红铃虫是我区棉花蕾铃期的主要害虫之一,其中三代红铃虫发生量大,为害最重,治好这一代,不仅有利夺取当年棉花高产,而且还能压低越冬基数.但这时棉田早已封行,喷液防治机械损伤严重,如遇连续秋雨,防治更加困难,成为长期不能控制红铃虫为害的重要原因之一.所以过去虽经喷液防治,一般年份损失皮棉仍达5—10%,为解 Red bollworm is one of the main pests in cotton bud bolling period in our district, of which three generations of pink bollworm occurs in large quantities and harms the most, so it is not only advantageous to seize the high yield of cotton in that year, but also to lower the base of winter. When the cotton field has long been sealed line, spray prevention and control of mechanical damage, in case of continuous autumn rain, prevention and control more difficult to become a long-term control of pink bollworm harm one of the important reasons. 5-10%, for the solution