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柑橘在生长过程中,有一类危害较大的害虫即介壳虫,其中以矢尖介较为常见。矢尖介又名箭头介,属同翅目盾介科,被橘农称为柑橘上最顽固的害虫,繁殖快、世代重叠危害,因虫体有蜡质,一般农药防治效果不理想,受害柑橘树势衰弱,叶片黄化脱落,新梢容易枯死,坐果率不高,产量下降,果实品质低劣。在大发生的年份,如任其危害,1~2年之内有柑橘全园死亡的危险。介壳害虫的共同特点是雌雄异形,雌虫有发达的口器,无翅,体壁坚韧或柔软,体外披有蜡粉或坚硬的蜡质介壳
In the process of citrus growth, there is a kind of harmful insects, namely scale insects, of which Yajian mediated more common. Yajian referral arrow referrals, belonging to the Homodopa Shield Medico, was orange farmers as citrus most stubborn pests, multiply fast, generations of overlapping hazards, due to wax body insects, the general effect of pesticide control is not ideal, the victims Citrus trees weak, leaves yellow off, the new shoots are easy to die, fruit setting rate is not high, the decline in production, poor quality of the fruit. In the year of great occurrence, if allowed to endanger its own, within 1 to 2 years, the danger of the death of citrus garden. Common features of shell pests are dioecious, female developed mouthparts, wingless, body wall tough or soft, in vitro Phytosomes or hard wax shell