ワタアブラムシの捕食寄生バチ，Ａｐｈｅｌｉｎｕｓ ｇｏｓｓｙｐｉｉ Ｔｉｍｂｅｒｌａｋｅの産卵数および寄主体液摂取数

Abstract

The numbers of eggs deposited and host feeding were examined in Aphelinus gossypii provided with third-instar larvae of Aphis gossypii as hosts. The parasitoid female had a mean (±SD) longevity of 8.1±3.5 days (range 5-17 days). The mean (±SD) daily and total numbers of eggs deposited were 8.3±3.3 (range 3.8-19.3) and 57.0±30.4 (20-115), respectively. The mean (±SD) daily and total numbers of aphids killed by host feeding were 1.5±0.6 (range 0.4-3.0) and 10.7±6.5 (2-23), respectively. On average, the parasitoid female killed one aphid by feeding for every 5.3 eggs deposited over 8 days.