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首页> 外文期刊>Pest Management Science >Mating disruption of California red scale, Aonidiella aurantii Masked (Homoptera: Diaspididae), using biodegradable mesoporous pheromone dispensers
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Mating disruption of California red scale, Aonidiella aurantii Masked (Homoptera: Diaspididae), using biodegradable mesoporous pheromone dispensers

机译：使用可生物降解的介孔信息素分配器交配破坏加州红色鳞片的Aonidiella aurantii Masked（Honoptera：Diaspididae）

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BACKGROUND: The control of California red scale, Aonidiella aurantii (Maskell), has encountered many difficulties, which has raised interest in alternative control methods. Up to now, the A. aurantii sex pheromone has been used only for monitoring. In a previous work the authors described a biodegradable mesoporous pheromone dispenser for mating disruption. To verify the efficacy of these dispensers, three field trials were conducted, and the results are shown in this paper. RESULTS: The study of the release profile of these dispensers revealed a mean pheromone emission value of 269 μg day~(-1) and levels of residual pheromone of 10% at the end of 250 days. During the second flight, an A. aurantii male catch reduction of 98% was achieved in the mating disruption plot of trial 1,93.5% in trial 2 and 76.7% in trial 3. During the third flight, reductions were 94.1, 82.9 and 68.1% in trials 1, 2 and 3 respectively. Considering damaged fruit with more than five scales, reductions of about 80 and 60% were obtained in the mating disruption plots of trials 2 and 3, respectively, compared with an untreated plot, and a reduction of about 70% in trial 1 compared with an oil-treated plot. CONCLUSION: Mating disruption has been found to be an efficient technique to control this pest, working equally well to a correctly sprayed oil treatment. Further studies are needed to improve the determination of the time of dispenser application and evaluate the effects of the pheromone on natural enemies.
机译：背景：对加利福尼亚红鳞的控制（Aonidiella aurantii（Maskell））遇到了许多困难，这引起了人们对替代控制方法的兴趣。迄今为止，Aurantii性信息素仅用于监测。在先前的工作中，作者描述了一种可生物降解的中孔信息素分配器，用于交配破坏。为了验证这些分配器的功效，进行了三个现场试验，结果显示在本文中。结果：对这些分配器的释放曲线的研究表明，平均信息素释放值为269μgday〜（-1），在250天结束时残留信息素的水平为10％。在第二次飞行中，在试验2的交配破坏区中，A。aurantii男性捕获减少了98％，在试验2中，在试验3中达到了76.7％。在第三次飞行中，下降了94.1、82.9和68.1 ％分别在试验1、2和3中。考虑到损坏的水果有五个以上的尺度，与未处理的样地相比，在试验2和3的交配破坏样地中分别减少了约80％和60％，而在试验1中，与未处理的样地相比，减少了约70％。经过油处理的地块。结论：发现交配破坏是控制这种害虫的有效技术，与正确喷雾处理的油同样有效。需要进一步的研究来改善分配器使用时间的确定，并评估信息素对天敌的影响。

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