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Persistence of seed‐applied pesticides in soybeans: environmental influences and implications for crop protection 大豆种子施用农药的持久性:对作物保护的环境影响和启示
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-10-08 DOI: 10.1002/ps.71369
Sadhana Chhetri, James J Camberato, Christian H Krupke
{"title":"Persistence of seed‐applied pesticides in soybeans: environmental influences and implications for crop protection","authors":"Sadhana Chhetri, James J Camberato, Christian H Krupke","doi":"10.1002/ps.71369","DOIUrl":"https://doi.org/10.1002/ps.71369","url":null,"abstract":"BACKGROUND Early soybean ( <jats:italic>Glycine max</jats:italic> (L.) Merr.) planting is increasingly adopted in Indiana and the upper Midwestern USA to maximize yield potential, yet seedlings may be more vulnerable to early‐season pests and environmental stressors. Seed‐applied systemic insecticides and fungicides are widely used to mitigate these risks, but their in‐plant concentrations under cold and wet spring soil conditions remain undefined. We quantified thiamethoxam, mefenoxam, fludioxonil, and sedaxane across planting dates, growth stages, and locations. RESULTS During a 2‐year field study at three Indiana locations, soybeans were planted from early April to late May. Tissues were sampled at five growth stages: VE, VC, V1, V2, and V3/V4. Thiamethoxam was detectable in plant tissues up to later vegetative stages (V4) in both early‐ and late‐season plantings, whereas fungicides persisted only to the first trifoliate (V1) stage. Thiamethoxam concentrations were highest at emergence (~30 000–60 000 ng/g), primarily in cotyledons, and declined sharply by V4 (~50 ng/g). Associations between tissue concentrations and planting date or abiotic conditions varied by compound, year, tissue, and growth stage. No uniform planting date effect was observed. CONCLUSION Seed‐applied pesticides were concentrated in early seedling tissues and declined after emergence. No consistent relationships were observed between planting dates or abiotic conditions examined and pesticide residues in soybean tissues, making predictions about alignment between in‐plant concentrations and early‐season pest risk difficult. These early‐season field observations complement a literature base indicating that seed‐applied pesticides provide a brief, inconsistent window of protection that does not extend beyond the earliest growth stages. © 2026 The Author(s). <jats:italic>Pest Management Science</jats:italic> published by John Wiley &amp; Sons Ltd on behalf of Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"5 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149123846","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}
引用次数: 0
First report of Quizalofop ‐p‐ethyl resistance in Eriochloa villosa involving non‐target‐site mechanisms 绒毛绒螯蟹非靶位机制对Quizalofop - p -乙基抗性的首次报道
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-10-08 DOI: 10.1002/ps.71386
Guanglei Jin, Haijiao Zhou, Xingyu Chen, Ziqi Zhang, Yutong Liu, Mengyao Zhou, Chuang Wang, Zumin Gu, Jingchao Chen
{"title":"First report of Quizalofop ‐p‐ethyl resistance in Eriochloa villosa involving non‐target‐site mechanisms","authors":"Guanglei Jin, Haijiao Zhou, Xingyu Chen, Ziqi Zhang, Yutong Liu, Mengyao Zhou, Chuang Wang, Zumin Gu, Jingchao Chen","doi":"10.1002/ps.71386","DOIUrl":"https://doi.org/10.1002/ps.71386","url":null,"abstract":"BACKGROUND The emergence and spread of herbicide‐resistant weeds pose a major challenge to sustainable weed management strategies. As a troublesome grass weed in soybean and maize agroecosystems, <jats:italic>Eriochloa villosa</jats:italic> (Thunb.) Kunth has attracted increasing attention, but the mechanism of its resistance to herbicides that inhibit acetyl‐CoA carboxylase (ACCase) has not been elucidated. To elucidate the mechanisms underlying quizalofop‐p‐ethyl resistance, a resistant <jats:italic>E. villosa</jats:italic> population from Liaoning Province, China, was studied using physiological, biochemical, molecular and transcriptomic approaches. RESULTS Whole‐plant dose–response analysis revealed a moderate resistance in the resistant (R) population (resistance index = 5.23), with 50% reduction in growth values of 55.11 and 10.53 g a.i. ha <jats:sup>−1</jats:sup> for the R and susceptible (S) populations, respectively. Sequence analysis of the <jats:italic>ACCase</jats:italic> gene revealed the absence of previously reported resistance‐conferring