Wednesday, July 25, 2007
A female produces about 900 eggs in her short life of 5 to 8 days. Housefly adults, by contrast, live up to 30 days, and during this long period, they must eat, and in so doing, they are actively engaged in the spread of disease. Their naturally short life span is the reason why they are not vectors of human pathogens. BSF eggs are relatively slow in hatching: from 102 to 105 hours. The newly hatched larvae have a light cream color, and crawl onto the waste, where they begin to consume it with amazing speed. Under ideal conditions, it takes about two weeks for the larvae to reach maturity. If the temperature is not right, or if there is not enough food, this period of two weeks may extend to several months. The ability of the BSF larva to extend its life cycle under conditions of stress is a very important reason why it may be used for waste disposal processing. BSF larvae pass through five stages or instars. Upon reaching maturity, they are about 25 mm in length, 6 mm in diameter, and they weigh about 0.2 grams. The dormant puparium is dark brown to charcoal gray in color. These larvae and pupae are extremely tough and robust. They can survive under conditions of extreme oxygen deprivation.
Posted by Greenie at 12:41 PM