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Trends in mathematical modeling of Lobesia botrana growth and voltinism: A comparative review 植物藤本植物生长和伏伏性数学模型的发展趋势:比较综述
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2026-04-01 Epub Date: 2026-01-20 DOI: 10.1016/j.cropro.2026.107542
Estefania Aguirre-Zapata , Humberto Morales , Fernando di Sciascio , Adriana N. Amicarelli
{"title":"Trends in mathematical modeling of Lobesia botrana growth and voltinism: A comparative review","authors":"Estefania Aguirre-Zapata ,&nbsp;Humberto Morales ,&nbsp;Fernando di Sciascio ,&nbsp;Adriana N. Amicarelli","doi":"10.1016/j.cropro.2026.107542","DOIUrl":"10.1016/j.cropro.2026.107542","url":null,"abstract":"<div><div>Mathematical models are essential tools for understanding and predicting the development of insect pests under variable environmental conditions. In the case of <em>Lobesia botrana</em>, several modeling approaches have been proposed over the past few decades, ranging from empirical models based on thermal sums to mechanistic formulations (first-principles-based models) that incorporate physiological age, photoperiod, and host phenology. This review examines the primary modeling strategies developed for this species, highlighting conceptual advances, limitations, and areas where further integration is required. This paper examines how these models represent temperature-driven development, mortality, and stage transitions, as well as how they address biological processes such as overlapping generations, environmental plasticity, and developmental thresholds. It also highlights the challenges of transferring models between regions with different climatic and phenological conditions. As a case study, we compare the predictions of four representative models using capture data from a vineyard in the southern hemisphere for the 2020–2021 season. The results show that model performance depends not only on structure or complexity, but on the capacity to integrate biological knowledge in a modular and interpretable way. The importance of flexible easily applicable modeling frameworks that allow for adaptation to local conditions and enable transparent, ecologically and economically meaningful pest predictions is emphasized.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"202 ","pages":"Article 107542"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146014550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Farmers' knowledge and perceptions of fall armyworm, Spodoptera frugiperda (J.E. Smith) damage and factors affecting control method choices in Benin, West Africa 西非贝宁农民对秋粘虫、夜蛾危害的认识及影响防治方法选择的因素
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2026-04-01 Epub Date: 2025-11-29 DOI: 10.1016/j.cropro.2025.107509
Tamegnon Hospice Tossou , Jan-Henning Sommer , Cyriaque Agboton , Razack Adeoti , Manuele Tamò , Florian M.W. Grundler , Christian Borgemeister
{"title":"Farmers' knowledge and perceptions of fall armyworm, Spodoptera frugiperda (J.E. Smith) damage and factors affecting control method choices in Benin, West Africa","authors":"Tamegnon Hospice Tossou ,&nbsp;Jan-Henning Sommer ,&nbsp;Cyriaque Agboton ,&nbsp;Razack Adeoti ,&nbsp;Manuele Tamò ,&nbsp;Florian M.W. Grundler ,&nbsp;Christian Borgemeister","doi":"10.1016/j.cropro.2025.107509","DOIUrl":"10.1016/j.cropro.2025.107509","url":null,"abstract":"<div><div>This study examines farmers' knowledge and perceptions of damage caused by fall armyworm (FAW, <em>Spodoptera frugiperda</em>), reports their estimated production losses in southern Benin between 2020 and 2022, and investigates the factors that influenced pest management decisions. A semi-structured questionnaire was used to interview 242 farmers across two agroecological zones of southern Benin from September to December 2023. About 93 % of farmers had broad knowledge of FAW, and 95 % believed they had been affected by infestations and considered the pest dangerous. However, 41 % misinterpreted the timing of FAW attacks, believing that the insect emerged and caused