Pest Management Science最新文献_第6页

'Candidatus Liberibacter asiaticus' infection alters the reflectance profile in asymptomatic citrus plants. 无症状柑橘类植物感染'亚洲自由杆菌'会改变其反射率曲线。

IF 3.8 1区农林科学

Pest Management Science Pub Date : 2024-11-05 DOI: 10.1002/ps.8528

Julia Ga Vieira, Emile Dr Santana, Fagner G Conceição, Fernando Henrique Iost Filho, Juliano B de Pazini, Roberta Rodrigues, Pedro T Yamamoto

{"title":"'Candidatus Liberibacter asiaticus' infection alters the reflectance profile in asymptomatic citrus plants.","authors":"Julia Ga Vieira, Emile Dr Santana, Fagner G Conceição, Fernando Henrique Iost Filho, Juliano B de Pazini, Roberta Rodrigues, Pedro T Yamamoto","doi":"10.1002/ps.8528","DOIUrl":"https://doi.org/10.1002/ps.8528","url":null,"abstract":"Background: Huanglongbing (HLB) is the primary and most destructive disease affecting citrus, caused by a pathogen transmitted by an insect vector, Diaphorina citri. There are no curative methods for the disease, and rapid and accurate methods are needed for early detection in the field, even before symptoms appear. These will facilitate the faster removal of infected trees, preventing the spread of the bacteria through commercial citrus orchards.Results: It was possible to determine ranges of hyperspectral bands that demonstrated significant differences in relative reflectance between treatments consisting of healthy and infected plants from the first days of evaluation, when plants infected with 'Candidatus Liberibacter asiaticus' (CLas) were still in the asymptomatic stage of the disease. From the Week 2 of evaluation [58 days after infection (DAI) of plants] until the last week, spectral differences were detected in the red edge region (660-750 nm). From the Week 6 onwards (86 DAI), spectral differences between healthy and symptomatic plants were observed in bands close to the visible region (520-680 nm).Conclusion: Spectral differences were detected in the leaves of C. sinensis infected by CLas before the appearance of symptoms, making it feasible to use the hyperspectral sensor to monitor the disease. Our results indicate the need for future studies to validate the use of hyperspectral sensors for managing and detecting HLB in commercial citrus orchards, contributing to the integrated management of the disease. © 2024 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142575234","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

Superior target genes and pathways for RNAi-mediated pest control revealed by genome-wide analysis in the beetle Tribolium castaneum. 通过对甲虫Tribolium castaneum的全基因组分析，发现RNAi介导的害虫控制的优良目标基因和途径。

IF 3.8 1区农林科学

Pest Management Science Pub Date : 2024-11-05 DOI: 10.1002/ps.8505

Benjamin Buer, Jürgen Dönitz, Martin Milner, Sonja Mehlhorn, Claudia Hinners, Janna Siemanowski-Hrach, Julia K Ulrich, Daniela Großmann, Doga Cedden, Ralf Nauen, Sven Geibel, Gregor Bucher

