蔬菜灰霉病是现在蔬菜生产上危害较为严重的一种病害,该病具有浸染快、浸染寄主广,为害期长等特点。而且易产生抗药性,如单用一种药剂连续使用三次后,药效会逐渐递减。而两种药剂交替使用,如先使用5％的扑海因,隔7-10天再使用65％的甲霜灵防效会达到87.8％。从2000年到2003年,全县早春保护地蔬菜病害调查结果显示蔬菜灰霉病发生率达47.8％,由灰霉病造成减产20％-50％。为此我们对蔬菜灰霉病的发生和综合防治,进行了初步研究。现将情况介绍如下: Botrytis cinerea is now a more serious damage to the vegetable production of a disease, the disease has the dip fast, wide host disseminated, long duration of harm and so on. And easy to produce resistance, such as using a single agent for three consecutive use, the efficacy will gradually decline. The two drugs used alternately, such as the use of 5% of the first use of melatonin, every 7-10 days and then use 65% of metalaxyl control effect will reach 87.8%. From 2000 to 2003, the survey on vegetable diseases in early spring protected areas of the county showed that the incidence of gray mold disease in vegetables reached 47.8%, and the yield reduction caused by gray mold disease was 20% -50%. To this end, we have carried out a preliminary study on the occurrence and comprehensive prevention and cure of Botrytis cinerea. Now the situation is as follows: