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受热带风暴“碧利斯”的影响,7月中旬,湖南省出现全省范围的强降雨天气。受气候影响,湖南省水稻“两迁害虫”(稻飞虱、稻纵卷叶螟)大量迁入,虫量急剧上升。据湖南省各地调查,稻纵卷叶螟田间蛾量平均达1630头,是2005年同期的2倍以上,幼虫量平均达22250头,是2005年同期的3倍,卵量平均在200粒以上;稻飞虱田间虫量平均百丛量达1540头,是2005年同期的2.3倍,并且以短翅型成
Affected by the tropical storm “Bilis”, in mid-July, there appeared heavy rainfall throughout the province in Hunan Province. Affected by the climate, a large number of migratory rice and “two migration pests” (rice planthoppers and rice leafroller) in Hunan Province migrated in large quantities, and the amount of pests increased sharply. According to the survey in various parts of Hunan Province, the average amount of moth in the rice leafroller was 1,630, more than 2 times that of the same period of 2005, with an average of 22250 larvae, which was 3 times that of the same period in 2005 with an average of 200 eggs or more The average number of insect pests in the field of rice planthoppers was 1540, 2.3 times that of the same period in 2005,