Yao Chen, Zili Ren, Jun Liu, Mengyuan Yao, Rui Zhao, Haoran Li, Quan Gao, Haiqun Cao, Jiawang Wang
Bridged bicyclic systems, characterized by their distinctive three-dimensional topology and inherent ring strain, confer unique spatial configurations and chemical reactivity. Increasing the molecular three-dimensionality and the fraction of sp3-hybridized carbon atoms (Csp3) in lead compounds enhances drug-like behavior. In particular, the norbornene scaffold—an archetypal bridged bicyclic framework—offers significant potential for pesticide optimization by enhancing bioactivity.
{"title":"Inspired by norbornylene: design, synthesis, antifungal activity, and mechanism of action of novel stereoisomeric dicarboximide fungicides","authors":"Yao Chen, Zili Ren, Jun Liu, Mengyuan Yao, Rui Zhao, Haoran Li, Quan Gao, Haiqun Cao, Jiawang Wang","doi":"10.1002/ps.70648","DOIUrl":"https://doi.org/10.1002/ps.70648","url":null,"abstract":"Bridged bicyclic systems, characterized by their distinctive three-dimensional topology and inherent ring strain, confer unique spatial configurations and chemical reactivity. Increasing the molecular three-dimensionality and the fraction of <i>sp</i><sup><b>3</b></sup>-hybridized carbon atoms (C<i>sp</i><sup><b>3</b></sup>) in lead compounds enhances drug-like behavior. In particular, the norbornene scaffold—an archetypal bridged bicyclic framework—offers significant potential for pesticide optimization by enhancing bioactivity.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"3 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146210513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abdallah Alayan, Stéphane Boyer, Jean-Luc Verdeil, Fréderic Gatineau, Patrick Hermet, Jean-Louis Bantignies, Christian Ligoure
Background: Efficient application of phytosanitary sprays is essential for sustainable control of foliar fungal diseases such as Black Sigatoka in banana crops. Mineral oils are commonly used for their fungistatic properties, yet their modes-of-action, particularly their interactions with leaf tissues, remain poorly understood. This study aims to elucidate the physical behavior of mineral oil droplets on banana leaves and their subsequent diffusion into internal tissues.
Results: High-speed imaging shows that mineral oil droplets reach their maximum spread without retraction and exhibit only low splashing at high impact velocities. Spray coverage is strongly anisotropic and increases over time following a power-law scaling (ta with α = 0.21 ± 0.02), in agreement with Tanner's law. Micro-infrared spectroscopy reveals that mineral oil penetrates the leaf, with preferential accumulation in the palisade parenchyma. Diffusion into internal leaf tissues, specifically the palisade parenchyma, follows Fick's law after a latency of ≈3.6 h, with an effective diffusion coefficient of (1.2 ± 0.8) × 10-8 cm2 s-1.
Yingqiao Dang, Wenyu Chen, Xiaoyi Wang, Yanlong Zhang, Ke Wei, Liangming Cao
Climate warming poses a critical challenge to ectotherm survival. While endosymbionts are known to influence host thermal tolerance, the fitness consequences of this symbiosis under sustained warming, particularly for parasitoids used in biological control, remain unclear. Here, we investigated this phenomenon using the key endoparasitoid Tetrastichus planipennisi of the emerald ash borer – a destructive wood-boring pest across Asia, North America, and Europe.
