番茄晚疫病是兰溪市番茄的主要病害。近年来，随着种植业结构的调整，番茄种植面积和连作面积逐年提高，番茄晚疫病发生逐年加重。 2000年全市种植面积 333.3 hm2次，发病面积 253.3 hm2次，绝收面积 73.3 hm2次，平均损失 20.25 t/hm2。为此我们引进氨基寡糖素对番茄苗期晚疫 Late blight of tomato is the main disease of tomato in Lanxi. In recent years, with the adjustment of planting structure, the planting area and continuous cropping area of ​​tomato have been increasing year by year, and the occurrence of late blight of tomato has been increasing year by year. In 2000, the planting area of ​​the city was 333.3 hm2 times, with an area of ​​253.3 hm2 and an area of ​​73.3 hm2 with an average loss of 20.25 t / hm2. To this end, we introduced amino oligosaccharides tomato late seedling stage epidemic