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近年来,养花者越来越多,但多种花木虫害严重。据1985—1987年对许昌市8个花圃和15个庭院的调查,蚜虫发生率98.7%,红蜘蛛发生率96.2%,小造桥虫发生率56.9%,蚧壳虫发生率41.6%,这些虫害的发生,严重影响花木的生长发育。为有效防治害虫,以往多用药剂喷洒法进行防治,但此法对庭院养花不太适宜,主要是缺药少械,浓度不易掌握,容易污染环境。为了探
In recent years, more and more flower-planting, but a variety of flowers and trees pest serious. According to the survey of 8 flowerbeds and 15 courtyards from 1985 to 1987 in Xuchang City, the incidence of aphids was 98.7%, that of spider mites was 96.2%, that of small bridges was 56.9%, and that of scale insects was 41.6% Occurred seriously affect the growth and development of flowers and trees. In order to effectively control pests, in the past multi-agent spraying method for prevention and treatment, but this method is not suitable for garden flowers, mainly lack of medicine, concentration is not easy to grasp, easy to pollute the environment. In order to explore