近年来 ,在我地市场上销售的脐橙很大部分果实外表皮上都存在着清洗不掉的褐色或灰褐色斑点、斑纹或龟裂状疤痕 ,农民俗称“花斑果”。严重影响了脐橙果实的外观品质 ,造成果实商品性下降 ,销售困难 ,果农收益降低等。为有效地克服“花斑果”的产生 ,笔者对部分果园进行了调查 In recent years, most of the navel oranges marketed in our market have brown or taupe spots that can not be washed on the outer skin of the fruit, and streaks or cracked scars. Seriously affected the appearance of the quality of navel orange fruit, resulting in decline in the commercial nature of fruit, sales difficulties, reduce the income of farmers and so on. In order to effectively overcome the “piebald”, I conducted a survey of some orchards