即墨市麦蚜近年发生轻主要原因是生态控制的分析

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1995~2004年10年间,即墨市麦蚜的防治由大量用药减为不用药,防治次数由每年2~3次减为0次。近3年,全市很少用药防治,麦蚜发生程度由大发生减为小发生,天敌的储存数量明显增加。实践证明,生态控制的重要性。 During the 10 years from 1995 to 2004, the prevention and treatment of wheat aphid in Jimo reduced from a large amount of medication to no medication, and the number of prevention and treatment was reduced from 2 to 3 times to 0 times per year. Nearly three years, the city seldom medication control, the occurrence of wheat aphids from a large occurrence to a small occurrence, the number of natural enemies increased significantly. Practice has proved that the importance of ecological control.
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