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观察表明,二斑叶螨危害多种果树叶片,一年中其变化规律可分为出蛰期、缓慢增殖期、扩散蔓延期、猖獗发生期、衰退期和入蛰期。抓住苹果开花前和谢花后7 ~10 天这两个最佳防治时期,使用0 .3 % 敌虱螨或卵虫螨克等药剂基本能控制其发生发展。
Observation shows that two-spotted spider mite endanger many leaves of fruit trees, its variation can be divided into a hibernation period, slow proliferation period, spreading spread period, rampant period, recession period and into the hibernation period. Grasp the apple before flowering and thank you 7 to 10 days after the best control of these two periods, the use of 0. 3% of the enemy louse mite or egg pest mites grams and other agents can basically control the occurrence and development.