxaflor synthetic chemical insecticide control (66-100%).CONCLUSIONFatty acids and silicone polymers significantly reduced numbers of aphids but showed acute toxicity to parasitoids under direct exposure. Their lack of residual activity means that precise targeted application to pest populations is required but allows natural enemy populations to recolonise treated areas rapidly. These bioinsecticides may provide supplementary control within OSR integrated pest management programmes when applied strategically. © 2026 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

背景桃蚜（myzus persicae Sulzer）和芸苔蚜（Brevicoryne brassicae L.）是油菜（OSR）重要的经济害虫，也是萝卜黄病毒的主要传播媒介。由于害虫对合成化学杀虫剂有效成分产生抗药性或其已退出市场，许多蚜虫的防治选择受到限制。物理作用的生物杀虫剂可能提供另一种控制选择，但其对蚜虫的功效以及与园艺生产系统以外的天敌的相容性尚不清楚。以脂肪酸、有机硅聚合物和表面活性剂为主要成分的3种生物杀虫剂对2种经济上重要的蚜虫进行了防效试验，并对其天敌油菜Diaeretiella rapae M'Intosh成虫和干尸以及Chrysoperla carnea Stephens幼虫的防效进行了评价。结果脂肪酸、有机硅聚合物和表面活性剂均能在72 h内引起蚜虫死亡（芸苔螨90 ~ 56%，桃蚜63 ~ 20%）。暴露于脂肪酸和有机硅聚合物后24 h，油菜Diaeretiella rapetiella死亡率为100%，而暴露于有机硅聚合物后24 h，油菜Chyrsoperla死亡率分别为66%和100%。残留暴露对蚜虫（水仙虫0%，芸苔小蠊≤10%）和天敌（油菜小蠊≤33%，石蜡小蠊≤13%）的致死率均低于亚砜-100%。结论脂肪酸和有机硅聚合物可显著降低蚜虫数量，但对拟寄生虫有急性毒性。它们缺乏残留活性意味着需要对害虫种群进行精确的有针对性的施用，但也允许天敌种群迅速重新定居在处理过的地区。这些生物杀虫剂在战略性应用时可在OSR综合虫害管理方案中提供补充控制。©2026作者。由John Wiley & Sons Ltd代表化学工业协会出版的《害虫管理科学》。

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引用次数: 0