Precocene II is no Anti-Juvenile Hormone in the Honey Bee, Apis mellifera
نویسندگان
چکیده
Precocene II, Anti-Juvenile Hormone, Honey Bee, Apis mellifera, Anti-Feedant The effect of precocene II on development of the honey bee, Apis mellifera, was studied in vitro. Oneto two-day-old worker larvae (body weight 0.5 — 1.0 mg) were removed from the colonies, reared on royal jelly-yeast extract, and after 24 h were topically applied with different amounts (5 75 |ig/larva) of precocene II. Toxicity was observed only with precocene doses of 50 (ag/larva and more. The larval weight-gains declined with the increase of doses. The acetone-treated control had better survival and weight-gain as compared to the no-treatment control. The larval and pu pal periods in the treated larvae remained unchanged as compared to the controls. The possibility of precocene acting as an antifeedant is discussed.
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