棉花苗期应切实注意防治棉蓟马

• 作 者: 王智广
• 机 构: 馆陶县东马头供销社
• 出 处: 河北农业科技
• 发表日期: 1996年03期
• 关键词: 棉蓟马 棉花苗期 花蓟马 无头 真叶 子叶 顶尖 生长点 寄主植物 幼苗

棉蓟马是棉花苗期主要害虫之一。近年来,由于忽略对棉蓟马的防治,导致棉蓟马回升为害。据调查,1995年棉蓟马为害地块约占60％左右,被害株率一般为10～30％,重者达50％以上,直接影响棉花的产量和经济效益。 一、为害情况 棉花蓟马主要为害棉苗的子叶、嫩小真叶和顶尖。锉伤幼苗生长点,形成“无头棉”死亡,造成缺苗;

Cotton thrips are one of the major pests in cotton seedling. In recent years, due to ignore the control of thrips thrips, causing the thrips to rebound damage. According to the survey, about 50% of cotton thrips damage occurred in 1995, and the rate of victimization is generally 10% to 30%, with a weight of more than 50%, which directly affects the output and economic benefits of cotton. First, the damage situation Cotton thrips mainly damage cotton seedlings cotyledons, tender little leaves and top. Rounded ramet growth point, the formation of “headless cotton” death, resulting in lack of seedlings;