论文部分内容阅读
能引起昆虫致病的病毒很多,当前常用于防治农林害虫的病毒,有棉铃虫核多角体病毒,斜蚊夜蛾核多角体病毒,松毛虫核多角体病毒和菜青虫颗粒体病毒.当病毒进入昆虫的肠道后,病毒外壳被昆虫的肠液溶解,遂把病毒粒子释放出来,并在消化道的细胞中生长繁殖,使昆虫得病.经过6～7天,当病毒蔓延到整个虫体时,虫体内的组织和细胞全部溶化,并为病毒粒子所代替,剩下一层薄脆的表皮.
The virus can cause a lot of insects disease, the current commonly used in the prevention and control of agricultural and forestry pests virus, there are Helicoverpa armigera polyhedrosis virus, Spodoptera litura nuclear polyhedrosis virus, dendrolimus nuclear polyhedrosis virus and Pieris granulosis virus .When the virus Into the insect’s intestine, the virus is dissolved by the insect’s intestinal juice shell, then release the virus particles, and in the digestive tract cells in the growth and reproduction, so that insects get sick after 6 to 7 days, when the virus spread to the entire parasites , All the tissues and cells in the worm body are dissolved and replaced by virus particles, leaving a thin layer of crisp epidermis.