利用性诱剂防治花生田暗黑鳃金龟的研究

摘要

为明确暗黑鳃金龟(Holotrichia parallela Motschulsky)性诱剂对成虫的引诱效果及对幼虫虫口密度的降低作用,在全国主要花生产区开展了田间诱捕试验,调查诱捕成虫数、幼虫减退率及对花生的保果效果.结果表明:一台诱捕器一天内诱到的最大成虫数为977头；幼虫减退率最高可达78.8％,保果效果最高可达68.6％.表明暗黑鳃金龟性诱剂对成虫有很强的引诱效果,并能明显减轻幼虫为害.%Field mass trapping trials were conducted in the major peanut-producing areas to evaluate the luring efficiency of sex pheromone of Holotrichia parallela Motschulsky and its effects on reducing the density of larvae. Trapping effect, dropping rate of larvae and nut-retention efficiency were investigated. The results showed that the greatest number caught by one trap in one day was 977. The highest dropping rate of larvae and nut-retention efficiency were 78.8% and 68.6%, respectively. It indicated that sex pheromone of H. Parallela provided a very good trapping efficiency and could significantly decrease the harm of larvae.