冬去春来,气温逐渐上升,许多越冬柑桔病虫开始活动、繁殖和为害。柑桔发芽、抽梢产生大量幼嫩枝叶为柑桔红蜘蛛和四斑黄蜘蛛等提供了丰富的食料,花蕾蛆、吹绵蚧、矢尖蚧、糠片蚧、红蜡蚧、黑刺粉虱、天牛类、吉丁虫类、蚜虫和卷叶蛾等害虫相继发生,溃疡病、疮痂病和炭疽病等病害 Winter to spring, the temperature gradually increased, many winter citrus pests began activities, reproduction and damage. Citrus germination, shoot tip produce a large number of young branches and leaves for citrus red spider and four spot yellow spider and so provides a wealth of food, bud maggot, blowing cotton Kuwana, Agkistrodon elegans, bran scale, red wax scale, black thorn powder Pests such as louse, cerambycidae, jejuni, aphids, and leaf roller moth have occurred in succession, including ulcer, scab and anthrax