摘要
为比较0.5%苦参碱AS、0.3%印楝素EC、1%苦参·印楝素EC和16000 IU/mg苏云金杆菌WP对绿春县茶毛虫的防效差异,开展随机区组试验,在茶毛虫低龄幼虫期开始施药.结果表明,施药后7 d,1%苦参·印楝素EC和16000 IU/mg苏云金杆菌WP的虫口减退率分别为75.73%和73.67%,防效分别为79.61%和77.88%,这两种生物农药的虫口减退率和防效均显著高于0.5%苦参碱AS和0.3%印楝素EC,表明其对茶毛虫具有较好的防治效果.
In order to compare the control efficacy differences between 0.5%matrine AS,0.3%azadirachtin EC,and 1%matrine-azadirachtin EC,16000 IU/mg Bacillus thuringiensis WP against tea caterpillars,a random field trial was carried out with bio-pesticides at the larval stage of the tea caterpillar.The results showed that 7 days after spraying of 1%matrine-azadirachtin EC and 16000 IU/mg Bacillus thuringiensis WP,the insect decline rate were 75.73%and 73.67%,respectively,and the control effects were 79.61%and 77.88%,respectively,which were obviously higher than those of 0.5%matrine AS and 0.3%azadirachtin EC,and they are suitable for biological control of tea caterpillars in Lvchun County.
作者
马蕊
白阿先
卢木朴
MA Rui;BAI Axian;LU Mupu(Pesticide and Machinery Department,Honghe State Phytosanitary and Plant Protection Station,Mengzi,Yunnan,China 661100;Technology Promotion Unit,Lvchun County Agricultural Technology Promotion Center,Lvchun,Yunnan,China 662599;Pesticide and Machinery Department,Lvchun County Phytosanitary and Plant Protection Station,Lvchun,Yunnan,China 662599)
出处
《昆明学院学报》
2022年第3期53-56,共4页
Journal of Kunming University
关键词
绿春县
茶毛虫
生物农药
防治效果
Lvchun county
tea caterpillar
biological pesticide
control effect
