江苏省稻苞虫发生规律和防治经验

• 机 构: 江苏省农林厅,华东农业科学研究所,
• 出 处: 农业科学通讯
• 发表日期: 1959年15期
• 关键词: 水稻主要害虫 大发生 灌桨 药剂防治 太仓县 茧蜂 分孽 寄生蝇 交界地区 游草

稻苞虫是我省水稻主要害虫之一,各稻区普遍发生,而徐、淮、盐“旱改水”新稻区及稻棉交界的稻区,危害最重。受害的水稻,不仅叶片残缺,植株矮小平稻穗变短,还延迟成熟,影响产量很大。据统计,常年减产10—20%,严重年减产达50%以上。例如在大发生的工953年,太仓县稻棉交界地区的稻田,不仅稻叶全被吃光,而且已灌桨的稻穗也被咬断落地,每

Rice insects is one of the main rice pests in our province, and rice fields are common occurrences. However, the rice fields affected by Xu, Huai, Salt, “drought and water change” and rice and cotton border areas are the most damaging. Injured rice, not only leaves incomplete, shorter plants Pingshui shorter ears, but also delayed the maturity, affecting the yield. According to statistics, perennial cut 10-20%, serious annual reduction of more than 50%. For example, in the Great Recession of 953, the paddy fields in the border area of ​​Taicang Rice and Dwarf not only eaten all rice in paddy fields,