小造桥虫发生规律及測报方法商榷

• 作 者: 郑永善
• 出 处: 植物保护
• 发表日期: 1964年02期
• 关键词: 棉小造桥虫 黄河流域棉区 食叶性害虫 井灌区 大型灌区 棉叶 旱塬 中棉 陕西关中 棉棉

棉小造桥虫(Anomis fava F.)系食叶性害虫,近年来黄河流域棉区普遍发生。陕西关中一般以大型灌区、低湿地受害最烈,盛发期棉花百株约有幼虫79—520头;其次为井灌区,百株42—272头;旱塬区较轻,百栋11—91头。室内测定幼虫一生约食鲜棉叶0.9476克,约相当两个中等叶片。1—6

Anomis fava F. is a leaf-eating pest. In recent years, cotton area in the Yellow River Basin has been widespread. In Guanzhong, Shaanxi Province, the largest irrigation area is most heavily affected by low-lying wetlands. In the flourishing period, about 79-520 larvae are found in one hundred cotton plants, followed by well irrigation areas with 42-272 plants per 100 ha. head. Determination of life larvae about eating fresh cotton leaves 0.9476 grams, about the equivalent of two medium leaves. 1-6