When larvae were infected with nuclear polyhedrosisvirus, the dispersion of larvae moved to the up part of vegetable gradually.
幼虫感染斜纹夜蛾核多角体病毒后，在菜株上的分布重心逐渐上移。
2
Bombyx mori nuclear polyhedrosisvirus disease has the most extensive distribution and is the most serious disease in the occurred diseases.
在发生的病毒病为害中，家蚕核型多角体病分布最为广泛，为害最大。
3
Synergism of tebufenozide combined with Autographa californica nuclear polyhedrosisvirus against Spodoptera exigua was studied by bioassay in laboratory.