substitutions, and <jats:italic>ACCase</jats:italic> expression showed no significant difference between the R and S populations. Furthermore, no significant differences in ACCase sensitivity were observed in all tested quizalofop‐p‐ethyl concentrations, collectively excluding the involvement of target‐site resistance. Transcriptomic analysis revealed several candidate genes, including cytochrome P450 (CYP450) genes <jats:italic>CYP724B1</jats:italic> , <jats:italic>CYP90A1</jats:italic> , <jats:italic>CYP89A2</jats:italic> and <jats:italic>CYP81Q32</jats:italic> , as well as the ATP‐binding cassette (ABC) transporters gene <jats:italic>ABCF5</jats:italic> , that exhibited elevated transcript levels in the R population and validated by quantitative reverse‐transcription (qRT)‐PCR analysis. Kyoto Encyclopedia of Genes and Genomes analysis indicated extensive involvement of plant hormone signaling pathways, particularly the abscisic acid and jasmonic acid pathways. Additionally, the R population exhibited significantly higher CYP450 abundance than the S population. CONCLUSION This study represents the first characterization of ACCase inhibitor resistance in <jats:italic>E. villosa</jats:italic> and reveals that quizalofop‐p‐ethyl resistance is mainly attributed to enhanced nontarget‐site mechanisms, likely involving CYP450‐mediated detoxification and ABC transporter activity. © 2026 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"11 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149123601","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}
引用次数: 0
Social media as a new tool for studying the composition and spatial distribution of stored‐product arthropods in households 社交媒体作为研究家庭储储节肢动物组成和空间分布的新工具
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-10-08 DOI: 10.1002/ps.71377
Tomas Vendl, Jakub Kadlec, Jiri Hadrava, Radek Aulicky, Vaclav Stejskal
{"title":"Social media as a new tool for studying the composition and spatial distribution of stored‐product arthropods in households","authors":"Tomas Vendl, Jakub Kadlec, Jiri Hadrava, Radek Aulicky, Vaclav Stejskal","doi":"10.1002/ps.71377","DOIUrl":"https://doi.org/10.1002/ps.71377","url":null,"abstract":"BACKGROUND Stored‐product pests (SPPs) are well studied in food storage and processing facilities, but their occurrence in households remains poorly known. Because household infestations are difficult to sample and monitor using standard direct surveys, we used photograph‐based identification requests from a public group on social media to investigate the composition, spatial distribution, and seasonal dynamics of stored‐product arthropods reported from households during 2020–2023. RESULTS In total, 994 SPP records were collected. Beetles dominated the dataset, accounting for 64% of records, followed by psocids, moths, and mites. Dermestid beetles were the most frequent group, representing nearly one‐third of all records, while <jats:italic>Plodia interpunctella</jats:italic> was the dominant moth species. Overall, 47 species or higher determinable taxonomic units were recorded, showing that households provide diverse resources and microhabitats for SPPs. Immature stages and activity traces were frequent, particularly in dermestids and <jats:italic>P. interpunctella</jats:italic> . SPPs represented only 16% of all household arthropod identification requests and were less seasonal than non‐pest arthropods. Pest spatial distribution differed among rooms and substrates: food‐associated species were mainly linked to kitchens, psocids and mites to bathrooms and toilets, dermestids to bedrooms and walls or ceilings, and ptinids to multiple rooms, especially windows and windowsills. CONCLUSION Households support a diverse assemblage of SPPs from different taxonomic and functional groups. Our study highlights social media as a useful complementary source of data on household pests, providing insight not only into their occurrence, but also into the taxa most likely to attract public attention and potentially require pest management advice. © 2026 The Author(s). <jats:italic>Pest Management Science</jats:italic> published by John Wiley &amp; Sons Ltd on behalf of Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"27 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149123600","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}
引用次数: 0
The potential global distribution of Drosophila suzukii , including consideration of irrigation and Australian host cropping areas 铃木果蝇潜在的全球分布,包括考虑灌溉和澳大利亚寄主种植区