{"title":"Superior target genes and pathways for RNAi-mediated pest control revealed by genome-wide analysis in the beetle Tribolium castaneum.","authors":"Benjamin Buer, Jürgen Dönitz, Martin Milner, Sonja Mehlhorn, Claudia Hinners, Janna Siemanowski-Hrach, Julia K Ulrich, Daniela Großmann, Doga Cedden, Ralf Nauen, Sven Geibel, Gregor Bucher","doi":"10.1002/ps.8505","DOIUrl":"https://doi.org/10.1002/ps.8505","url":null,"abstract":"Background: An increasing human population, the emergence of resistances against pesticides and their potential impact on the environment call for the development of new eco-friendly pest control strategies. RNA interference (RNAi)-based pesticides have emerged as a new option with the first products entering the market. Essentially, double-stranded RNAs targeting essential genes of pests are either expressed in the plants or sprayed on their surface. Upon feeding, pests mount an RNAi response and die. However, it has remained unclear whether RNAi-based insecticides should target the same pathways as classic pesticides or whether the different mode-of-action would favor other processes. Moreover, there is no consensus on the best genes to be targeted.Results: We performed a genome-wide screen in the red flour beetle to identify 905 RNAi target genes. Based on a validation screen and clustering, we identified the 192 most effective target genes in that species. The transfer to oral application in other beetle pests revealed a list of 34 superior target genes, which are an excellent starting point for application in other pests. Gene ontology (GO) and Kyoto encyclopedia of genes and genomes (KEGG) analyses of our genome-wide dataset revealed that genes with high efficacy belonged mainly to basic cellular processes such as gene expression and protein homeostasis - processes not targeted by classic insecticides.Conclusion: Our work revealed the best target genes and target processes for RNAi-based pest control and we propose a procedure to transfer our short list of superior target genes to other pests. © 2024 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142575245","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

Control efficacy of Bt-Cry1Ab maize (event DBN9936) against Ostrinia furnacalis (Guenée) in Sichuan Province, China. Bt-Cry1Ab 玉米（事件 DBN9936）在中国四川省对 Ostrinia furnacalis (Guenée) 的防治效果。

IF 3.8 1区农林科学

Pest Management Science Pub Date : 2024-11-05 DOI: 10.1002/ps.8520

Limei He, Yatao Zhou, Wenxian Wu, Ling Wang, Qichang Yang, Gemei Liang, Kongming Wu

{"title":"Control efficacy of Bt-Cry1Ab maize (event DBN9936) against Ostrinia furnacalis (Guenée) in Sichuan Province, China.","authors":"Limei He, Yatao Zhou, Wenxian Wu, Ling Wang, Qichang Yang, Gemei Liang, Kongming Wu","doi":"10.1002/ps.8520","DOIUrl":"https://doi.org/10.1002/ps.8520","url":null,"abstract":"Background: The Asian corn borer (ACB), Ostrinia furnacalis (Guenée), is a major pest restricting maize production in Asia. The Chinese government has approved the commercial planting of Bt-Cry1Ab maize (event DBN9936), but its control potential against the ACB in southern regions remains unclear. This study evaluated the sensitivity of ACB to Cry1Ab protein expressed in Bt-Cry1Ab maize and determined the control efficacy of Bt-Cry1Ab maize against the ACB in Sichuan Province, a major maize-producing region in southern China, based on pilot planting in the field, and larval feeding bioassays in the field and laboratory.Result: The Cry1Ab protein contents in different tissues of Bt-Cry1Ab maize ranged from 31.20-88.27 μg g-1. The range of median lethal concentrations (LC50) and median growth inhibitory concentration (GIC50) values of Cry1Ab protein expressed in Bt-Cry1Ab maize against ACB larvae were 0.036-0.109 μg mL-1 and 0.002-0.018 μg mL-1, respectively. The first and fourth instar ACB larvae were unable survive feeding on different tissues of Bt-Cry1Ab maize plants. Field experiments conducted from 2023 to 2024 indicated that the number of ACB larvae per 100 plants, plant damage rate, leaf damage rate, male ear damage rate, female ear damage rate, and stalk damage rate in the Bt-Cry1Ab maize fields were reduced by 95.36% ± 2.17%, 83.98% ± 1.73%, 89.45% ± 1.50%, 100.00% ± 0.00%, 69.79% ± 4.88% and 100.00% ± 0.00%, respectively, compared to conventional maize fields.Conclusion: The ACB population in Sichuan Province, China is sensitive to Cry1Ab expressed in Bt-Cry1Ab maize (event DBN993). Planting Bt-Cry1Ab maize efficiently reduces the population of ACB larvae and the percentage of damaged maize plants, and has great application potential in the integrated pest management of the ACB in Sichuan Province, China. © 2024 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142575239","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

Rapid estimation of carbon footprints in agrochemical development: correlation of process mass intensity with CO₂ emissions. 快速估算农用化学品开发过程中的碳足迹：工艺质量强度与二氧化碳排放量的相关性。

IF 3.8 1区农林科学

Pest Management Science Pub Date : 2024-11-04 DOI: 10.1002/ps.8511

John Rohanna, Audra Tenzeldam, Robin Jenkins, Yuan Li, Abe Schuitman

{"title":"Rapid estimation of carbon footprints in agrochemical development: correlation of process mass intensity with CO2 emissions.","authors":"John Rohanna, Audra Tenzeldam, Robin Jenkins, Yuan Li, Abe Schuitman","doi":"10.1002/ps.8511","DOIUrl":"https://doi.org/10.1002/ps.8511","url":null,"abstract":"Background: The agricultural sector faces a challenge in balancing increasing food demand while minimizing environmental impacts. Crop protection products are crucial for achieving high crop yields and ensuring food security. However, life cycle assessment (LCA), the standard framework for evaluating environmental impact, is time-consuming and costly, especially during early product development. To address this, a novel tool correlating process mass intensity (PMI) with greenhouse gas (GHG) emissions has been developed as a streamlined alternative.Results: A strong linear correlation (R2 = 0.95) was identified between PMI and product GHG emissions, enabling rapid carbon footprint estimation using simplified PMI data. The model was validated using 13 small molecule active ingredients (AIs), showing a mean absolute error (MAE) of 55 g CO₂/kg AI and a root mean square error (RMSE) of 64 kg CO₂/kg AI. Residual analysis demonstrated random distribution, suggesting reliable predictions.Conclusion: The PMI-based tool provides rapid, accurate estimates of product carbon footprint (PCF), supporting early-stage decision-making in research and development for agrochemical processes. Its simplicity makes it applicable across various chemical sectors and valuable for sustainability efforts. © 2024 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142567140","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

Regulation of melanization in aphids by parasitoid wasp venom proteins enhances mummification. 寄生蜂毒液蛋白对蚜虫黑色素化的调控可促进木乃伊化。

IF 3.8 1区农林科学

Pest Management Science Pub Date : 2024-11-04 DOI: 10.1002/ps.8503

Jin Zhao, Zheng-Wu Wang, Guangmao Shen, Die Hu, Yi Zhong, Chao Ye, Jin-Jun Wang

{"title":"Regulation of melanization in aphids by parasitoid wasp venom proteins enhances mummification.","authors":"Jin Zhao, Zheng-Wu Wang, Guangmao Shen, Die Hu, Yi Zhong, Chao Ye, Jin-Jun Wang","doi":"10.1002/ps.8503","DOIUrl":"https://doi.org/10.1002/ps.8503","url":null,"abstract":"Background: Interactions between parasitic insects and their hosts demonstrate the complexity of evolutionary processes. Specifically, the parasitoid wasp Aphidius ervi manipulates its host, the pea aphid Acyrthosiphon pisum, through strategic venom injection to enhance mummification. This study explores how this venom affects the aphid's immune system, particularly targeting the activity of the phenoloxidase (PO) enzyme.Results: Following the injection of venom from A. ervi, significant changes were observed in the expression of immune-related genes in A. pisum, especially notable expression changes of ApPPOs and a reduction of PO activity. Multi-omics sequencing identified 74 potential venom proteins in the venom gland of A. ervi, including serine protease homolog 1 (AeSPH1) and serine protease inhibitor (AeSPN1), hypothesized to regulate PO activity. The injection of recombinant protein AeSPH1 and AeSPN1 into the A. pisum hemocoel selectively reduced the expression of ApPPO1, without affecting ApPPO2, and effectively suppressed melanization. Moreover, RNAi targeting AeSPH1 significantly reduced the mummification rate in A. pisum population parasitized by A. ervi.Conclusion: Our findings clarify the complex biochemical mechanisms underlying host-wasp interactions and highlight potential avenues for developing targeted biological control strategies. © 2024 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142567141","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 miR-31b targets arylsulfatase B to regulate the ovarian development of Bactrocera dorsalis. miR-31b以芳基硫酸酯酶B为靶标，调控背带蝠的卵巢发育。

IF 3.8 1区农林科学

Pest Management Science Pub Date : 2024-11-04 DOI: 10.1002/ps.8513

Shan-Shan Yu, Qiang Zhang, Li-Yuan Zheng, Qian-Ping Xie, Jin-Jun Wang, Wei Dou

{"title":"The miR-31b targets arylsulfatase B to regulate the ovarian development of Bactrocera dorsalis.","authors":"Shan-Shan Yu, Qiang Zhang, Li-Yuan Zheng, Qian-Ping Xie, Jin-Jun Wang, Wei Dou","doi":"10.1002/ps.8513","DOIUrl":"https://doi.org/10.1002/ps.8513","url":null,"abstract":"Background: Reproduction is the basis of insect population growth and evolution, and encompasses ovarian development, reproductive behavior, and fecundity. Bactrocera dorsalis is a globally significant agricultural pest that is subject to quarantine, with mated females that can lay over 3000 eggs. The post-transcriptional regulation of ovarian development remains unclear. Here, miR-31b is shown to be involved in regulating Bactrocera dorsalis ovarian development.Results: CRISPR/Cas9 was used to generate miR-31b loss-of-function mutations in Bactrocera dorsalis. The removal of miR-31b resulted in severely impaired ovarian development in adults, with phenotypes that included dramatically reduced egg production and hatching rates. The relationship between miR-31b and its target gene arylsulfatase B (ARSB) was subsequently identified using the methods of bioinformatics, transcriptomic sequencing, quantitative polymerase chain reaction (qPCR), RNA pull-down and dual-luciferase reporter assay. Finally, miR-31b was confirmed to bind the target gene arylsulfatase B to affect metabolism and thereby further hindered ovarian development of Bactrocera dorsalis.Conclusion: Overall, these results provide new insights into molecular mechanisms at the post-transcriptional level in regulating ovarian development and insect reproduction, consequently providing potential targets to control arthropod pests through the reproductive strategy. © 2024 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142567142","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

Antifungal activity mechanisms of venturicidin A against Botrytis cinerea contributes to the control of gray mould. 文曲星 A 对灰霉病菌的抗真菌活性机制有助于控制灰霉病。

IF 3.8 1区农林科学

Pest Management Science Pub Date : 2024-10-31 DOI: 10.1002/ps.8515

Lifang Hu, Xiaomin Dong, Ruimin Jia, Jing Chen, Shang Cao, Lin Tian, Yan Sun, Yang Wang

{"title":"Antifungal activity mechanisms of venturicidin A against Botrytis cinerea contributes to the control of gray mould.","authors":"Lifang Hu, Xiaomin Dong, Ruimin Jia, Jing Chen, Shang Cao, Lin Tian, Yan Sun, Yang Wang","doi":"10.1002/ps.8515","DOIUrl":"https://doi.org/10.1002/ps.8515","url":null,"abstract":"Background: Gray mould caused by Botrytis cinerea, an airborne phytopathogenic pathogen, infects many economically important fruits and vegetables. Secondary metabolic products of microorganisms are potential resources for developing fungicide alternatives. Venturicidin A (VentA) is produced by a biocontrol strain Streptomyces pratensis S10. Although a broad spectrum of antifungal activity has been reported for VentA, little is known about its antifungal mechanisms against B. cinerea.Results: Venturicidin A exhibited a strong hyphal inhibition of B. cinerea with an EC50 (effective concentration causing 50% growth inhibition) value of 1.08 μg mL-1 on PDA medium. Different concentrations of VentA inhibited spore germination with an inhibition rate of 49-86%. Venturicidin A also displayed protective and curative activity against the development of B. cinerea infection on tomato fruit, reducing disease incidence by ≈28-78%. Additionally, VentA effectively reduced the disease index and lesion length of gray mould on tomato plant. Meanwhile, VentA downregulated the expression levels of six genes related to pathogenicity in B. cinerea. As observed by scanning electron microscopy, B. cinerea spores and hyphae are abnormal after treatment with VentA. Propidium iodide staining revealed that VentA destroyed cell membrane integrity, causing cytoplasmic leakage. Furthermore, VentA induced accumulation of reactive oxygen species and upregulated the genes encoding subunits for NADPH oxidase in B. cinerea.Conclusion: This study indicated that VentA displayed strong inhibitory activity against B. cinerea and effectively reduced gray mould disease. Thus, VentA has the potential to manage gray mould caused by B. cinerea. © 2024 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142542415","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

