Cold Storage Effect on the Biological Characteristics of Orius laevigatus (Fieber) (Hemiptera: Anthocoridae) and Phytoseiulus persimilis Athias-Henriot (Acari: Phytoseiidae)
2009
Kim, J.H., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea | Kim, H.Y., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea | Han, M.J., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea | Choi, M.Y., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea | Hwang, S.J., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea | Lee, M.S., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea
We have investigated some biological characteristics, such as survival rate and fecundity, of Orius laevigatus and Phytoseiulus persimilis, which have been stored at 6, 8, 10, 12±1℃, RH 70±10%, in dark condition. Overall, an appropriate temperature for cold storage was 10℃ for O. laevigatus and 8℃ for P. persimilis. 70% of adult O. laevigatus could survive for 36 days at 10℃. The O. laevigatus stored at 10℃ for 10~50 days laid 37.1~120.5 eggs. Since fresh (no storage) O. laevigatus laid 224.5 eggs, comparative fecundity of stored adults was 16.5~53.7% of normal fecundity. P. persimilis stored at 8℃ for 7~42 days with (food eggs of Tetranychus urticae) laid 11.9~18.9 eggs. Since fresh P. persimilis laid 26.4 eggs, comparative fecundity of stored adults was 45.1~71.6% of normal fecundity.
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