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厦门市常年蔬菜种植面积2.1万hm2左右,近年来,番茄种植面积不断扩大,现已达到2670hm2。但由于2002年晚季和2003年早季番茄晚疫病发生面积1600hm2,严重影响了产量和品质,挫伤了广大菜农种植番茄的积极性。据调查,本地区番茄晚疫病一般受害率约15%,而2002年晚季番茄受处理喷药时?
Xiamen perennial vegetable planting area of about 21000 hm2, in recent years, tomato planting area continues to expand, has now reached 2670hm2. However, due to late winter 2002 and early 2003, tomato late blight occurred area 1600hm2, seriously affecting the yield and quality, contaminating the enthusiasm of farmers to grow tomatoes. According to the survey, the incidence of tomato late blight in the region generally suffer about 15%, while in late 2002 when the tomato is treated by spraying?