1用“机福乐”防治蚜虫和红蜘蛛机福乐是复配剂农药，所用农药及最佳配比浓度为机油乳剂80倍、福美砷100倍、氧化乐果15co倍。可于3月中下旬，采用田间喷雾，其防效优于石流合剂，据调查对蚜虫和红蜘蛛的防效分别为98％和85％，石流合剂分别为47％和30％。使用好处是：残效期氏 1 “Fuk fun” to prevent aphids and spider mites Fukuda is a compound pesticide, pesticide and the best ratio of 80 times the oil emulsion, Fumei arsenic 100 times, 15 times the omethoate. May be in late March, the use of field spraying, the control effect is superior to stone flow mixture, according to the survey of aphids and spider mites control effect was 98% and 85%, rock flow mixture were 47% and 30%. The use of benefits are: residual efficiency of the term