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Studies on the utilization of natural enemies as 'biotic insecticides'. Effect of physical factors on the culture of Pseudaphycus malinus Gahan

, : Studies on the utilization of natural enemies as 'biotic insecticides'. Effect of physical factors on the culture of Pseudaphycus malinus Gahan. Science Bulletin of the Faculty of Agriculture, Kyushu University 24(2): 167-172

In this further part of a series from Japan on the rearing of Pseudaphycus malinus Gah. for release against Pseudococcus comstocki (Kuw.) (see preceding two abstracts), details are given of studies to determine the optimum rearing conditions. The optimum temperature appeared to be 25 deg C, for fewer progeny were produced at 30 deg C and the duration of the life-cycle was prolonged at 20 deg C.


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