damage only at the mature stage of maize. As a result, synthetic insecticides were frequently applied after significant damage had already occurred. Infestation levels varied across zones: farmers in the Guinean zone reported relatively low infestation (20 %), while those in the Sudano-Guinean zone reported higher levels (40 %), especially in 2021. Yield losses were estimated at 20–40 % during this period. In terms of management, 73 % of farmers relied on synthetic insecticides, 2.5 % adopted cultural practices, 11.6 % used no control methods, and only 1.2 % applied botanical extracts. Further analysis revealed that the choice of FAW control measures was significantly influenced by years of maize farming experience (<em>P</em> &lt; 0.002), financial means (<em>P</em> &lt; 0.001), and to a lesser extent, perceptions of control method effectiveness (<em>P</em> &lt; 0.068). These findings showed that although farmers are aware of FAW, misperceptions about its biology and timing of insecticide application remain problematic. To reduce yield losses, extension programs should prioritize training on the biology of FAW, timing of chemical applications, and consider the aforementioned factors when promoting management practices for FAW control in Benin and similar agroecological contexts.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"202 ","pages":"Article 107509"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145619680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Insecticidal effect of diatomaceous earth on grains infected with fungi 硅藻土对真菌侵染谷物的杀虫效果
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2026-04-01 Epub Date: 2025-11-29 DOI: 10.1016/j.cropro.2025.107501
Stefanos Pentsidis , Maria Sakka , Christos Rumbos , Ioannis Vagelas , Christos G. Athanassiou
{"title":"Insecticidal effect of diatomaceous earth on grains infected with fungi","authors":"Stefanos Pentsidis ,&nbsp;Maria Sakka ,&nbsp;Christos Rumbos ,&nbsp;Ioannis Vagelas ,&nbsp;Christos G. Athanassiou","doi":"10.1016/j.cropro.2025.107501","DOIUrl":"10.1016/j.cropro.2025.107501","url":null,"abstract":"<div><div>The coexistence of fungi and insects in stored grains often results in synergistic effects that accelerate grain deterioration and increase mycotoxin contamination. Diatomaceous earth (DE) is widely used as inert dusts for insect control, but their efficacy on grains already infested by fungi has not yet been evaluated. In this study, the effect of a commercial DE formulation was examined on wheat kernels that were either fungus-free or infected by fungi (mainly <em>Fusarium graminearum</em> with minor proportions of <em>Aspergillus</em> and <em>Penicillium</em>). Bioassays were conducted with the lesser grain borer, <em>Rhyzopertha dominica</em> (F.), the rice weevil, <em>Sitophilus oryzae</em> (L.), and the granary weevil, <em>Sitophilus granarius</em> (L.), under two DE concentrations (500 and 1000 ppm). Results indicated that DE completely suppressed progeny production of <em>S. oryzae</em> and <em>S. granarius</em> in fungus-free wheat, but the presence of fungi moderated this effect, with even low levels of fungal infestation supporting progeny survival. Conversely, kernels fully infected by fungi (100 %) resulted in complete mortality of both <em>Sitophilus</em> species, suggesting a threshold beyond which fungal development dominates over insect survival. For <em>R. dominica</em>, progeny production was limited regardless of treatment. These findings demonstrate that fungal presence strongly influences DE efficacy, highlighting the complex interactions between fungi, insects, and inert dusts in stored grain ecosystems. Considering that fungi can both reduce and enhance insect survival depending on their prevalence, the integration of DEs in pest management should also take into consideration fungal infestation levels to optimize efficacy.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"202 ","pages":"Article 107501"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145614012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Evaluation of droplet deposition effects of pre-wetting application by UAVs in mountain Nanguo pear orchards 无人机预湿润在山区南果梨园滴下效果评价
