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根据病虫基数、天气预报、作物长势及天敌等情况,结合历史资料,经充分会商,对下半年主要作物病虫发生趋势做如下预报:一、主要农作物病虫预报(一)重大病虫1、二点委夜蛾:预计全省中等偏轻发生,局部地块中等发生,发生面积450万亩,接近去年,轻于2011年。三代幼虫会转移到花生、大豆、棉花等作物田为害。2、三代粘虫:总体偏轻发生,局部地区有暴发可能,发生面积470万亩。
According to the pest and insect base, weather forecast, crop condition and natural enemies, combined with historical data, after full consultation, the trend of main crop pests and worms in the second half of the year is predicted as follows: I. Prediction of major crop pests and diseases 1, two-point members of the night moth: the province is expected to occur moderately light, local mass occurred in mid-level, occurred an area of 450 mu, close to last year, lighter than in 2011. Three generations of larvae will be transferred to peanuts, soybeans, cotton and other crop damage. 2, the third generation of armyworms: the overall partial light, there may be outbreaks in some areas, an area of 470 mu.