カラマツハラアカハバチの産卵にたいするカラマツ類の抵抗性

概要

論文の詳細を見る
Resistance of larches to oviposition of the larch sawfly was examined using caged females. Seven females were released on each of three larches, Larix leptolepis GORDON, L. dahurica TURCZ. var. japonica MAXIM., and the hybrid (F_1) of both larches on 1 July 1987. Additional ten females were released on each species on 29 July 1987. In both instances, each female was released on one caged branch of a tree. Of 17 females released on each larch, one, five, and seven females did not deposit any eggs on L. leptolepis, L. dahurica, and the hybrid, respectively. The mean number of eggs deposited by ovipositing females decreased from L. leptolepis (38.1±10.7) to L. dahurica (32.8±11.2) to the hybrid (22.8±5.0). Thus the number of eggs per female on L. dahurica and on the hybrid were estimated at 65% and 38%, respectively, of that on L. leptolepis.
日本森林学会の論文
1988-10-01