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近几年来,竹螟猖撅发生于苏浙皖毗连地区的广大竹区.因此虫为害,重者新竹大量枯死;轻者次年出笋减少,下度新竹眉围降低.1978年春季试验中发现,当将久效磷或氧化乐果注入竹腔后,次日药液即传导至叶部,其上竹粉虱死亡达87.7%,至第9天对初孵若虫,仍有很高的毒力.为了明确内吸传导的方法能否用以防治竹螟,我们搜集了几种毒性较低,药源充足,内吸性能较强与农药进行了试验,结果如下:
In recent years, the rampant bamboo borers occur in the majority of bamboo area adjacent to Jiangsu, Zhejiang and Anhui provinces. Therefore, the pest damage, heavy dead in large numbers in Hsinchu; light the next year to reduce bamboo shoots, the lower degree of Hsinchu Mei lower .1978 spring test It was found that when the monocrotophos or omethoate was injected into the bamboo shoots, the next day the liquid was transferred to the leaves, killing 87.7% of the whiteflies. On the 9th day, the newly hatched nymphs were still very tall In order to clarify whether the method of internal absorption and conduction can be used to prevent and control bamboo beetles, we collected several low toxicity, adequate source of drug, internal absorption stronger with pesticides were tested, the results are as follows: