蕃茄是一种高产、优质的蔬菜品种,在我市栽培已有三十多年的历史。由于它营养丰富、肉质细嫩、滋味鲜美,可作蔬菜,也可作水果生食,深受广大工农兵群众喜爱。近年来随着社会主义革命和建设的深入发展,城乡人民生活水平的不断提高,以及城市开放和来昆国际友人的逐年增多,郊区蕃茄栽培面积迅速扩大,成为市场上重要的蔬菜品种。蕃茄晚疫病是一种毁灭性的病害,在低温阴雨的条件下极易发展蔓延。我市地处低纬高原(海拔1900米),夏季气候温凉(平均气温18—20℃)。加之受印度洋季风影响,干湿季分明,在露地栽培蕃茄生长的6—9月多阴天和降水,晚疫病极易大流 Tomato is a high yield, high quality varieties of vegetables, cultivated in our city for more than 30 years of history. Because of its nutrient-rich, delicate meat, delicious taste, can be used for vegetables, but also for raw fruits and vegetables, the masses of workers and peasants loved by the masses. In recent years, along with the further development of the socialist revolution and construction, the continuous improvement of people’s living standards in urban and rural areas, and the increasing number of international friends in cities open to the public and in La-Kun, the area of ​​tomato cultivation in the suburbs has rapidly expanded and become an important vegetable variety on the market. Late blight tomato disease is a devastating disease, extremely easy to develop and spread under the condition of low temperature and rainy days. The city is located in the low latitude plateau (1900 meters above sea level), cool summer climate (average temperature 18-20 ℃). In addition by the Indian Ocean monsoon, wet and dry season is clear, in the open field tomato growing cloudy June -6 and precipitation, late blight extremely easy flow