Varroa mite index (mites per 100 bees) from surviving and dead colonies.
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All surviving colonies (n = 16) were treated. Four colonies that died over the winter were treated. All untreated colonies died over winter.#n = 2 in October. Despite the treatment, mite infestation level increased, especially in the succumbing colonies. This could be due to ineffective treatment or subsequent mite reinvasion.¤Significant difference in mite index between surviving and dead colonies (* P
创建时间:
2015-12-02



