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首页> 外文期刊>Journal of Economic Entomology >Influence of Honey Bee Genotype and Wintering Method on Wintering Performance of Varroa destructor (Parasitiformes: Varroidae)-Infected Honey Bee (Hymenoptera: Apidae) Colonies in a Northern Climate
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Influence of Honey Bee Genotype and Wintering Method on Wintering Performance of Varroa destructor (Parasitiformes: Varroidae)-Infected Honey Bee (Hymenoptera: Apidae) Colonies in a Northern Climate

机译：北方气候下蜜蜂基因型和越冬方法对Varroa破坏者（拟寄生虫：Varroidae）感染的蜜蜂（膜翅目：Apidae）菌落越冬性能的影响

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The objective of this study was to assess the effectiveness of a cooperative breeding program designed to enhance winter survival of honey bees (Apis mellifera L.) when exposed to high levels of varroa (Varroa destructor Anderson and Trueman) in outdoor-wintered and indoor-wintered colonies. Half of the colonies from selected and unselected stocks were randomly assigned to be treated with late autumn oxalic acid treatment or to be left untreated. Colonies were then randomly assigned to be wintered either indoors (n = 37) or outdoors (n = 40). Late autumn treatment with oxalic acid did not improve wintering performance. However, genotype of bees affected colony survival and the proportion of commercially viable colonies in spring, as indicated by greater rates of colony survival and commercially viable colonies for selected stock (43% survived and 33% were viable) in comparison to unselected stock (19% survived and 9% were viable) across all treatment groups. Indoor wintering improved spring bee population score, proportion of colonies surviving, and proportion of commercially viable colonies relative to outdoor wintering (73% of selected stock and 41% of unselected stock survived during indoor wintering). Selected stock showed better "tolerance" to varroa as the selected stock also maintained higher bee populations relative to unselected stock. However, there was no evidence of "resistance" in selected colonies (reduced mite densities). Collectively, this experiment showed that breeding can improve tolerance to varroa and this can help minimize colony loss through winter and improve colony wintering performance. Overall, colony wintering success of both genotypes of bees was better when colonies were wintered indoors than when colonies were wintered outdoors.
机译：这项研究的目的是评估旨在提高蜜蜂（Apis mellifera L.）在室外冬季和室内环境中暴露于高水平的varroa（Varroa破坏因子Anderson和Trueman）的冬季生存的合作育种计划的有效性。越冬的殖民地。将来自选定和未选定种群的菌落的一半随机分配为用深秋草酸处理或不予处理。然后将菌落随机分配到室内（n = 37）或室外（n = 40）进行越冬。用草酸深秋处理不能改善冬季性能。但是，蜜蜂的基因型会影响春季的菌落存活率和商业上可存活菌落的比例，与未选择的种群相比，选定种群的菌落存活率和商业上可存活菌落的比率更高（43％存活，33％存活），这表明了蜜蜂的存在。在所有治疗组中，存活率（％）和存活率（9％）是可行的。相对于室外越冬，室内越冬改善了春蜂种群得分，存活的菌落比例以及商业上可行的菌落的比例（在室内越冬期间存活了73％的选定种群和41％的未选定种群）。选定的种群对varroa表现出更好的“耐受性”，因为相对于未选定的种群，选定的种群还保持较高的蜜蜂种群。但是，没有证据表明某些菌落具有“抗性”（螨虫密度降低）。总体而言，该实验表明，育种可以提高对varroa的耐受性，并且可以帮助最大程度地减少整个冬季的菌落损失并提高菌落越冬性能。总体而言，两种基因型的蜜蜂在室内越冬成功的情况要好于在室外越冬的情况。

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