Abstract
Summary 1. Hexyl resorcinol, in 1:1000 dilution in 30 parts glycerin and 70 parts water, has proven a satisfactory disinfectant for Culicid eggs provided they are immersed in the liquid for a period of two minutes. 2. Anopheline larvae are able to utilize material in solution and colloids in suspension from normal pool water. This has been demonstrated by the use of Seitz-Werke filtered media and the dialysable and non-dialysable fractions of water from breeding habitats. 3. Larvae of Anopheles crucians and A. quadrimaculatus are able to live up to a period of eleven days and to make significant growth, under sterile conditions, in Seitz-Werke filtered water. 4. These larvae are unable, however, to develop in the dialysate of water from the same breeding pools. 5. In the case of the non-dialysable fraction of the same type of water it has been found that the larvae may live up to six days and make a slight significant growth, indicating that the normal water colloids may be of considerable importance in the nutrition of anopheline larvae.
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More From: The American Journal of Tropical Medicine and Hygiene
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