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-10-08 DOI: 10.1002/ps.71366
Jessica Mae Kriticos, Elle Saber, Eric Stone
{"title":"The potential global distribution of Drosophila suzukii , including consideration of irrigation and Australian host cropping areas","authors":"Jessica Mae Kriticos, Elle Saber, Eric Stone","doi":"10.1002/ps.71366","DOIUrl":"https://doi.org/10.1002/ps.71366","url":null,"abstract":"BACKGROUND Spotted wing drosophila, <jats:italic>Drosophila suzukii</jats:italic> (Matsumura), is a major fruit fly pest of cherries and berries across Eurasia and North America, with a restricted distribution in the southern hemisphere. It is currently ranked the third greatest threat to Australia on the National Priority Plant Pest (NPPP) list (2024). Various CLIMEX, MaxEnt and mechanistic models of the potential global distribution of <jats:italic>D</jats:italic> . <jats:italic>suzukii</jats:italic> have not included irrigation effects. Here, we model the potential global distribution of <jats:italic>D</jats:italic> . <jats:italic>suzukii</jats:italic> using CLIMEX, mapped as a composite of natural rainfall and irrigation. For Australia, we overlay the composite potential distribution with host crops to identify commercial areas at risk. RESULTS The potential distribution of <jats:italic>D</jats:italic> . <jats:italic>suzukii</jats:italic> includes all Australian commercial host growing regions. The global projected range extent changes by 6% when irrigation is included, and mean within‐range global cell suitability increases by 5 Ecoclimatic Index points. Globally, the CLIMEX results indicate potential range expansion in South America, sub‐Saharan Africa, South East Asia and Oceania. CONCLUSION We have demonstrated a straightforward assessment of the overlap between host production and the potential distribution of a priority pest. This method can be applied to other NPPPs in Australia as part of a broader modelling framework, or to similar cases in other regions. © 2026 The Author(s). <jats:italic>Pest Management Science</jats:italic> published by John Wiley &amp; Sons Ltd on behalf of Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"30 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149123642","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}
引用次数: 0
Design, synthesis, and evaluation of antifungal and antibacterial activities of novel quinazolinone–formononetin derivatives 新型喹唑啉酮-刺芒柄花素衍生物的设计、合成及抑菌活性评价
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-10-06 DOI: 10.1002/ps.71376
Xiaoyan Pan, Junrong Song, Qingxue Hu, Xiaoting Geng, Fang Tian, Barana C. Jayawardana, Buddhi Marambe, Gefei Hao, Linhong Jin, Wei Xue
{"title":"Design, synthesis, and evaluation of antifungal and antibacterial activities of novel quinazolinone–formononetin derivatives","authors":"Xiaoyan Pan, Junrong Song, Qingxue Hu, Xiaoting Geng, Fang Tian, Barana C. Jayawardana, Buddhi Marambe, Gefei Hao, Linhong Jin, Wei Xue","doi":"10.1002/ps.71376","DOIUrl":"https://doi.org/10.1002/ps.71376","url":null,"abstract":"BACKGROUND Plant pathogenic fungi and bacteria cause substantial losses in agricultural production worldwide, and escalating resistance to conventional agrochemicals necessitates the development of novel, environmentally benign pesticides. Formononetin, a naturally occurring isoflavone, exhibits promising bioactivities, while quinazolinone and piperidine moieties serve as privileged pharmacophores in agrochemical discovery. RESULTS A series of novel formononetin derivatives bearing piperidine–quinazolinone scaffolds were designed, synthesized, and assessed for antifungal and antibacterial activities. Among them, T6 exhibited the strongest antifungal activity against <jats:italic>Fusarium oxysporum</jats:italic> f. sp. <jats:italic>capsicum</jats:italic> ( <jats:italic>Fo</jats:italic> ), with a median effective concentration (EC <jats:sub>50</jats:sub> ) of 8.2 μg/mL, which was markedly superior to that of azoxystrobin (Az, 79.7 μg/mL). T9 showed outstanding antibacterial activity against <jats:italic>Xanthomonas axonopodis</jats:italic> pv. <jats:italic>citri</jats:italic> ( <jats:italic>Xac</jats:italic> ), with an EC <jats:sub>50</jats:sub> of 1.8 μg/mL, far exceeding the activities of thiodiazole‐copper (TC, 79.6 μg/mL) and formononetin (FMN, 96.8 μg/mL). Notably, T6 primarily exerts an antifungal effect, whereas T9 mainly exhibits an antibacterial effect. Mechanistic studies revealed