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2026-04-01 Epub Date: 2025-12-23 DOI: 10.1016/j.cropro.2025.107532
Weixiang Yao , Hao Yan , Yu Chang , Ziqi Yu , Boli Xing , Chunling Chen , Pengchao Chen
{"title":"Evaluation of droplet deposition effects of pre-wetting application by UAVs in mountain Nanguo pear orchards","authors":"Weixiang Yao ,&nbsp;Hao Yan ,&nbsp;Yu Chang ,&nbsp;Ziqi Yu ,&nbsp;Boli Xing ,&nbsp;Chunling Chen ,&nbsp;Pengchao Chen","doi":"10.1016/j.cropro.2025.107532","DOIUrl":"10.1016/j.cropro.2025.107532","url":null,"abstract":"<div><div>As a novel pesticide application platform, unmanned aerial vehicles (UAVs) demonstrate a remarkable ability to overcome terrain-related constraints. However, their application effectiveness requires further optimization for improved performance. Based on the evaluation of spraying performance for two typical plant protection UAVs, this study presents, for the first time, a field evaluation of droplet deposition through the pre-wetting application method in mountain Nanguo pear orchards. Compared to conventional centrifugal nozzles, misting centrifugal nozzles exhibit superior performance in terms of droplet coverage and droplet density, with increases of 121.36 % and 393.53 %, respectively. The leaf inclination angle has a certain effect on UAV spraying performance, particularly when the inclination angle is positive, where a significant enhancement in deposition is observed (<em>P</em> = 0.04 &lt; 0.05). Pre-wetting application methods with varying pre-wetting amounts showed considerable differences in enhancing UAV spraying performance. The study found that the most marked enhancement in deposition in the mid-canopy layer occurred at a pre-wetting amount of 600 L/ha, with a 39.4 % improvement. For aerial spraying operations on mountain orchard trees such as Nanguo pear, applying an appropriate pre-wetting volume can enhance UAV droplet deposition effectiveness. Moreover, when conducting UAV spraying experiments in orchards, it is advisable to consider the influence of leaf inclination angles when placing samplers and collecting leaf samples.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"202 ","pages":"Article 107532"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145823000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Assessing artificial diet and susceptibility of Mexican corn rootworm (Diabrotica virgifera zeae Krysan & Smith) larvae to Gpp34Ab1/Tpp35Ab1 protein 人工饲料对墨西哥玉米根虫(Diabrotica virgifera zeae Krysan & Smith)幼虫对Gpp34Ab1/Tpp35Ab1蛋白敏感性的研究
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2026-04-01 Epub Date: 2026-01-19 DOI: 10.1016/j.cropro.2026.107544
Dalton C. Ludwick , David L. Kerns , Bruce E. Hibbard , Man P. Huynh
{"title":"Assessing artificial diet and susceptibility of Mexican corn rootworm (Diabrotica virgifera zeae Krysan & Smith) larvae to Gpp34Ab1/Tpp35Ab1 protein","authors":"Dalton C. Ludwick ,&nbsp;David L. Kerns ,&nbsp;Bruce E. Hibbard ,&nbsp;Man P. Huynh","doi":"10.1016/j.cropro.2026.107544","DOIUrl":"10.1016/j.cropro.2026.107544","url":null,"abstract":"<div><div>Mexican corn rootworm, <em>Diabrotica virgifera zeae</em> (Krysan &amp; Smith), and western corn rootworm, <em>D. v. virgifera</em> LeConte, are both subspecies of <em>D. virgifera</em>. Knowledge of Mexican corn rootworm is extremely limited and biological and management assumptions for it, including resistance management programs, are based on western corn rootworm. To better understand the degree of similarity to western corn rootworm and potential management options, Mexican corn rootworm from a Texas field population were exposed to different transgenic corn hybrids, reared on an artificial diet designed for western corn rootworm, and tested for their response to varying doses of Gpp34Ab1/Tpp35Ab1. The results of the field test revealed corn hybrids