近年我县地膜西瓜、香瓜种植面积逐年扩大,但苗期害虫(黑绒金龟、蒙古灰象甲、网目沙潜等)危害严重,轻者缺苗断垄,重者绝收。防治苗期害虫已成为保全苗的关键。我们从1987年起试验采用向日葵毒苗防治瓜田苗期害虫,效果良好。1989年已在朱碌科、青峰山等乡镇推广,效果十分突出。 In recent years, our county plastic film watermelon, melon planting area expanded year by year, but the seedling pests (black cashmere, Mongolian gray weevil, net sand diving, etc.) serious harm, Seedling pest control has become the key to maintaining seedlings. We have been experimenting with sunflower seedlings in 1987 to prevent and cure melon seedlings pests, the effect is good. In 1989, Zhulu Branch and Qingfeng Mountain were promoted in towns and townships, with outstanding results.