that T6 compromised plasma membrane integrity, triggered oxidative stress, and induced leakage of intracellular components in <jats:italic>Fo</jats:italic> . Meanwhile, T9 suppressed <jats:italic>Xac</jats:italic> growth, showed significant protective and curative activities <jats:italic>in vivo</jats:italic> against <jats:italic>Xac</jats:italic> , reduced swarming motility, inhibited biofilm formation, and decreased extracellular cellulase and amylase activities in a dose‐dependent manner. Density functional theory calculations clarified the electronic features governing the reactivity and stability of these compounds. CONCLUSION These findings provide both theoretical and experimental foundations for the rational design of next‐generation antifungal and antibacterial agents aimed at sustainable crop protection. © 2026 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"58 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149087541","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}
引用次数: 0
Identification, quantification, and management of human health risks from long‐distance pesticide transport 农药长途运输对人类健康风险的识别、量化和管理
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-10-06 DOI: 10.1002/ps.71372
Yabi Huang,Zijian Li,Peter Fantke
{"title":"Identification, quantification, and management of human health risks from long‐distance pesticide transport","authors":"Yabi Huang,Zijian Li,Peter Fantke","doi":"10.1002/ps.71372","DOIUrl":"https://doi.org/10.1002/ps.71372","url":null,"abstract":"Abstract BACKGROUND Human health risks associated with long‐distance pesticide transport are increasingly recognized but remain insufficiently assessed. Traditional assessments have focused on local applications, whereas growing evidence shows that pesticides can travel across large regions through air, water systems, and trade networks, leading to human exposure far from the original pesticide sources. In response, this study aims to propose an integrated conceptual framework that can identify key transport pathways, clarify long‐distance risk, and explore methods for quantifying exposure across interconnected systems. RESULTS We identify four major groups of pathways through which long‐distance pesticide exposure can occur, including environmental transport, water distribution systems, food trade, and non‐food commodity trade. Based on these pathways, we propose a modular source‐to‐receptor assessment framework that links three main components: pesticide sources, transport, redistribution, and transformation processes, and receptor‐level exposure and risk. The framework can integrate pathway‐specific environmental fate and distribution, hydrological, infrastructure, crop, trade, and exposure models. We further propose a three‐tier implementation strategy: screening‐level prioritization, spatiotemporal modeling, and integrated receptor‐level assessment. Key considerations include source attribution, transformation products, uncertainty, and aggregate (across sources per pesticide) and cumulative (across pesticides) exposure. CONCLUSION Long‐distance pesticide transport should be considered as a system‐level exposure problem rather than as a series of isolated pathways. The proposed framework provides an initial basis for linking pesticide use with geographically displaced human exposure and may support future development of more integrated monitoring, assessment, and risk management approaches. © 2026 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"409 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149090523","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}
引用次数: 0
UV mutagenesis‐enhanced Streptomyces nogalater produces a novel streptothricin‐like compound with strong activity against cabbage soft rot 紫外诱变增强的nogalater链霉菌产生了一种新型的链霉素样化合物,具有很强的抗卷心菜软腐病活性
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-10-06 DOI: 10.1002/ps.71282
Young Sook Kim, Mirjalol Umurzokov, Hae Young Kim, Chun‐Zhi Jin, Eun Ae Kim, Kwang Min Cho
