格桑花等农药对桑螟防治效果的比较试验

Comparative Tests of Pesticides on Mulberry Pyralid Prevention Effect

桑螟在我市一年发生四代,第四代桑螟与一秋蚕生产重叠,通过本试验,筛选出了格桑花、桑保灭多威等对桑螟防治效果好,对家蚕安全间隔期短的农药,宜推广应用于秋蚕发种前的桑园治虫。

The mulberry pyralid would happen 4 times in one year in Dongtai, and the fourth generation of mulberry py- ralid would be overlapped with the autumn silkworm production. According to the experiment in this article, Ge Sang Hua and Sang Bao Mie Duo Wei were the pesticides with better effect on mulberry pyralid prevention and shorter safety interval for silkworm. They should be popularized and applied in mulberry field insects prevention before autumn silk- worln.