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An investigation of techniques for using oxalic acid to reduce Varroa mite populations in honey bee colonies and package bees.

机译：使用草酸减少蜜蜂群体和包装蜜蜂中螨螨种群数量的技术研究。

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摘要

I investigated strategies for reducing Varroa mite populations (Varroa destructor) in honey bee colonies (Apis mellifera ) using oxalic acid (OA). I examined the efficacy of OA in both broodless colonies and colonies that contain brood. My data indicate that OA is most effective at reducing Varroa populations when colonies are broodless because repeated applications of OA did not significantly reduce mite populations in colonies when brood was present. Next, I quantified the contact toxicity of OA to Varroa mites and their honey bee hosts in laboratory bioassays. The results indicate that OA has a low acute toxicity to honey bees and a high acute toxicity to mites. The toxicity data will help guide scientists in delivering lethal dosages of OA to the parasite and in protecting its host.;I also investigated how OA is distributed in honey bee colonies when applied using the trickle method. For this study, I constructed nine divided Langstroth hives using 3 different types of dividers that allowed trophallaxis, physical contact, or fumigation. I treated bees on one side of the divider and then monitored mite mortality on both the treated and untreated sides. Bee-to-bee contact was the primary route for OA distribution. Finally, I developed a protocol for using OA to eliminate mites from package bees. I made 97 packages of Varroa-infested adult bees. I sprayed an OA solution directly on the bees through the mesh screen of the package cages using a pressurized air brush. I quantified mite and bee mortality and estimated the optimum dosage of OA to apply to package bees for mite control without injuring bees. The application of 3 mL of a 2.8% OA sugar water solution per 1000 bees will allow beekeepers to safely reduce populations of Varroa mites from packages prior to installation. My research is significant because it offers beekeepers a safe, effective, and sustainable method for reducing Varroa populations.
机译：我研究了使用草酸（OA）减少蜜蜂群体（Apis mellifera）中的小螨虫种群（Varroa破坏者）的策略。我检查了OA在无卵菌落和含卵菌落中的功效。我的数据表明，当无亲群时，OA对减少Varroa种群最有效，因为当存在亲子时，重复施用OA并不能显着减少菌落中的螨虫种群。接下来，在实验室生物测定中，我定量了OA与Varroa螨及其蜜蜂宿主的接触毒性。结果表明，OA对蜜蜂的急性毒性低而对螨虫的急性毒性高。毒性数据将有助于指导科学家将致命剂量的OA释放到寄生虫中并保护其宿主。我还研究了使用滴流法在蜜蜂群体中OA的分布方式。在本研究中，我使用3种不同类型的分隔物构造了9个分开的Langstroth蜂箱，这些分隔物允许进行触针，物理接触或熏蒸。我在分隔器的一侧对蜜蜂进行了处理，然后监测了处理过和未处理过的一侧的螨虫死亡率。蜂对蜂的接触是OA分配的主要途径。最后，我开发了一种使用OA消除蜜蜂包装中螨虫的协议。我制作了97包受Varroa感染的成年蜜蜂。我使用加压气刷通过包装笼的网状筛将OA溶液直接喷在蜜蜂上。我量化了螨虫和蜜蜂的死亡率，并估计了适用于包装蜜蜂以控制螨虫而不伤及蜜蜂的最佳OA剂量。每1000只蜜蜂使用3 mL的2.8％OA糖水溶液3.8毫升，可使养蜂人从安装前的包装中安全地减少螨虫种群。我的研究意义重大，因为它为养蜂人提供了一种安全，有效和可持续的减少Varroa种群的方法。

著录项

  • 作者

    Aliano, Nicholas Paul.;

  • 作者单位

    The University of Nebraska - Lincoln.;

  • 授予单位 The University of Nebraska - Lincoln.;
  • 学科 Biology Entomology.
  • 学位 Ph.D.
  • 年度 2008
  • 页码 154 p.
  • 总页数 154
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 昆虫学;
  • 关键词

  • 入库时间 2022-08-17 11:38:49

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