Vasconcelos Simão D, Hails Rosie S, Speight Martin R, Cory Jenny S
Ecology and Biocontrol Group, Centre for Ecology and Hydrology, Mansfield Road, OX1 3SR, Oxford, UK.
J Invertebr Pathol. 2005 Feb;88(2):177-9. doi: 10.1016/j.jip.2005.01.002.
Baculovirus infection in Lepidoptera can alter both larval mobility and feeding rates, which can in turn affect pathogen transmission and dispersal in the field. We compared the damage to cabbage plants in the field caused by healthy and nucleopolyhedrovirus-infected Mamestra brassicae L. (Lepidoptera: Noctuidae) larvae released as second and fourth instars. There was no significant difference in plant consumption by healthy and infected larvae for the first 4 days after release. From day 5 onwards, infected larvae caused significantly less defoliation. This pattern was similar for larvae at both larval instars. Defoliation was greater for fourth instars throughout the experiment.
鳞翅目昆虫中的杆状病毒感染可改变幼虫的活动能力和取食速率，进而影响病原体在田间的传播和扩散。我们比较了健康的和感染核型多角体病毒的甘蓝夜蛾（鳞翅目：夜蛾科）幼虫（分别以二龄和四龄释放）对田间甘蓝植株造成的损害。释放后的前4天，健康幼虫和受感染幼虫对植株的啃食量没有显著差异。从第5天起，受感染幼虫造成的落叶明显减少。两种龄期的幼虫都呈现出这种模式。在整个实验过程中，四龄幼虫造成的落叶更多。
