油桐尺蠖是油桐和多种农林作物的重要食叶害虫,广泛分布于中国南方各省。本研究工作通过室内毒力测定和林间防治试验,从8种农药中筛选出敌敌畏、杀灭菊酯和溴氰菊酯3种对油桐尺蠼幼虫毒力较高的农药。 试验结果表明,幼龄幼虫比老龄幼虫对农药敏感得多;各地用药水平不同,害虫种群已产生了不同的抗药性,因此,在选择农药种类的同时,还要根据各地用药的历史及虫龄的大小,选择合理的使用浓度。 在生物防治方法上,探讨了松毛虫赤眼蜂对表面覆有茸毛的第一代油桐尺蠼卵块的寄生效果。并对白僵菌和苏云金杆菌进行了室内外试验。 Tung oil palm is a tung tree and a variety of agriculture and forestry crops important leaf pests, are widely distributed in southern China provinces. In this study, through indoor toxicity test and forest prevention and control experiment, three kinds of pesticides were screened from eight kinds of pesticides, such as dichlorvos, fenvalerate and deltamethrin, which were highly virulent to triticale tree. The results showed that juvenile larvae were more sensitive to agrochemicals than aged larvae. Different levels of drug use led to different resistance levels of pest populations. Therefore, the selection of pesticide types should be based on the history of drug use and the age of insects The size, choose a reasonable use of concentration. In the biological control methods, we discussed the parasitism of the Trichogramma ostriniae eggs on the surface covered with velvet hair. Beauveria bassiana and Bacillus thuringiensis were tested indoors and outdoors.