[目的]吐伦球坚蚧的严重发生是影响新疆经济林发展的主要因素之一,研究脱叶剂防治吐伦球坚蚧效果,为科学防治提供依据.[方法]根据新疆喀什地区莎车县吐伦球坚蚧在5月下旬从枝条转移到叶片固定危害,9月下旬至10月上旬从叶片转移到枝条固定越冬这一生物学特性,于9月下旬使用脱叶剂(植物生长调节剂)进行喷施.使用1∶100、1∶200、1∶300三种不同浓度的脱叶剂.[结果]三种不同浓度的防治效果均在90％以上.[结论]使用脱叶剂既可有效控制吐伦球坚蚧种群数量,又对环境无污染,是一种无公害的防治措施.%[ Objective ] Serious occurrence of Rhodococcus turanicus Archangelskaya is one of main factors affecting economic forest development in Xinjiang, and the purpose of this project aims to research the effect of Rhodococcus turanicus Archangelskaya control by defoliants in order to provide the basis for a more scientific control. [Method] Based on the fixed hazard that Rhoaococcus turanicus Archangelskaya moves from branches to leaves in late May, and then moves from leaves to branches from late September to early October for overwintering, we take advantage of this biological characteristics to control Rhodococcus turanicus Archangelskaya. Plant growth regulator is sprayed on leaves in late September, and it can carry the parasites off in advance to achieve the purpose of treatment. Three different concentrations of plant growth regulator 1:100, 1:200, 1:300 are used in the control experiment. [Result] Three different concentrations of plant growth regulator & control effect is more than 90% . [ Conclusion] The use of defoliants can effectively control the population of Rhoaococcus turanicus Archangelskaya, and it is a pollution - free prevention and control measure.
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