Abstract
Recent awareness of chemical contamination of the world's environment, combined with pesticide resistance in insect disease vectors, has caused an increase in nonchemical control research. The use of “space repellents” on wide-mesh netting (0.635 cm mesh) for the protection of humans against mosquito disease vectors holds much promise. Wide-mesh netting is economical, easy to utilize, and provides for good ventilation when used to cover windows and doors, or as protective shirts and bed nets. In this study, bed nets were used to evaluate three new repellents: o-ethoxy-N,N-diethylbenzamide; o-ethoxy-N,N-dipropylbenzamide; and 2-[(p-methoxybenzyl)oxy]-N,N-dipropylacetamide. Protection times ranged from 83 to 236 days. Considering availability and toxicity, 2-[(p-methoxybenzyl)oxy]-N,N-dipropylacetamide appears to hold promise as a space repellent for wide-mesh netting.
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