根据国内外的研究,褐稻虱具有远距离迁飞特性,并推测我国每年初次虫源主要来自东南亚各国稻区。我省地处祖国南端,毗邻东南亚各国,是迁飞入境的第一站,弄清我省褐稻虱的来龙去脉,对我国褐稻虱迁飞规律的研究和发生预测上有着重要意义。 According to the research at home and abroad, the brown planthopper has the characteristics of long-distance migration, and it is speculated that the primary insect source in our country is mainly from the rice fields in various Southeast Asian countries. The province is located in the southern tip of the motherland, adjacent to all countries in Southeast Asia, is the first leg of the emigration, find out the ins and outs of the brown planthopper in our province, on China’s brown flies flew rule research and prediction is of great significance.