瓢虫是人们比较常见的昆虫。其中有一种常在柑桔树梢上频繁活动,捕食桔蚜的,名叫异色瓢虫。在气候温和湿润的海南岛,桔蚜繁殖力强,是柑桔的主要害虫之一。桔蚜以成虫、若虫群集在柑桔枝梢、嫩叶上刺吸汁液,成年树及幼年树、苗木都有 Ladybugs are more common insects. One of them often active in the citrus treetops, predation of orange aphid, called Harmonia axyridis. In the mild and humid Hainan Island, orange aphid fertility, citrus is one of the major pests. Orange aphids to adults, nymphs clustered in citrus shoots, young leaves sucking juice, adult trees and juvenile trees, seedlings have