论文部分内容阅读
1985年由美国农业部在华盛顿和俄亥俄研究出一种消灭舞毒蛾的新方法,尽管这一结果尚未应用于大面积生产,但有关昆虫学家认为,这种将对环境安全产生有益作用的方法很有希望。此方法是根据美国农业部有关科学工作者早期提出的“雄性不育”技木而设计的,改进后比前人所采用的方法更实用且成本更低。早期的方法就是通过人工饲养出大量的舞毒蛾,经辐射处理后,将其大量地释放到成灾区内,以使这种不育性雄蛾与可育性雌蛾交配后所产的卵不会孵
A new method of eliminating Gypsy moths was developed by the USDA in Washington and Ohio in 1985 and although this result has not been applied to large-scale production, entomologists believe that this approach, which will have a beneficial effect on environmental safety Very promising. This method is based on the “male sterility” technique proposed by the USDA in the early days of scientific workers. The improved method is more practical and less costly than previous methods. The early method was to rearing a large number of Gypsy moths by hand and releasing them largely to the affected area after radiation treatment so that the eggs produced after the mating of male sterile moths with fertile female moths did not Will hatch