梨木虱化学防治试验

本试验对３种新型高效杀虫剂防治梨木虱进行试验研究。试验结果表明，百磷３号、甲基异柳磷和水胺硫磷对梨木虱均有较好的防治效果，施药后 １５ ｄ的防效分别为 ９３．３％、９２．４ ％和 ８９．４％。

Research of Prevention and Control of Pear Psylla (Psylla pyrisuga) in Pear

Three new types of insecticides with high efficiency were involved in this experiment. Results have shown that bailin-three, isofenphos-methyl and isocarbophos all had good results of prevention and control of pear psylla (Psylla pyrisuga) in pear. By 15 days after treatment, the controlling effects of three insecticides were 93. 3 %,92. 3 % and 89. 4 %,respectively.