抓好杂交稻制种田后期飞虱的防治

• 作 者: 彭华碧
• 机 构: 丹棱县种子公司
• 出 处: 四川农业科技
• 发表日期: 1995年04期
• 关键词: 杂交稻制种 小球菌核病 稻株 生长受阻 优乐得 栽插密度 基部 黑肩绿盲蝽 纵卷叶螟 制种田

抓好杂交稻制种田后期飞虱的防治杂交稻制种田后期主要受自背飞虱和褐飞虱为害。以成虫和若虫群集稻株基部，刺吸水稻汁液，产卵时将稻组织划破产于划口内；伤口有利于小球菌核病侵染和为害，受害轻者下部叶片枯黄。千粒重减少，秕谷率增加。严重时生长受阻，叶片大量枯黄...

Do a good job hybrid rice farming late rice planthopper control Hybrid rice farming late mainly by the backstreet planthopper and brown planthopper damage. In order to insects and nymphs clustered base of rice plants, thorn sucking rice juice, spawning rice tissue will be drawn in the draw row within the mouth; wounds are conducive to small ball sclerotinia infection and damage, victims of light brown lower leaves. Thousand grain weight reduction, increase the rate of stoloniferous. Serious growth retardation, leaves a lot of yellow ...