ムクゲにおけるワタアブラムシの秋季生態に影響する落葉その他の要因

概要

論文の詳細を見る
Gynopara of Aphis gossypii started flying to Hibiscus syriacus in Utsunomiya on October 19,1989 and the migration lasted for about one month. Defoliation of H.syriacus began on October 20 ; more than 30% of the leaves had fallen by the end of October and more than 80% by around November 10. Over 30% of oviparous female A.gossypii larvae bred before the end of October grew into adults, but only 13% of larvae bred in November did so. It is likely that predation by spiders strongly effects larval survival in October, and de foliation and yellowing of leaves affected larval growth in November. However, many oviparous female larvae had already matured before the majority of the H.syriacus leaves fell, indicating that the growing period of oviparous females is closely synchronized with the defoliation period.
日本応用動物昆虫学会の論文
1992-02-25