麦田红蜘蛛的发生和防治

• 作 者: 王翠卿
• 机 构: 无极县农技中心,
• 出 处: 河北农业
• 发表日期: 2008年04期
• 关键词: 红蜘蛛 麦田 高温天气 春旱 水浇地 丘陵 阴湿 冬旱 黄白色斑 拔节期

春季,为害麦田的红蜘蛛,主要有麦圆蜘蛛和麦长腿蜘蛛,麦圆蜘蛛喜阴湿,怕高温、干燥,多分布在水浇地或潮湿阴凉的麦地,一般发生在前期天气凉爽情况下。麦长腿蜘蛛喜温暖,干燥,多分布在平原、丘陵、山区、干旱麦田,一般春旱少雨年份易于猖獗成灾,常常发生在后期高温天气情况下。红蜘蛛以成

In spring, the red spiders that harm the wheat fields mainly include the wheat round spiders and the wheat long-legged spiders. The wheat round spiders like to be wet, afraid of high temperature, dry, and mostly distributed in irrigated fields or damp and cool corn fields, generally occurring in the early days of cool weather Case. Wheat long leg spiders like warm, dry, and more distributed in the plains, hills, mountains, dry wheat fields, the general dry and rainy years prone to rampant disaster, often occurs in the late hot weather conditions. Red spider to become