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今年迁飞性害虫小地老虎诱蛾量大,明显高于常年。目前,各地小地老虎逐步进入产卵盛期,部分地区出现幼虫危害。近期,全国农技中心综合分析当前虫情、苗情以及未来一段时间气象条件,预计今年小地老虎在华北、东北、西北和黄淮局部地区偏重发生,北方其他地区中等或中等以下程度发生,主要为害苗期玉米,发积约5000万亩。
This year migratory pest small land tiger large amount of moths, significantly higher than the perennial. At present, the local small tiger gradually entered the peak of laying eggs, larvae appear in some areas. Recently, the National Agricultural Technology Center comprehensive analysis of the current situation of insects, seedlings and meteorological conditions for some time in the future, this year is expected to small tiger in North China, northeast, northwest and Huanghuai emphasis on local areas, other parts of the northern region to moderate or below degree, The main damage to seedling corn, about 50 million mu area.