美国马铃薯面临晚疫病威胁马铃薯研究专家称,现在预防马铃薯晚疫病为时不早。去年在北美洲几个种用马铃薯生长区监测到晚疫病的发生,将增加今年商业化种植的马铃薯感染此病的风险。自从150年前马铃薯瘟疫造成的饥荒爆发后,晚疫病就一直是世界上严重的马铃薯病害之一。现在,真菌性病害可能已经出现,而凉爽湿润的天气有利于病害的扩散,有可能出现大面积的爆发。去年美 Potato in the United States threatens with late blight Potato experts say it is not too early to prevent late blight in potatoes. The occurrence of late blight that was detected in several potato growing areas in North America last year will increase the risk of this year’s commercially planted potato infecting the disease. Late blight has been one of the world’s most serious potato diseases since the famine erupted 150 years ago after the potato plague broke out. Now, fungal diseases may have emerged, while cool and wet weather is conducive to the spread of disease, there may be a large area of ​​the outbreak. Last year the United States