Abstract
In order to anaesthetize insects in a laboratory, chilling and application of diethyl ether and carbon dioxide are commonly used. However none of the above methods is problem free. In particular, the use of diethyl ether, despite its simplicity, is now limited due to its poor safety. In our research, we evaluated ethyl acetate as an alternative anaesthetic substance. The effects of ethyl acetate anaesthesia were compared with those produced by carbon dioxide on adult green lacewings (Neuroptera: Chrysopidae). The biological parameters measured were longevity and fecundity. No significant differences appeared between the two treatments and the control. Although further research is necessary, the use of ethyl acetate proves to be very promising and presents a valid alternative to the use of diethyl ether and, in many cases, also to carbon dioxide and chilling.
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