摘要
为明确吡蚜酮对茶园假眼小绿叶蝉的田间防治效果,开展了50%吡蚜酮WG5000倍、4000倍、3000倍、50%吡蚜酮WG4000倍+10%联苯菊酯EC1500倍和10%吡虫啉WP1500倍等5个处理对假小绿叶蝉的田间防效试验。结果表明,供试药剂5个处理对假眼小绿叶蝉均有一定的防效,持效性稍好,但速效性较差,以药后7d的防效最佳。生产上建议在低龄若虫高峰期喷施50%吡蚜酮WG3000倍为宜。
Control efficacy of 50% Pymetrozine WG on Empoasca vitis was conducted in field trial. Results of 5 different treatment （50% Pymetrozine WG which was diluted 5000 times, 4000 times, 3000 times, 1：4000 dilution of 50% Pymetrozine WG＋1：1500 dilution of 10% bifenthrin EC, 1：1500 dilution of 10% imidacloprid） showed that all of above had a certain degree control effects on Empoasca vitis, and the lasting effect were slightly better, the quick effect were poor, the control effect after 7 days were the best. It was recommended which spraying 50% pymetrozine WG （ 1：3000 ） in the peak of the nymphae in the actual production.
出处
《茶叶科学技术》
2013年第1期10-12,共3页
Tea Science and Technology
