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分层施用呋喃丹防治怀山药蛴螬李泰荣，薛万琴，李光乐，廉淑英（河南省武陟县二铺营农技站４５４９５１）（河南省武陟县西陶乡政府４５４９８１）近年来，河南省武陟县怀山药发生蛴螬危害较重。据笔者调查了解，重点地块的虫口密度为３２只／ｍ２以上，最多处１ｍ２竟挖...
Layered application of carbofuran control of yam yam 螬 螬 Li Tairong, Xue Wanqin, Li Guangle, Lian Shuying (Erpuying Agricultural Station 454951, Wuyi County, Henan Province) (Government of Western Tao Township, Wuyi County, Henan Province 454981) In recent years, Yixian Huaiyin Yao serious harm. According to the author’s investigation, the density of the key block of insect population is 32 / m2 above, at most 1m2 actually dig ...