一、主要工作内容蔬菜病害是蔬菜生产上一大障碍，长期以来，蔬菜病害防治主要依靠化学防治，化学农药的大量使用带来的产品农药残留超标、人畜中毒等问题日益受到全社会的关注，近几年来，冬瓜大面积枯死和夏播芹菜烂心死秧已成了困扰京郊两大蔬菜种植的疑难问题，通过我们深 First, the main content Vegetable disease is a major obstacle to vegetable production, a long time, vegetable disease prevention and control mainly rely on chemical prevention and control, chemical pesticides caused by excessive use of pesticide residues exceeded, human and animal poisoning and other issues are increasingly subject to the concern of the whole society, In recent years, the large area of ​​dead melon and summer sowing celery dead heart disease has become plagued the two suburbs of Beijing vegetable cultivation difficult problems through our deep