4种药剂防治桃褐腐病的田间药效试验  

Feld Control Efficacy of Four Fungicides for Controlling Peach Brown Rot

作　　者：潘斌 盛桂林 王开峰 陆彦 沈迎春 Pan Bin;Sheng Guilin;Wang Kaifeng;Lu Yan;Shen Yingchun(Agricultural Service Center of Fenghuang Town,Zhangjiagang City,Zhangjiagang Jiangsu 215600,China;Institute for the Control of Agrochemicals Jiangsu Province,Nanjing Jiangsu 210036,China;Plant Protection and Plant Quarantine Station of Zhangjiagang,Zhangjiagang Jiangsu 215600,China)

机构地区：[1]张家港市凤凰镇农业服务中心,江苏张家港215600 [2]江苏省农药总站,江苏南京210036 [3]江苏省张家港市植保植检站,江苏张家港215600

出　　处：《农药科学与管理》2023年第5期52-55,共4页Pesticide Science and Administration

基　　金：姑苏乡土人才培养资助项目(苏市农人〔2021〕4号);江苏省特色作物安全用药筛选与登记项目(项目号2019-SJ-024,2020-SJ-023、2021-SJ-073)。

摘　　要：为筛选出有效防治桃褐腐病的高效杀菌剂,选择申嗪霉素、咪鲜胺、苯醚甲环唑、腈苯唑4种药剂进行田间小区防治试验。田间试验表明,申嗪霉素、咪鲜胺、苯醚甲环唑、腈苯唑对桃果实褐腐病都有一定的田间和采后防效,药后14 d(采摘前),1%申嗪霉素悬浮剂500倍液和24%腈苯唑悬浮剂2500倍液对桃褐腐病的病果率防效均为100%,显著高于450 g/L咪鲜胺水乳剂1000倍液和10%苯醚甲环唑水分散粒剂1000倍液的87.33%和86.93%防效;采后18 d,1%申嗪霉素悬浮剂500倍液、450 g/L咪鲜胺水乳剂1000倍液和10%苯醚甲环唑水分散粒剂1000倍液对褐腐病果率仍有较好的防效,防效为71.25%~80.83%,其次是24%腈苯唑悬浮剂2500倍液,防效为62.83%。综上,4种药剂都有控制桃褐腐病病果的应用潜力,其中申嗪霉素表现出较好的田间和采后防效。In order to screen out effective fungicides and biopesticides to control peach brown rot,shenqinmycin,prochloraz,difenoconazole and fenbuconazole were selected for field control efficacy trials.The results showed that all four fungicides had certain control field and post-harvest effects on peach brown rot.After 14 day after of treatment(prior to harvest),shenqinmycin1%SC(500-fold dilution)and fenbuconazole24%SC(2500-fold dilution)provided the best control on brown rot,with the control efficacy of 100%,significantly higher than 87.33%and 86.93%achieved by prochloraz450 g/L EW(1000-fold dilution)and difenoconazole10%WG(1000-fold dilution),respectively.After 18 days postharvest,shenqinmycin 1%SC(500-fold dilution),prochloraz 450 g/L EW(1000-fold dilution)and difenoconazole 10%WG(1000-fold dilution)still had good control effect on fruit rate of brown rot,with the control efficacy ranging from 71.25~80.83%,followed by fenbuconazole 24%SC(2500-fold dilution),with the control effect of 62.83%.In conclusion,all four fungicides showed potential for controlling peach brown rot,among which shenqinmycin showed better field and postharvest control effects.

关 键 词：桃褐腐病 杀菌剂 田间药效试验 采后防效 

分 类 号：S482.2[农业科学—农药学] S481.9[农业科学—植物保护]