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星天牛是柑桔的主要害虫之一。为了防治该虫危害,我们于1996年6月4日在我乡南源村第一村民小组溪山下4年生温柑园进行星天牛防治试验。设三种处理,每处理80株。第一种处理用50%甲胺磷30倍液喷主干以下至嫁接口、根颈部;第二种处理用50%甲胺磷2倍液于星天牛危害时,发现一
Asteroid is one of the major pests of citrus. In order to prevent the harm of the pest, we conducted the trial of Asteraceae on June 4, 1996, at the 4-year-temperature WengGuan Park, the first villager team in Nan Yuan Village, My Town. Set three kinds of treatment, each processing 80. The first treatment with 50% methamidophos 30 times the liquid spray following the main interface to the graft, the root of the neck; the second treatment with 50% methamidophos 2 times the harm of Asplenium, found a