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近１０年来，山东蔬菜业蓬勃发展，随着全省蔬菜播种面积扩大，尤其是保护地蔬菜面积扩增，蔬菜灰霉病发生普遍，蔓延迅速危害猖獗，番茄灰霉病是其中的一种重要病害，一般造成减产２０％～３０％，严重时可达５０％以上，并且在蔬菜产区有加重的趋势，严重影响番茄产量的提高?
In recent 10 years, the vegetable industry in Shandong boomed. With the expansion of sown area of vegetables in the province, in particular, the vegetable area in protected areas expanded, the prevalence of botrytis cinerea was widespread and the spread was rampant. The gray mold of tomato was one of the important Diseases, the general result in 20% to 30% reduction, up to 50% in severe cases, and aggravating the trend in the vegetable producing areas, seriously affecting the yield of tomatoes?