The effects of temperature on the longevity of adultDrosophila willistoni infected withNosema kingi

The effects of various temperatures on adultDrosophila willistoni Sturtevant infected withNosema kingi Kramer were studied. The minimal and maximal temperatures for the normal development of both the host and parasite were 17±2°C and 27±2°C respectively. 22±2°C appeared to be the optimal temperature rature for rearing both the host and parasite since the life span of the flies and the parasite burden were greatest at this temperature. Generally, as the temperature increased, the life span of the adultD. willistoni decreased.