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临安市种植番茄已有13年历史。1997年全市高山番茄种植面积发展到3000亩。由于高山地区多雨潮湿,土壤瘠薄,耕地少,轮作困难等因素,导致番茄病害每年均呈递增趋势,使番茄的产量和品质急剧下降,削弱了市场竞争力。因此,如何及时做好病害防治工作显得十分重要。 据近几年临安市蔬菜主管部门在上溪、马啸等高山蔬菜基地调查表明,高山番茄的主要病害是早疫病、晚疫病、青枯病和蕨叶病毒病,这4种病害从番茄苗期到盛果期均有大量发生。随着高山蔬菜的迅速发展以及栽培地连作年限的增加,番茄病害为害程度越来越重,且为其他高山蔬菜提供了菌源。 一、高山番茄病害与环境因子 （一）土壤对病害发生的影响土壤是蔬菜根系着生的地方,也是多种病原菌的越冬场所。高山土
Lin’an City, tomato cultivation has been 13 years of history. In 1997 the city’s mountainous tomato planting area to 3000 acres. Due to rainy and humid mountain areas, infertile soils, less cultivated land and difficult rotation, the tomato diseases show an increasing trend every year, which leads to a sharp drop in the yield and quality of tomatoes, which weakens the market competitiveness. Therefore, how to do a good job in disease prevention and control is very important. In recent years, Lin’an City, the provincial department of vegetables in Shangxi, Ma Xiao and other mountain vegetable base survey shows that the main diseases of Alpine tomatoes are early blight, late blight, bacterial wilt and fern leaf virus disease, these 4 diseases from tomato seedlings Period to the fruitful period have occurred in large quantities. With the rapid development of mountainous vegetables and the increasing number of successive years of cultivation, tomato diseases have become more and more harmful and provide the source of other mountainous vegetables. First, the mountain tomato disease and environmental factors (A) the impact of soil on the disease Soil is the root of vegetables with the students, but also a variety of pathogens overwintering places. Alpine soil