Combined effects of oxygen, partial vacuum, temperature, humidity and gamma radiation on mating competitiveness of culex pipiens complex l. Males
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When the pupal stage of Culex pipiens complex L. male mosquito was exposed to gamma radiation (60 Gy), oxygen, partial vacuum (0.1 torr), low temperature (10°C), for one or two hours, or low humidity (31% R. H.) for 3 hours, applied separately, their mating competitiveness was not affected. However, when they were exposed to the 2nd, 3rd or 4th factor followed by irradiation with 60 Gy gamma radiation after 1/2, 1 or 2 hours, the mating competitiveness was insignificantly decreased. When the pupae were exposed to low humidity (31 % R.H.) for 3 hours and then irradiated immediately or after 1/2, 1 or 2 hours, the mating competitiveness was significantly decreased.