that contained a single Cry protein were less protected than hybrids expressing two or more proteins with the most protection provided by a hybrid expressing two Cry toxins and a double-stranded RNA (dvSnf7). Mexican corn rootworm larvae grew normally on the artificial diet, though they ultimately weighed less when compared to western corn rootworm larvae. Lastly, Mexican corn rootworm larvae from this population were significantly less susceptible to Gpp34Ab1/Tpp35Ab1 than a susceptible western corn rootworm colony, but the insects responded similarly in terms of weight inhibition. Together, the field and diet toxicity data suggest that the Texas field population of Mexican corn rootworm was tolerant to Gpp34Ab1/Tpp35Ab1 and likely the other Cry proteins designed to control corn rootworms. Currently, fields with similar issues to this situation should incorporate a pyramided corn hybrid expressing dsRNA and Bt proteins.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"202 ","pages":"Article 107544"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146014549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Adoption and dis-adoption of push-pull technology in East Africa: Evidence from survival analysis and machine learning 东非推挽技术的采用与不采用:来自生存分析和机器学习的证据
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2026-04-01 Epub Date: 2025-11-28 DOI: 10.1016/j.cropro.2025.107500
Denis Waiswa , Beatrice Wambui Muriithi , Alice Warukira Murage , Dave Mwangi Ireri , Fredah Maina , Fahri Yavuz
{"title":"Adoption and dis-adoption of push-pull technology in East Africa: Evidence from survival analysis and machine learning","authors":"Denis Waiswa ,&nbsp;Beatrice Wambui Muriithi ,&nbsp;Alice Warukira Murage ,&nbsp;Dave Mwangi Ireri ,&nbsp;Fredah Maina ,&nbsp;Fahri Yavuz","doi":"10.1016/j.cropro.2025.107500","DOIUrl":"10.1016/j.cropro.2025.107500","url":null,"abstract":"<div><div>This study examines the timing to adoption and dis-adoption, as well as the key drivers influencing these transitions, for Push-Pull Technology (PPT) in East Africa using household-level panel data from extensive surveys conducted in Ethiopia, Kenya, Rwanda, Uganda, and Tanzania. Using discrete-time proportional hazard models, we estimate the hazard functions for PPT adoption and dis-adoption and complement this with machine learning–based survival analysis through Extreme Gradient Boosting (XGBoost) to evaluate and enhance predictive performance. Both approaches consistently identify peer networks measured by the number of known PPT adopters, frequent extension contact, and farmer group membership as the most influential drivers of adoption and long-term retention. Farmers' positive perceptions of PPT's pest-control effectiveness (against stemborer, Striga, and fall armyworm) significantly accelerate uptake and reduce exit risk. Access to diverse information sources also speeds adoption, while participation in PPT training programs and repeated training sessions are essential for sustaining use over time. These findings suggest that complementary to ongoing efforts to improve input access, enhancing farmers' perceptions through targeted education, visible adopter clusters, and evidence-based demonstrations, together with embedded extension services, repeated interactive training, and country-tailored strategies, offer a roadmap for accelerating uptake and securing the sustained use of PPT across East Africa.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"202 ","pages":"Article 107500"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145611910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Screening of effective agents and field efficacy trials on control ginger rhizome rot caused by Fusarium species 生姜枯萎病防治药剂筛选及田间药效试验
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2026-04-01 Epub Date: 2026-01-10 DOI: 10.1016/j.cropro.2026.107539
Fengchao Wang , Jingwei Gao , Lelin Zhao , Jeremiah Joe Kabissa , Haiyan Wang , Yan Jin , Hongyan Wang
