番茄灰霉病在唐山于1986年局部发生,危害逐年加重,1989年因该病危害,使8000亩温棚番茄60％的地块减产20％以上,损失产值近500万元。韭菜灰霉病以第二刀韭菜危害重,因韭菜棚矮,喷药不便且增加了棚湿度。百菌清烟剂的应用在生产上起到了一定作用,但连续使用易产生抗药性。为此,引进了西安现代化研究所的10％速克灵烟剂进行了防治灰霉病的试验,取得了较好的效果,结果如下: Botrytis cinerea occurred locally in Tangshan in 1986, and its harm increased year by year. In 1989, due to the damage of the disease, more than 20% of the land of 60% of 8000 mu greenhouse shed was lost and the output value of the loss was nearly 5 million yuan. Leek gray mold with the second knife leek harm, due to leek greenhouse, spraying inconvenience and increase shed humidity. Chlorothalonil smoke application in the production played a certain role, but the continuous use of easy to produce resistance. To this end, the introduction of 10% of the Xi’an Institute of Modernization Kailing tobacco smoke prevention and control of gray mold experiments, and achieved good results, the results are as follows: