论文部分内容阅读
稻纵卷叶螟是亚洲稻米产区的重要害虫,主要为害区为我国、日本、南亚及东南亚各国,澳大利亚、马尔加什及夏威夷等地也有发生.分布范围大致在南纬30°到北纬45°之间的高温多雨的热带和亚热带地区及夏季高温多雨的温带地区.我国西南、中南、华东、华北、东北(包括台湾在内)24个省市区都有为害,只有西北地区和西藏未见报导.过去,稻纵卷叶螟在我国各稻区多为间歇性或偶发性害虫.1965年以来,大发生频次增加,已成为水稻生产上主要常发性害虫之一.
The rice leaf roller is an important pest in the rice producing area of Asia, and the main harmful areas are also occurred in China, Japan, South Asia and Southeast Asian countries, Australia, Malagasy and Hawaii etc. The distribution range is roughly from latitude 30 ° north to latitude 45 ° hot and humid tropical and subtropical regions and summer hot and rainy temperate regions.China’s southwestern, central and southern, eastern, north, northeast (including Taiwan) 24 provinces and municipalities are harmful, and only the northwestern region and Tibet See reports. In the past, the rice leaf roller in the rice area in our country mostly intermittent or sporadic pests. Since 1965, the frequency of occurrence has increased, has become one of the major pests in rice production.