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农药添加助剂“害立平”防治果树病虫害效果明显“害立平”是一种强力农药增效剂,按一定比例加入农药后可明显提高防治效果。1991~1993年我们进行了这方面尝试,结果如下。(1)防治苹果腐烂病:连续3年于休眠期2次(11月下旬和2月中、下旬)用50倍40...
Pesticide Additives “Harmony” Prevention and Control of Pests and Diseases of Pear Tree Obviously “Harlequin” is a potent pesticide synergist, which can obviously improve the control effect when pesticides are added in a certain proportion. In 1991 ~ 1993 we conducted this attempt, the result is as follows. (1) control of apple rot disease: 3 consecutive years in the dormant period 2 (late November and mid-February, late February) with 50 times 40 ...