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1983年12月到1984年4月间在北京中山公园温室盆栽花卉(一串红)上成功地进行了释放智利小植绥螨(Phytoseiulus persimilis A.H.)防治二斑叶螨(Tetranychus urticae Koch)的试验。按益、害螨1:10或1:20的比例分别释放两次。每隔7—10天检查一次,释放后3—4周叶螨数显著下降,以后一直维持在大约每叶1头以下。对照区在叶螨高峰期每叶平均126头。施药区虽经6次农药防治,在高峰期平均每叶叶螨112头。释放区花卉色泽和花朵大小也较对照区和施药区的显著为好。
Trials of Tetranychus urticae Koch on Phytoseiulus persimilis AH were successfully conducted in pot flowers (Saxiang Red) in greenhouse of Zhongshan Park, Beijing from December 1983 to April 1984. . According to benefit, pest mite 1:10 or 1:20 were released twice. Check every 7-10 days, after 3-4 weeks of release spider mite number decreased significantly, after has been maintained at about 1 per leaf below. Control area in the spider mite peak average of 126 leaves per leaf. Although pesticide application area 6 times pesticide control, the peak of the average per leaf mite 112. The color and flower size of the release area are also significantly better than those of the control area and the application area.