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1991年,对20ha 枣园进行了对硫磷微胶囊地面封闭法防治桃小食心虫试验,效果良好。试验分毒土式和喷撒式两种,均在越冬代幼虫出土盛期的6月20日进行。毒土式是将25%对硫磷微胶囊、水、细土按1:5:300的比例配制成毒土撒到树冠投影的地表,每株7.5～15kg,施后刨松拍实;喷撒式是将25%对硫磷微胶囊50倍液喷在树冠投影的地表,每株2.5kg。对照区在7月上中旬树冠喷撒5%氯氰菊酯50倍液。10月上旬枣果成熟期剖果调查统计。结果是:毒土式试验,效正效率为80.8%;喷撒式效果为90.7%,比对照区防治效果71%分别高9.8%和19.7%。与此同时,进行了防治投入与产出的经济效益
In 1991, 20ha jujube were parathion micro-capsule ground closed peach moth test, the effect is good. Test poisonous soil and spray two kinds, all in the winter of the larvae unearthed on June 20. Poisonous soil is the 25% parathion microcapsules, water, fine soil at a ratio of 1: 5: 300 formulated as toxic soil sprinkled crown projected surface, each plant 7.5 ~ 15kg, Sprinkle is the 25% parathion microcapsule 50 times sprayed in the crown projected surface, each plant 2.5kg. Control area in mid-July crown spraying 5% cypermethrin 50 times. Early October Jujube ripe fruit profile survey statistics. The results are: toxic soil test, the effective efficiency of 80.8%; spraying effect of 90.7%, 71% higher than the control area of 71% were high 9.8% and 19.7%. In the meantime, the economic benefits of prevention and control of inputs and outputs have been carried out