Effect of Temperature on Adult Survival and Potential Fecundity of the Rusty Grain Beetle, Cryptolestes ferrugineus

概要

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The longevity of adults of the rusty grain beetle, Cryptolestes ferrugineus (STEPHENS) (Coleoptera : Cucujidae) was determined at-9,0,10,15,20,25,30,35 and 40℃ and 70% relative humdity. The survival rates : at -9℃began to decrease during the 2nd week and was 13% after 7 weeks, at 0℃ were more than 90% for the first 6 weeks and was 56% after 11 weeks, at 10 to 30℃ ranged from 77 to 97% after 32 weeks, at 35℃ was 38% after 32 weeks, and at 40℃ decreased to 0% in 6 weeks. Survival rate for females was higher at -9℃ and lower at 35℃ than that for males, and there were no significant sex differences in survival among the other temperatures. More than 81% of the females that survived at 10 and 15℃ for 32 weeks produced viable eggs at a rate of more than 14 eggs per week when transferred to 30℃ and 70% RH. Under the same conditions, a smaller proportion of females, which survived for 32 weeks at high temperatures, produced viable eggs at a lower rate.
日本応用動物昆虫学会の論文
1989-11-25