Effect of temperature and humidity of the fecundity and longevity ofChelonus rufus lyle (Braconidae: Hymenoptera)
Temperature has a profound influence on the fecundity, longevity and oviposition days of the parasite.
Maximum fecundity is obtained at 30°C., and lower and higher temperatures greatly reduced the number of eggs laid.
Optimum temperature for the longevity of the female is 25°C., though there is not significant difference between 25 and 30°C. in this respect. However, at 15°C., the longevity is increased to three times, but the fecundity is very much reduced. At 40°C. the longevity is about four times less than that at optimum temperature.
Daylight or darkness do not affect the fecundity.
Humidity and the interaction between relative humidity and temperature has no marked effect on both fecundity and longevity of the female.
KeywordsPotassium Hydroxide Oviposition Rate Oviposition Period Cotton Bollworm Female Parasite
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