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1979年,我们先后在大陆、归王、沈宅等大队的棉花、扁豆、豇豆、茄子以及杂草上,发现了一种捕食棉红蜘蛛能力很强的捕食螨(初定拟长刺钝绥螨)。8月3日在北陈生产队棉田检查红叶上的捕食螨寄生率为10％,8月30日检查达30％。同日又在黄豆田中发现捕食螨,30多平方米内捕食螨叶片寄生率达74％,平均单叶虫卵12.8粒,最多一张叶片上有56粒,红蜘蛛受到了明显的控制。现将观察结果简报如下: 一、生活习性:①各虫态历期:8月上旬,室温25～30℃下:平均卵期31小时;幼虫期8小时;第
In 1979, we found a predatory mite that predates cotton spider mites on cotton, lentils, cowpeas, eggplants and weeds in mainland China, Mites). On August 3, the parasitic rate of the predatory mites on the leaves of the North Chen production team in cotton fields was 10% and 30% on August 30. On the same day, the predatory mite was found in the soybean field. The parasitic rate of the predatory mite leaf in more than 30 square meters was 74%. The average single leaf worm had 12.8 eggs and the maximum number was 56 on one leaf. The red spider was obviously controlled. Now observe the briefing results are as follows: First, the habits of life: ① the worm period: early August, room temperature 25 ~ 30 ℃: the average egg life of 31 hours; larvae of 8 hours;