蜜柚及柑桔、脐橙冬季在采果后,果园通常尚存一些如罹患炭疽病、溃疡病、黄斑病、疮痂病等的病叶和部分红蜘蛛残留,而枝条也有部分残留介壳虫及苔藓危害状。因此,每年应在采果后进行冬季清园。清园历年来均使用松脂合剂或波尔多液、石硫合剂,且因以上各剂均属碱性农药,喷施时须选用较适宜的天气,以避免产生药害,如用波尔多液或石硫合剂,宜选晴天施 Pomelo and orange, orange In winter, after harvesting, the orchard usually has some remaining diseased leaves and some spider mites such as anthracnose, ulcer disease, maculopathy, scab and so on, while the branches also have some residual scale insects and moss Harmful. Therefore, a winter clearing should be carried out every year after picking fruit. Qingyuan over the years are using rosin mixture or Bordeaux mixture, lime sulfur mixture, and because these agents are alkaline pesticides, spraying should be used when the more appropriate weather to avoid phytotoxicity, such as with Bordeaux mixture or stone sulfur Mixture, should choose sunny facilities