We got one isolates of Botrytis cinerea from flower of grape, from then on, more and more Botrytis cinerea isolates were obtained and became the absolute preponderance. 3.

• 5.；葡萄果实中主要生化物质对灰霉病菌生长发育有影响葡萄糖和果糖对灰霉菌菌丝生长和孢子萌发均有极显著促进作用。