EPSPS gene amplification in a glyphosate-resistant population of Italian ryegrass (Lolium multiflorum) from Oregon. 俄勒冈州抗草甘膦意大利黑麦草（Lolium multiflorum）群体中的 EPSPS 基因扩增。

IF 3.8 1区农林科学

Pest Management Science Pub Date : 2024-10-31 DOI: 10.1002/ps.8508

Victor Hv Ribeiro, Pete Berry, Tim B Creed, Judit Barroso, Carol A Mallory-Smith, Joseph P Gallagher

{"title":"EPSPS gene amplification in a glyphosate-resistant population of Italian ryegrass (Lolium multiflorum) from Oregon.","authors":"Victor Hv Ribeiro, Pete Berry, Tim B Creed, Judit Barroso, Carol A Mallory-Smith, Joseph P Gallagher","doi":"10.1002/ps.8508","DOIUrl":"https://doi.org/10.1002/ps.8508","url":null,"abstract":"Background: Lolium multiflorum Lam. (Italian ryegrass, annual ryegrass) is both a weed and a crop in Oregon. Because it is commonly managed using chemical controls, herbicide-resistant populations have evolved within the seed production region. A glyphosate-resistant population was identified in Yamhill County, Oregon, in a fallow field previously cropped with perennial ryegrass.Results: Dose-response studies showed that the glyphosate-resistant population, OR12, was nine-fold more resistant to glyphosate than the susceptible population. No EPSPS amino acid substitutions known to confer glyphosate resistance were observed via gene sequencing. Quantitative polymerase chain reaction (qPCR) of genomic DNA revealed a mean 30-fold increase in EPSPS gene copies in the OR12 population. Biomass after glyphosate treatment was correlated with EPSPS gene copy number of individual plants.Conclusion: This is the first known report of glyphosate resistance associated with EPSPS gene amplification to arise in L. multiflorum populations in Oregon. © 2024 Society of Chemical Industry. This article has been contributed to by U.S. Government employees and their work is in the public domain in the USA.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142542416","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

Successful management of Stegasta bosqueella (Lepidoptera Gelechiidae) in peanut with an attract-and-kill strategy. 采用诱杀策略成功治理花生中的 Stegasta bosqueella（鳞翅目 Gelechiidae）。

