Laboratory Studies of Honeybee Larval Growth and Development as Affected by Systemic Insecticides at Adult-Sublethal Levels

摘要: SummaryThe effects of two systemic insecticides, carbofuran and dimethoate, at concentrations sublethal to adult worker honeybees (<1·25 μg/g food) on larval growth, pupation success acetylcholinesterase (AChE) activity were investigated in larvae reared royal jelly (RJ) the laboratory. Larvae initially exposed either insecticide 5 RJ a late age (e.g. 96 h) gained weight more slowly than control died relatively early. Insecticide 1·25 rarely disrupted growth first 72–96 h age. Concentrations adults sometimes rcduced mature weights an early (44 h). Rcduced numbers potentially viable pupae resulted when these or dimethoate even 0·313 μg/g. As AChE homogenstes untreated was highly variable, does not appear be as reliable criterion for detecting poisoning red...