固氮作物紫云英苜蓿叶象甲药剂筛选试验初探  

Preliminary Screening Test on Hypera postica of Nitrogen Fixing Crop Astragalus sinicus L.

作　　者：周丹 盛玉莲 朱龙粉 李志鹏 沈迎春 ZHOU Dan;SHENG Yulian;ZHU Longfen;LI Zhipeng;SHEN Yingchun(Changzhou Wujin District Agricultural Technology Extension Center,Jiangsu Changzhou 213161,China;Changzhou Wujin District Agricultural and Rural Branch of Jiaze Town,Jiangsu Changzhou 213153,China;Academy of Agricultural Sciences of Jiangsu Province,Nanjing 210036,China)

机构地区：[1]常州市武进区农业技术推广中心,江苏常州213161 [2]常州市武进区嘉泽镇农业农村科,江苏常州213153 [3]江苏省农药总站,南京210036

出　　处：《现代农药》2021年第2期59-61,共3页MODERN AGROCHEMICALS

基　　金：江苏省农业三新工程项目(SXGC[2017]209、JATS[2018]199、JATS[2019]323);2017—2020年江苏省特经作物安全用药筛选与登记项目。

摘　　要：为有效防治危害紫云英的苜蓿叶象甲,笔者测定了5种杀虫剂对叶象甲的田间防治效果。结果表明,每667 m^(2)喷施10%联苯菊酯乳油30 mL防治苜蓿叶象甲幼虫,速效性和持效性优异,药后7 d和14 d的平均防效分别为92.2%和98.2%;喷施60 g/L乙基多杀菌素悬浮剂30 mL和4.5%高效氯氰菊酯乳油30 mL的防效次之,药后14 d平均防效分别为86.5%和69.8%;喷施10%虫螨腈悬浮剂50 mL防治苜蓿叶象甲速效性好,药后7 d平均防效为62.4%;喷施5.7%甲维盐水分散粒剂10 g持效性好,药后14 d平均防效为83.4%。Hypera postica is a kind of pest that harms Chinese milk vetch.For contolling of Hypera postica that harms milk vetch,we determined field control effects of 5 insecticides in Hypera postica.The results clearly showed that 10%bifenthrin EC 30 mL per 667 m^(2) could control larva of Hypera postica,and the contol effect was quick and lasting.The average control effect was 92.2%and 98.2%for 7 d and 14 d after spray,respectively.The effects of 60 g/L spinetoram SC 30 mL and 4.5%beta-cypermethrin EC 30 mL were next to 10%bifenthrin EC 30 mL.The average control effect was 86.5%and 69.8%for 14 d after spray,respectively.The effcet of 4.5%chlorfenapyr SC 50 mL was quick.The average control effect was 62.4%for 7 d after spray,and the effect of 5.7%emamectin benzoate WG 10 g was lasting,which the average control effect was 83.4%for 14 d after spray.

关 键 词：紫云英 苜蓿叶象甲 幼虫 防效 

分 类 号：S482.3[农业科学—农药学]