梨木虱是梨树的主要害虫之一,防治梨木虱的有效的方法是使用不同的杀虫剂。但由于长期使用杀虫剂,梨木虱产生了抗药性,防治效果明显降低,有的果园一年喷药十几次难以控制,在晋州市部分果园叶片被害率达70%以上,有15—20%的造成落叶。选择最有效的新型药剂防治梨木虱已成为当务之急。 Pear lice is one of the major pests of pear trees and the effective way to control pests is to use different pesticides. However, long-term use of insecticides, pear psylla resistance, the control effect was significantly reduced, and some orchards a year spraying a dozen times difficult to control, Jinju City, part of the orchard leaf damage rate of 70% or more, 15- 20% cause the leaves to fall. Choose the most effective new pesticide control pear psylops has become a top priority.