摘要
[目的]明确32%螺虫乙酯·依维菌素悬浮剂不同剂量对梨木虱的防治效果及对梨树和非靶标有益昆虫等的安全性,明确其适宜的施药时期、用量和方法。为田间应用提供科学依据。[方法]使用喷雾器将不同剂量32%螺虫乙酯·依维菌素悬浮剂均匀喷洒于受害植株各部位。[结果]对梨树进行喷药1次,15d后32%螺虫乙酯·依维菌素悬浮剂有效成分量53、64、80mg/kg对梨木虱防效效果均达到90%以上。[结论]32%螺虫乙酯·依维菌素悬浮剂有效成分量53~80mg/kg对梨木虱防效效果显著,建议推广使用。
[Aims] The study aims to verify field efficacy of spirotetramat · ivermectin 32% SC against Psylla Chinensis at different dosages and the safety of pear trees and non-target beneficial insectsand to clarify the appropriate application period, dosage and method, which can provide scientific basis for the application of pesticide in production and field.[Methods] Different doses of spirotetramat - ivermectin 32% SC were sprayed evenly on various parts of the affected plants using a sprayer.[Results] After 15 d after sprayed once, the control effects of spirotetramat · ivermectin 32% SC at 53,64,80 mg/kg were all above 90%.[Conclusions] The control efficacy of spirotetramat · ivermectin 32% SC at 53-80 mg/kg was excellent, which can be popularized in production.
作者
黄彤彤
苑士涛
李梦瑶
范凡
杨静然
魏国树
HUANG Tong-tong;YUAN Shi-tao;LI Meng-yao;FAN Fan;YANG Jing-ran;WEI Guo-shu(College of Plant Protection,Agricultural University of Hebei,Baoding 071001,Hebei,China;Bureau of Technical,Agricultural Bureau of Boye Country of Hebei Baoding,Baoding 073000,Hebei,China)
出处
《农药》
CAS
CSCD
北大核心
2019年第5期370-372,共3页
Agrochemicals
