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为建立无公害梨园防治体系提供参考,甘肃省张掖市林业科学技术推广站联合张掖市寺大隆林场技术人员采用浸虫法研究了1.3%苦参碱水剂1000倍液、7.5%鱼藤酮乳油1500倍液、1.5%除虫菊素水乳剂800倍液、0.5%藜芦碱水剂600倍液等4个处理对梨木虱和梨蚜(梨二叉蚜)的防治效果。试验不同药剂对梨木虱的防治效果结果表明,对梨木虱药后24小时的
In order to establish a pollution-free pear orchard control system, Zhangye City, Gansu Province forestry science and technology promotion station combined Zhangye City Temple Dalong forest field using the method of dipping insects 1.3% matrine 1000 times, 7.5% rotenone 1500 The results showed that the control effect of Pyricularia oryzae on Pyricularia oryzae was better than that on Pyricularia oryzae. Test of different agents on the prevention and control of pear psylla The results show that pear on the drug after 24 hours