James Adero Obar, Emmah Kwoba, Esther Omosa, Wellington Ekaya, Eric Fevre, Joshua Onono
{"title":"Analysis of alpha-cypermethrin pesticide residues along the value chain of tomato from Laikipia County, Kenya","authors":"James Adero Obar, Emmah Kwoba, Esther Omosa, Wellington Ekaya, Eric Fevre, Joshua Onono","doi":"10.1002/ps.70215","DOIUrl":"https://doi.org/10.1002/ps.70215","url":null,"abstract":"In Kenya, the extensive use of agrochemicals in fruits and vegetable farming raises concerns about pesticide residues in agricultural products including tomato fruits. There are still a number of highly hazardous pesticides including mancozeb, glyphosate acid, chlorpyrifos, acephate and cypermethrin amongst many others that are still used in Kenya despite being banned in Europe due to harmful effects on humans and other animals. This study aimed to evaluate the residual levels of cypermethrin pesticide in locally produced tomato in Laikipia County, Kenya. Also, the study identified some practices that lead to pesticide residual levels in tomatoes. A total of 82 tomato samples were analyzed for pesticide residues following extraction using QuEChERS method and analyzed for the presence of synthetic pyrethroids (<i>cis-</i> and <i>trans-</i>alpha-cypermethrins) pesticides using gas chromatography–mass spectrometry (GC–MS).","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"40 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145127353","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}
{"title":"Lightweight crop disease identification network based on frequency domain and channel mixing attention and cross-scale semantic fusion","authors":"Tiancan Jian, Haixia Qi, Riyao Chen, Yu Liang, Guangsheng Liang, Xiwen Luo","doi":"10.1002/ps.70170","DOIUrl":"https://doi.org/10.1002/ps.70170","url":null,"abstract":"Accurate identification of crop diseases is essential for enhancing agricultural productivity; however, it encounters challenges arising from complex field conditions and the constraints of deploying on resource-limited devices. This study aims to develop a lightweight yet accurate framework, referred to as FCDRNet, which integrates feature enhancement and compression techniques to facilitate practical deployment in the field.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"29 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145127351","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}