{"title":"Screening of effective agents and field efficacy trials on control ginger rhizome rot caused by Fusarium species","authors":"Fengchao Wang ,&nbsp;Jingwei Gao ,&nbsp;Lelin Zhao ,&nbsp;Jeremiah Joe Kabissa ,&nbsp;Haiyan Wang ,&nbsp;Yan Jin ,&nbsp;Hongyan Wang","doi":"10.1016/j.cropro.2026.107539","DOIUrl":"10.1016/j.cropro.2026.107539","url":null,"abstract":"<div><div>Ginger rhizome rot, poses a significant challenge in major ginger growing regions of China, adversely affecting both yield and quality. In this study, we identified three <em>Fusarium</em> species responsible for the disease isolated from infected plants. The pathogens were identified as <em>Fusarium proliferatum</em>, <em>F. oxysporum</em>, and <em>F. solani</em> through morphological and molecular identification. We established the pathogenicity of three target pathogens and evaluated the efficacy of nine antifungal agents against these pathogens using mycelial growth rate assays and spore germination tests. Subsequent safety assessments of the selected antifungal agents on ginger plants and field efficacy trials were conducted to validate practical applicability. Among the tested antifungal agents, pyraclostrobin and tetramycin displayed potent inhibitory effects on both mycelial proliferation and spore germination across all three pathogens species. Specifically, pyraclostrobin demonstrated EC<sub>50</sub> values for mycelial inhibition of 1.637, 3.177, and 1.301 mg/L against <em>F. proliferatum</em> LW-FP4, <em>F. oxysporum</em> LW-FO3, and <em>F. solani</em> LW-FS2, respectively, while spore inhibition EC<sub>50</sub> values were found to be 0.025, 1.374, and 0.065 mg/L. Tetramycin exhibited mycelial EC<sub>50</sub> values of 5.460, 5.649, and 1.436 mg/L, alongside spore inhibition EC<sub>50</sub> values of 2.502, 2.431, and 2.015 mg/L for the respective isolates. Notably, no phytotoxicity symptoms were observed on ginger rhizomes treated with 25 % pyraclostrobin SC (Suspension Concentrate) or 0.3 % tetramycin AS (Aqueous Solution). Field trials with 25 % pyraclostrobin at a concentration of 250 mg/L achieved control efficacies of 81.90 % and 86.58 % in Laizhou and Laiwu, respectively. These findings lay the foundation for optimized antifungal agent application and enhanced management strategies for ginger rhizome rot in agricultural practice.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"202 ","pages":"Article 107539"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145956699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Development and application of a loop-mediated isothermal amplification assay for early detection of Golovinomyces tabaci in tobacco 环介导等温扩增法在烟草中早期检测烟草绿弧菌的建立与应用
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2026-04-01 Epub Date: 2025-12-10 DOI: 10.1016/j.cropro.2025.107518
Shuhe Wang , Mengyu Zhang , Jia Li , Yebin Kang
{"title":"Development and application of a loop-mediated isothermal amplification assay for early detection of Golovinomyces tabaci in tobacco","authors":"Shuhe Wang ,&nbsp;Mengyu Zhang ,&nbsp;Jia Li ,&nbsp;Yebin Kang","doi":"10.1016/j.cropro.2025.107518","DOIUrl":"10.1016/j.cropro.2025.107518","url":null,"abstract":"<div><div>Tobacco powdery mildew, caused by <em>Golovinomyces tabaci</em>, is one of the major fungal diseases causing severe yield losses. Early pathogen detection is crucial for timely fungicide application, reducing usage and promoting sustainable disease management. In this study, we developed a loop-mediated isothermal amplification (LAMP) assay targeting the beta-tubulin (<em>TUB2</em>) gene of <em>G. tabaci</em>, utilizing hydroxynaphthol blue (HNB) for visual detection. The assay specifically detected <em>G. tabaci</em> isolates without cross-reactivity with seven other common tobacco fungal pathogens. Key reaction components and conditions were optimized, resulting in a final system using 0.6 mM dNTPs, 0.2 mM HNB, 1.6 μM inner primers (FIP/BIP), 0.2 μM outer primers (F3/B3), and 2 mM Mg<sup>2+</sup>, incubated at 65 °C for 40 min. This optimized LAMP assay demonstrated high sensitivity, detecting