近年来,板栗红蜘蛛在我国板粟的主要产区河北省危害日趋严重,大发生年份可因此减产15～20%。防治上主要使用氧化乐果直接涂茎,但效果不够理想,而常量喷雾又由于山区缺水,不易进行。为此,我们在河北省迁安县北屯村运用超低量喷雾技术,并改进涂茎方法,开展了防治试验,取得了良好的防治效果。采用的方法是:(1)加缓释剂涂茎。用一份聚 In recent years, chestnut red spider in China’s main producing areas of millet in Hebei Province, more and more serious harm, the occurrence of major occurrences can therefore cut 15 to 20%. Prevention and treatment of the main use of omethoate directly coated stems, but the effect is not ideal, and constant spray due to lack of water in the mountains, not easy to carry out. To this end, we use ultra-low volume spray technology Beitun Village, Qian’an County, Hebei Province, and improve the method of spraying stems, prevention and control tests carried out and achieved good control effect. The method used is: (1) add slow release agent coated stems. Use a poly