IF 3.8 1区农林科学

Pest Management Science Pub Date : 2024-10-31 DOI: 10.1002/ps.8512

Jose Ricardo Lima Pinto, Odair Aparecido Fernandes

{"title":"Successful management of Stegasta bosqueella (Lepidoptera Gelechiidae) in peanut with an attract-and-kill strategy.","authors":"Jose Ricardo Lima Pinto, Odair Aparecido Fernandes","doi":"10.1002/ps.8512","DOIUrl":"https://doi.org/10.1002/ps.8512","url":null,"abstract":"Background: Rednecked Peanutworm Stegasta bosqueella control is primarily achieved using broad spectrum insecticides targeting the larval stage. However, due to inconspicuous behavior and limited movement of the larvae within the peanut crop, foliar insecticides alone have been insufficient to reduce S. bosqueella populations. The poor effectiveness of chemical products, combined with the necessity of frequent fungicide applications, leads to an overuse of pesticides in peanuts. Given the challenges associated with targeting the larval stage, alternative strategies are needed to improve pest management. Our hypothesis was that by targeting the adult stage, the most mobile stage of the insect, we could decrease the levels of S. bosqueella damage in peanut crops while being less aggressive to the environment.Results: Over 2 years, our study demonstrated that semiochemical-food-based attract and kill treatments significantly reduced the number of S. bosqueella adults captured per food-baited trap per week. This reduction was associated with fewer larvae and decreased plant damage compared to untreated control areas. To optimize this strategy, several key practices must be followed: (a) Prompt treatment application (chemical associated with attractant) should be applied upon detection of an increase in adult trap catches; (b) Timing applications to coincide with peak adult movement (6 pm to 9 pm); and (c) Applying treatments strategically on two peanut rows, 50 m apart, per hectare.Conclusions: The attract-and-kill method can effectively reduce S. bosqueella damage in peanut crops, and has the potential to target other moth species that act as peanut defoliators. © 2024 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142556554","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 herbicidal activity and mechanism of Talaromyces purpureogenus CY-1 metabolites. Talaromyces purpureogenus CY-1 代谢物的除草活性和机理。

IF 3.8 1区农林科学

Pest Management Science Pub Date : 2024-10-31 DOI: 10.1002/ps.8510

Chunping Yang, Yuan Lu, Yinhua Yang, Jiayun Hu, Yifen Yang, Min Zhang, Guoshu Gong, Huabao Chen, Chunxian Jiang

{"title":"The herbicidal activity and mechanism of Talaromyces purpureogenus CY-1 metabolites.","authors":"Chunping Yang, Yuan Lu, Yinhua Yang, Jiayun Hu, Yifen Yang, Min Zhang, Guoshu Gong, Huabao Chen, Chunxian Jiang","doi":"10.1002/ps.8510","DOIUrl":"https://doi.org/10.1002/ps.8510","url":null,"abstract":"Background: Studies have shown that Talaromyces can produce a large number of secondary metabolites in its metabolic process, many of which have good insecticidal, antibacterial, antitumor, antiviral and other biological activities. In order to explore the herbicidal activity and mechanism of Talaromyces purpureogenus CY-1, we determined the inhibitory effect of the fermentation broth of the CY-1 strain on weeds, identified the major active components, and further investigated the herbicidal mechanism.Result: The results showed that CY-1, with IC50 values of 5.40 g/L and 4.39 g/L, respectively, exhibited good herbicidal activity against Xanthium sibiricum and Amaranthus lividus. Spraying CY-1 strain fermentation broth on redroot pigweed resulted in plant protection efficiencies and fresh weight protection efficiencies of 83.7% and 87%, respectively. The active component identified in the broth was 2-(3-hydroxybenzoyloxy) acrylic acid. Treatment of Amaranthus lividus with 2-(3-hydroxybenzoyloxy) acrylic acid resulted in trends of increasing superoxide dismutase activity, peroxidase activity, respiratory rate, cytochrome oxidase activity, and soluble protein content, followed by a decrease. Peroxidase activity, relative conductance and malondialdehyde content gradually increased, while acetyl lactate synthase and glutamine synthetase initially decreased and gradually returned to normal. The soluble sugar content showed a gradual decrease.Conclusion: The findings of the present study indicate that 2-(3-hydroxybenzoyloxy) acrylic acid can induce oxidative stress in plants, damaging plant cell walls, weakening respiratory activity, inhibiting protein synthesis and sugar metabolism, ultimately leading to weed wilting and death. © 2024 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142556555","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