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棉蚜是棉花生产上的大敌,在迁飞时有趋黄习性。1976年4月下旬我们利用废旧材料试制黄牌诱杀棉蚜。方法是:用细木条或竹片做成2×2尺的方框,两面贴黄纸,再用废旧薄膜蒙在黄纸上,在薄膜上涂抹机油,方框中央绑一根细木棍,插入棉田即可。第一次制黄牌24个,分插在3亩棉田内,黄牌总面积96平方尺,插牌24小时后调查,共诱杀翅蚜9,600头,插牌区内翅蚜比区外减少70％,第三天调查共诱杀翅
Cotton aphid is the enemy of cotton production, there is yellow habit when moving. In late April, 1976, we made use of scrap materials to trial yellow cards to kill cotton aphids. Method is: made of thin strips of wood or bamboo 2 × 2 feet of square, yellow paper on both sides, and then discarded on the yellow paper waste film, apply oil in the film, the central frame to tie a thin wooden stick , Insert the cotton field can be. The first yellow card 24, sub-inserted in 3 acres of cotton fields, a total area of 96 square feet of yellow cards, insert the investigation after 24 hours, a total of trap 9,600 winged aphids, intervene area winged aphids than 70% The third day of the investigation a total of luring wings