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近几年来,在苏、浙、皖毗连地区的广大竹产区中,竹螟大量发生。由于此虫危害,轻者使下年出筍量减少,下度新竹眉围降低,重者当年新竹大量枯死。1978年在春季试验中发现,将久效磷或氧化乐果注入竹腔后,次日药液即传导至叶部,其上竹粉(?)死亡达87.7%,至第九天对初孵若虫仍有很高的毒力。为探明此法能否用以防治竹螟,我们用几种毒性较低,药源充足,内吸性能较强的农药进行了试验。
In recent years, a large number of bamboo borers occur in a large number of bamboo producing areas in the adjoining areas of Jiangsu, Zhejiang and Anhui. As a result of this pest endangerment, the light ones reduced the amount of bamboo shoots in the next year and the number of bamboo shoots in Hsinchu area decreased. In the spring of 1978, it was found that when the monocrotophos or omethoate were injected into the bamboo cavity, the liquid of the next day was transferred to the leaf and the death of bamboo powder (?) Reached 87.7% Nymphs still have high virulence. In order to find out whether this method can be used to control Chilo suppressalis, we tested it with several pesticides with low toxicity, adequate source of drug and strong internal absorption.