红蜡蚧(Ceroplastes,rubens Mask.)是柑桔主要害虫之一,遍及全国各柑桔产区。柑桔被害后,常大量发生煤病,成为“煤烟树”,影响光合作用进行,导致果实品质变劣,产量大减,叶落枝枯,树势衰弱。据我们1964年调查,被害树枯梢率增加10％左右,春梢抽发量约减少50％,单株产量一般只有几斤到10余斤。其发生规律,国内尚无系统完整的资 Ceroplastes (rubens Mask.) Is one of the major citrus pests, all over the country’s citrus growing areas. Citrus damage, often a large number of coal disease, a “sooty tree,” affecting the photosynthesis, leading to deterioration of fruit quality, yield reduction, dead leaves fall, shrubs weak. According to our survey in 1964, the rate of death of trees increased by about 10% and the amount of spring shoots drained was reduced by about 50%. The yield per plant was generally only a few pounds to more than 10 pounds. The law of occurrence, there is no systematic and complete domestic funding