Effectiveness of Microplitis mediator (HYM: Braconidae) against its hosts Agrotis segetum and A. ipsilon (Lepidoptera: Noctuidae)
1999
Khan, S.M. (Gomal Univ., D.I. Khan (Pakistan). Faculty of Agriculture)
Three days old female of Microplitis mediator (Haliday) parasitized 5 days old 2.7, 5.6, 8.7, 9.0 larvae of Agrotis segetum and 1.8, 4.0, 7.7,9.2 A. ipsilon larvae in 1, 3, 6 and 12 hours duration respectively. Theparasitic female of the same age parasitized 7.1, 8.7, 2.9, 1.4 Agrotis segetum and 6.7, 7.6, 3.2, 1.1 A. ipsilon larvae of 3, 5, 7 and 10 days old in 6 hours duration respectively. The female parasitized 2.9, 8.7, 8.0, 7.7 A. segetum and 4.4, 7.6, 8.8, 10.0 A. ipsilon out of 5, 10, 15 and 20 number of each host larvae in 6 hours duration respectively. The female parasitized 37.8, 34.6, 33.6 A. segetum and 29.2, 26.6, 25.4 A. ipsilon larvae till her death at 20 plus minus 2 degree centigrade, 25 plus minus 2 centigrade and 30 plus minus 2 degree centigrade and 60 - 70 percent r.h.and 14 hours light respectively.
显示更多 [+] 显示较少 [-]