as little as 10 fg/μL of <em>G. tabaci</em> genomic DNA, which was 10,000 times more sensitive than conventional PCR using the same outer primers. Crucially, the assay successfully detected <em>G. tabaci</em> in inoculated tobacco leaves at 3 days post-inoculation (dpi), prior to visible symptom onset (6 dpi). This is the first reported LAMP assay for <em>G. tabaci</em>, providing a rapid, specific, sensitive method that requires minimal laboratory infrastructure for the early field diagnosis of tobacco powdery mildew. This assay enables farmers and extension workers to rapidly detect <em>G. tabaci</em> in the field, facilitating more targeted applications of fungicides.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"202 ","pages":"Article 107518"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145732405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Susceptibility to eight common chemical insecticides in Helicoverpa zea populations from the southern United States 美国南部玉米Helicoverpa zea种群对8种常用化学杀虫剂的敏感性
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2026-04-01 Epub Date: 2025-12-09 DOI: 10.1016/j.cropro.2025.107517
Bhavana Patla , Tiago Silva , Shucong Lin , Graham P. Head , Francis P.F. Reay-Jones , Xinzhi Ni , Lina Bernaola , Sebe Brown , Don Cook , James Villegas , Jeffrey A. Davis , Fangneng Huang
{"title":"Susceptibility to eight common chemical insecticides in Helicoverpa zea populations from the southern United States","authors":"Bhavana Patla ,&nbsp;Tiago Silva ,&nbsp;Shucong Lin ,&nbsp;Graham P. Head ,&nbsp;Francis P.F. Reay-Jones ,&nbsp;Xinzhi Ni ,&nbsp;Lina Bernaola ,&nbsp;Sebe Brown ,&nbsp;Don Cook ,&nbsp;James Villegas ,&nbsp;Jeffrey A. Davis ,&nbsp;Fangneng Huang","doi":"10.1016/j.cropro.2025.107517","DOIUrl":"10.1016/j.cropro.2025.107517","url":null,"abstract":"<div><div>Larvae of <em>Helicoverpa zea</em> are highly destructive lepidopteran pests that damage a wide range of field crops and vegetables across North America. Transgenic <em>Bacillus thuringiensis</em> (Bt) cotton and maize have been employed extensively since 1996 to manage <em>H. zea</em> infestations in the U.S. However, the insect has recently developed widespread resistance to Cry1 and Cry2 Bt proteins, leading to increased <em>H. zea</em> infestations and more frequent insecticide applications in cotton to control the pest. This study investigated the susceptibility of 17 populations of <em>H. zea</em> collected from six southern U.S. states in 2023 and 2024 to eight common insecticides: acephate, diflubenzuron, λ-cyhalothrin, spinosad, indoxacarb, methoxyfenozide, novaluron, and chlorantraniliprole. Relative to a laboratory reference strain, the field-collected populations were still susceptible to acephate, spinosad, and chlorantraniliprole. Most of the field populations exhibited low to moderate levels of resistance to diflubenzuron (1.9- to 7.8-fold), indoxacarb (1.6- to 12.9-fold), and methoxyfenozide (1.4- to 31.0-fold), while some populations had high levels of resistance to λ-cyhalothrin (up to &gt;51.9-fold) and novaluron (up to 141.8-fold). There were no correlations in the LC<sub>50</sub> values among the insecticides to which <em>H. zea</em> has developed resistance. Given the uncertain future of acephate for agricultural use, the documented susceptibility of <em>H. zea</em> to chlorantraniliprole and spinosad offers options for managing <em>H. zea</em> and mitigating Bt/chemical resistance in the southern U.S.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"202 ","pages":"Article 107517"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145732406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Colletotrichum aenigma causes anthracnose disease of Ficus carica L. in China 炭疽杆菌引起中国无花果炭疽病
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2026-04-01 Epub Date: 2025-12-21 DOI: 10.1016/j.cropro.2025.107528
Yu-kun Qi , Wen-zhang Liu , Feng-ying Han , Wen-cheng Zhu , Shi-jun Sun , Qing-hai Wang , Ling-xi Zhou
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