综合防治梨树红蜘蛛１９９３年库尔勒香梨基地之一的三十团的５０００亩梨园，遭受了种植香梨以来罕见的红蜘蛛为害，减产２５０吨，造成经济损失８５万元以上。对此，该团积极采取以农业防治为主，化学防治为辅的综合防治方法，收到较好的效果。具体做法是：一农业防治方... Comprehensive control of pear red spider In 1993, one of Korla fragrant pear base thirty groups of 5,000 acres of pear orchard suffered from the planting of pear rare red spider damage, cut 250 tons, resulting in economic losses of 850,000 yuan. In response, the regiment actively adopted a comprehensive prevention and treatment approach that focused on agricultural control and supplemented by chemical prevention and control and received good results. The specific approach is: an agricultural control side ...