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江西省植保站,今年初发布的1999年和2000年全省稻棉主要病虫发生情况和主要农作物病虫发生趋势预报。江西省1999年水稻病虫发生总体情况是:早稻为中等发生年、晚稻为偏重发生年;晚稻明显重于早稻、虫害显著重于病害。其发生特点是:早稻钻蛀性害虫——代二代螟明显偏重,流动性病害——稻瘟病和迁飞性害虫——稻飞虱、纵卷叶螟等重大病虫发生和为害程度明显轻于1997年和1998年;而晚稻虫害重发,病害偏轻,局部性的侵
Plant Protection Station in Jiangxi Province, the major pests and diseases of rice and cotton in the whole province in 1999 and 2000 and the trend forecast of main crop pests and diseases that were released earlier this year. The general situation of rice diseases and pests in Jiangxi Province in 1999 was that the early rice was moderately annual and the late rice was the year with special emphasis on occurrence. The late rice was significantly heavier than the early rice, and the pest was significantly heavier than the disease. The occurrence characteristics of the pests were as follows: the borer pests of early rice generation were obviously biased on behalf of the second generation, and the occurrence and damage of the major diseases and pests such as the blast disease and the migratory pests, such as rice planthoppers and leaf roller, were significantly Lighter than in 1997 and 1998; and late rice pests re-emergence, partial disease mild invasion