谢吉先 张雪梅 常蕾 蒋莹 冯梦诗 丁彬

摘要 采用等量33%咯菌·噻虫胺种衣剂包衣不同重量梯度的花生种仁，选用大面积常用包衣剂组合及空白处理作对照，研究33%咯菌·噻虫胺种衣剂对花生病虫害的防治效果。结果表明，包衣种子出苗率均高于空白对照，各包衣处理对花生根腐病和中后期花生蛴螬均具有一定防治效果，且随着单位体积包衣种子量减少，防治效果提高;各包衣处理对中后期花生叶斑病也有防治效果，但总体效果不够理想;以10 mL 33%咯菌·噻虫胺种衣剂包衣1 kg种仁处理增产效果最好，较大面积对照增产不显著;10 mL咯菌·噻虫胺种衣剂包衣1.5 kg种仁处理效果其次，较大面积对照组合减产不显著;其他处理较上述大面积对照处理减产均达极显著水平。

关键词 咯菌·噻蟲胺种衣剂;花生;病虫害;防治效果

中图分类号 S435.652  文献标识码 A  文章编号 0517-6611（2021）24-0165-03

doi：10.3969/j.issn.0517-6611.2021.24.039

Control Effect of Cadillac-thiamethylamine Seed Coat on Peanut Pest and Disease

XIE  Ji-xian1，ZHANG Xue-mei2，CHANG  Lei1 et al

（1.Taizhou Agricultural Science Institute，Jiangsu Academy of Agricultural Sciences，Taizhou，Jiangsu 225300;2.Taizhou No.2 Middle School，Taizhou， Jiangsu  225300）

Abstract Peanut kernels with different weight gradients were coated with the same amount of 33% pyrrole and thiamethoxam seed coating agent. A large area of common coating agent combination and blank treatment were selected as the control to study the control effect of 33% pyrrole and thiamethoxam seed coating agent on peanut  diseases and pests.The results showed that the seedling emergence rate of coated seeds was higher than that of the blank control. Each coating treatment had a certain control effect on peanut root rot and peanut grub in the middle and late stage，and the control effect increased with the decrease of the amount of coated seeds per unit volume.Each coating treatment also had control effect on peanut leaf spot in the middle and late stage，but the overall effect was not ideal; 1 kg kernel coated with 10 mL 33% pyrrolidine and thiamethoxam seed coating had the best yield increase effect，but the yield increase was not significant in large area control.The treatment effect of 10 mL pyrrolidine and thiamethoxam seed coating with 1.5 kg kernel was the second，and the yield reduction of large area control combination was not significant;the yield of other treatments decreased significantly compared with the above large-area control treatment.It is suggested to carry out large-area peanut demonstration of 33% pyrrole and thiamethoxam seed coating agent，and the dosage is 1.0-1.5 kg seed kernel per 10 mL.

Key words Cadillac-thiamethylamine seed coat;Peanut;Pest and disease;Control effect

基金项目 江苏省现代农业（特粮特经）产业技术体系花生创新团队（JATS〔2020〕262）;江苏省农业科技自主创新资金项目（CX（18）2015）。

作者简介 谢吉先（1963—），男，江苏泰兴人，研究员，从事花生新品种选育及高效配套技术研究。

收稿日期 2021-04-21

花生作为江苏省主要的特用经济作物，主要分布在徐州、连云港、泰州、南通等传统花生种植地区[1]。常年连作种植，花生田间根腐病、叶斑病和蛴螬虫害对花生田产生了很大危害，采用种衣剂防治花生病虫害[2-3]，具有省工节本、简便易行等优势。克百利-咯菌·噻虫胺种衣剂[4]由咯菌腈[5]和噻虫胺[6]组配而成，其中噻虫胺为第三代烟碱类杀虫剂，系吡虫啉[7]升级产品，理论上持效期更长，杀虫活性更好，对地下害虫防效更佳;组配咯菌腈抗菌剂，可以实现病虫兼控兼治的目标[8]。……