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六十年代末美国在果园发现了捕食螨的抗药性品系,到七十年代中期开始在多个国家大面积应用取得极为显著的效果。通过实验室筛选育成的抗性品系在田间应用成功的例子一直到八十年代初才见报导。Hoy等从1979年开始在美国加利福尼亚州—果园散放西方盲定螨Metaseiulus occidentalis Nesbitt 抗有机磷—西维因品系,经三年连续观察仍保持较高的抗性水平。1984年我们在实验室内选育出尼氏钝绥螨Amblyseius nicholsi Ehara et Lee抗亚胺硫磷品系,抗药水平已达到大田常用浓度的两倍,从1985年开始,我们在柑园进行小区应用试验。1986年继续观察其越冬能力,抗性稳定性及控制桔全爪螨Panonychus citri McG.的能力,现将有关试验结果整理如下。
In the late 1960s, the United States found a drug-resistant strain of predatory mites in orchards and achieved remarkable results in a large area in many countries by the mid-1970s. The successful application of resistant strains bred from laboratory screening in the field did not show any reports until the early 1980s. Since 1979, Hoy et al. Have released western anti-organophosphatidylcholine-resistant compounds from the orchards in the orchard of California, USA, and maintained high levels of resistance after three years of continuous observation. In 1984, we bred Amblyseius nicholsi Ehara et Lee anti-epothilone in the laboratory, and the drug resistance level has reached twice the common concentration in the field. Since 1985, Application test. In 1986 to continue to observe its ability to overwintering, stability and resistance to control Panonychus citri McG. Ability, the test results are summarized below.