{"title":"UV mutagenesis‐enhanced Streptomyces nogalater produces a novel streptothricin‐like compound with strong activity against cabbage soft rot","authors":"Young Sook Kim, Mirjalol Umurzokov, Hae Young Kim, Chun‐Zhi Jin, Eun Ae Kim, Kwang Min Cho","doi":"10.1002/ps.71282","DOIUrl":"https://doi.org/10.1002/ps.71282","url":null,"abstract":"BACKGROUND A total of 1000 soil‐derived actinomycetes were isolated and screened for antibacterial activity against <jats:italic>Pectobacterium carotovorum</jats:italic> subsp <jats:italic>. carotovorum</jats:italic> (cabbage soft‐rot disease). The most potent isolate, KRA705‐18 , was selected and UV mutagenesis was performed to improve its bioactivity. The active compound was purified, and its molecular formula and structure were identified through multiple spectroscopic analysis. RESULTS An irradiation time of 90 s was found to be optimal for mutant selection, yielding a 1.09% survival rate. After two successive mutagenesis cycles, the mutant strain ( <jats:italic>Streptomyces</jats:italic> sp <jats:italic>.</jats:italic> KRA0514‐6 ) exhibited the strongest and most stable antibacterial activity, consistently achieving over 90% inhibition within 24 h. The culture broth of the mutant achieved complete (100%) cabbage soft rot control at a 250‐fold dilution, comparable to oxolinic acid (200 ppm) under glasshouse conditions. Field trials further showed stable activity at the same dilution rates, with control efficacies of more than 70% at 21 days after treatment. Phylogenetic analysis based on 16S rRNA gene sequencing identified the mutant strain as <jats:italic>Streptomyces</jats:italic> sp. KRA0514‐6 , closely related to <jats:italic>Streptomyces nogalater</jats:italic> JCM4799T. Bioassay‐guided fractionation and purification of culture filtrate using C18 open‐column chromatography, Sephadex LH‐20, preparative high‐performance liquid chromatography and hydrophilic interaction liquid chromatography led to the isolation of the active substance HL‐3. <jats:italic>In vivo</jats:italic> glasshouse assays confirmed that purified HL‐3 provided 100% cabbage soft rot disease control at concentrations &gt;1 ppm. HR‐ESI‐MS analysis determined the molecular weight of HL‐3 to be 459 g mol <jats:sup>−1</jats:sup> , leading to the identification of its molecular formula as C <jats:sub>17</jats:sub> H <jats:sub>29</jats:sub> N <jats:sub>7</jats:sub> O <jats:sub>8</jats:sub> . Finally, by nuclear magnetic resonance spectroscopic analysis, HL‐3 was identified as novel streptothricin‐like compound containing <jats:italic>N</jats:italic> ‐methylglycine instead of <jats:italic>β</jats:italic> ‐lysine. CONCLUSION Overall, UV mutagenesis effectively enhanced the antibacterial potential of the wild strain, and the purified compound, HL‐3 , exhibited potent activity against cabbage soft rot disease, which can be a promising biocontrol agent for sustainable plant disease management strategies. The results of this study provide new insights into streptothricin structure–activity relationships and suggest the existence of unknown biosynthetic mechanisms of <jats:italic>S. nogalater</jats:italic> . © 2026 The Author(s). <jats:italic>Pest Management Science</jats:italic> published by John Wiley &amp; Sons Ltd on behalf of Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"58 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149087510","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}
引用次数: 0
A novel elicitor confers apple resistance to Glomerella cingulata through modulation of flavonoid metabolic pathways 一种新的激发子通过调节类黄酮代谢途径赋予苹果对带状肾小球的抗性
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-10-06 DOI: 10.1002/ps.71356
Xinyue Cui,Mingjuan Yang,Yimeng Wang,Sen Lian,Weichao Ren,Pingliang Li,Na Liu,Baohua Li,Yaozhong Zhang,Caixia Wang
{"title":"A novel elicitor confers apple resistance to\u0000 \u0000 Glomerella cingulata\u0000 \u0000 through modulation of flavonoid metabolic pathways","authors":"Xinyue Cui,Mingjuan Yang,Yimeng Wang,Sen Lian,Weichao Ren,Pingliang Li,Na Liu,Baohua Li,Yaozhong Zhang,Caixia Wang","doi":"10.1002/ps.71356","DOIUrl":"https://doi.org/10.1002/ps.71356","url":null,"abstract":"Abstract BACKGROUND Apple is a globally vital economic crop severely damaged by Glomerella leaf spot (GLS) caused by Glomerella cingulata . Current disease management relies heavily on chemical fungicides, but long‐term intensive application has triggered pathogen resistance, weakened control efficacy, aggravated pesticide residues and environmental contamination, and severely restricted the sustainable development of the apple industry. This study systematically investigated the disease resistance‐inducing potential of 3,6‐bis(1‐methylpropyl)‐2,5‐piperazinedione (BMP), a functional metabolite from plant endophytes. RESULTS BMP induced strong resistance against G. cingulata in detached apple leaves. Exogenous application of 0.1 μg mL −1 BMP reduced leaf lesion counts by 58.46% at the early GLS