{"title":"Regulatory role of endosymbionts in parasitoid under thermal stress: a case study of Tetrastichus planipennisi","authors":"Yingqiao Dang, Wenyu Chen, Xiaoyi Wang, Yanlong Zhang, Ke Wei, Liangming Cao","doi":"10.1002/ps.70662","DOIUrl":"https://doi.org/10.1002/ps.70662","url":null,"abstract":"Climate warming poses a critical challenge to ectotherm survival. While endosymbionts are known to influence host thermal tolerance, the fitness consequences of this symbiosis under sustained warming, particularly for parasitoids used in biological control, remain unclear. Here, we investigated this phenomenon using the key endoparasitoid <i>Tetrastichus planipennisi</i> of the emerald ash borer – a destructive wood-boring pest across Asia, North America, and Europe.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"2 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146210327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Plants deploy sophisticated defense strategies, including emission of volatile organic compounds that attract natural enemies of herbivores. Although plant immunity inducers such as amino-oligosaccharides (AOS) are known to enhance direct resistance against pathogens, their influence on tritrophic interactions through the modulation of plant volatiles remains unclear. This study investigates how AOS treatment affects rice volatile-mediated attraction of the egg parasitoid Trichogramma japonicum and its parasitism behavior toward the rice striped stem borer (SSB, Chilo suppressalis).
{"title":"Decoding the chemical conversation: amino-oligosaccharides induce rice volatiles to modify host selection of the egg parasitoid Trichogramma japonicum","authors":"Xin-Yue Zhu, Jia-Wei Sun, WMWW Kandegama, Lian-Sheng Zang","doi":"10.1002/ps.70639","DOIUrl":"https://doi.org/10.1002/ps.70639","url":null,"abstract":"Plants deploy sophisticated defense strategies, including emission of volatile organic compounds that attract natural enemies of herbivores. Although plant immunity inducers such as amino-oligosaccharides (AOS) are known to enhance direct resistance against pathogens, their influence on tritrophic interactions through the modulation of plant volatiles remains unclear. This study investigates how AOS treatment affects rice volatile-mediated attraction of the egg parasitoid <i>Trichogramma japonicum</i> and its parasitism behavior toward the rice striped stem borer (SSB, <i>Chilo suppressalis</i>).","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"6 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146210328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Understanding the relationship between the parasitism characteristics, development, and reproduction of parasitoids and host age is crucial for effective pest biocontrol. To optimize the biological control strategy of the potato tuber moth (PTM), Phthorimaea operculella, the parasitic behavior, host preference, offspring fitness, and glasshouse efficacy of a natural Trichogramma chilonis strain on PTM eggs of different ages were assessed.
{"title":"Egg-age dependent parasitism by Trichogramma chilonis: implications for host-use pattern and strategy of parasitoid in biological control on Phthorimaea operculella","authors":"Ganlin Sun, Yingyu Yan, Haosheng Cai, Yunxiang Yang, Zhengbin Li, Yawen Cao, Hanwang Lei, Yuhe Dai, Guanli Xiao, Bin Chen","doi":"10.1002/ps.70670","DOIUrl":"https://doi.org/10.1002/ps.70670","url":null,"abstract":"Understanding the relationship between the parasitism characteristics, development, and reproduction of parasitoids and host age is crucial for effective pest biocontrol. To optimize the biological control strategy of the potato tuber moth (PTM), <i>Phthorimaea operculella</i>, the parasitic behavior, host preference, offspring fitness, and glasshouse efficacy of a natural <i>Trichogramma chilonis</i> strain on PTM eggs of different ages were assessed.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"8 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146210356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lihui Shao, Ying Wu, Xianqun Hu, Bo Zhang, Xiang Zhou, Song Yang
Addressing escalating pesticide resistance and food security necessitates sustainable plant pathogen management. This study rationally designed and synthesized novel chromone-acylhydrazone derivatives engineered to target fungal tubulin, aiming to provide new avenues for disease control.
{"title":"Revolutionizing anti-fungal strategies: novel Chromone-based microtubulin target fungicides for Sclerotinia Sclerotiorum of oilseed rape","authors":"Lihui Shao, Ying Wu, Xianqun Hu, Bo Zhang, Xiang Zhou, Song Yang","doi":"10.1002/ps.70666","DOIUrl":"https://doi.org/10.1002/ps.70666","url":null,"abstract":"Addressing escalating pesticide resistance and food security necessitates sustainable plant pathogen management. This study rationally designed and synthesized novel chromone-acylhydrazone derivatives engineered to target fungal tubulin, aiming to provide new avenues for disease control.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"96 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146210514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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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