stage, persistently alleviated fruit disease severity and simultaneously promoted seedling root development and biomass accumulation. It functions by enhancing core defense enzyme activities and defense‐related gene expression, boosting flavonoid synthesis via down‐regulating MdMYB16 and establishing a multi‐layered defense system. CONCLUSION This work provides a novel strategy for apple disease management. It can reduce pesticide use, lower environmental impact, and improve fruit quality and safety, which fits the development concept of green agriculture and holds favorable application prospects. © 2026 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"1141 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149092188","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}
引用次数: 0
Colonization of endophytic Bacillus velezensis PEBA20 in eucalyptus and its biocontrol effect against eucalyptus bacterial wilt 内生芽孢杆菌PEBA20在桉树上的定殖及其对桉树青枯病的防效
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-10-06 DOI: 10.1002/ps.71299
Xiangying Li, Xin Wang, Xiaoping Peng, Shengkun Wang, Haibin Ma, Zhenyu Liu
{"title":"Colonization of endophytic Bacillus velezensis PEBA20 in eucalyptus and its biocontrol effect against eucalyptus bacterial wilt","authors":"Xiangying Li, Xin Wang, Xiaoping Peng, Shengkun Wang, Haibin Ma, Zhenyu Liu","doi":"10.1002/ps.71299","DOIUrl":"https://doi.org/10.1002/ps.71299","url":null,"abstract":"BACKGROUND Eucalyptus bacterial wilt, caused by <jats:italic>Ralstonia pseudosolanacearum,</jats:italic> is a highly destructive and difficult‐to‐control vascular disease, primarily because the pathogen invades and occludes host vascular tissues. Exploiting the ability of endophytic biocontrol bacteria to colonize vascular tissues represents a promising strategy for managing this disease. RESULTS In this study, we investigated the colonization behavior of the endophytic bacterium <jats:italic>Bacillus velezensis</jats:italic> PEBA20 in eucalyptus and evaluated its biocontrol efficacy against bacterial wilt. Both viable cells and cell‐free fermentation filtrates of PEBA20 inhibited the growth of <jats:italic>R. pseudosolanacearum</jats:italic> , and PEBA20 cells exhibited a clear capacity to occupy and invade pathogen colonies. PEBA20 survived and proliferated in artificial soil, colonized the eucalyptus root surface, including grooves, fissures, and root hairs, and was subsequently detected in root vascular tissues and in stem intercellular spaces and vascular tissues. Detached‐branch assays showed that PEBA20 restricted lesion expansion and pathogen accumulation in eucalyptus branches, with a stronger suppressive effect when PEBA20 was inoculated before the pathogen. Pot experiments further demonstrated that PEBA20 application enhanced the activities of defense‐related enzymes, including superoxide dismutase, phenylalanine ammonia‐lyase, and peroxidase; significantly promoted seedling growth; and achieved 5.0% biocontrol efficacy against eucalyptus bacterial wilt. The field trial further supported the growth‐promoting and disease‐suppressive potential of PEBA20. CONCLUSION Collectively, these findings indicate that <jats:italic>B. velezensis</jats:italic> PEBA20 has a strong capacity for endophytic colonization, disease suppression, and plant growth promotion, providing both a promising bacterial resource and a theoretical basis for the biological control of vascular wilt diseases caused by <jats:italic>R. pseudosolanacearum</jats:italic> . © 2026 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"23 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149087511","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}
引用次数: 0
Correction to “Control of early blight caused by Alternaria solani using metal oxide nanostructures as direct antifungal agents and resistance inducers in potato plants” 对“金属氧化物纳米结构作为直接抗真菌剂和抗性诱导剂防治马铃薯早疫病”的修正
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-10-05 DOI: 10.1002/ps.71395
{"title":"Correction to “Control of early blight caused by Alternaria solani using metal oxide nanostructures as direct antifungal agents and resistance inducers in potato plants”","authors":"","doi":"10.1002/ps.71395","DOIUrl":"https://doi.org/10.1002/ps.71395","url":null,"abstract":"","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"1 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086868","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}
引用次数: 0
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