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我场有200亩成年桃园,分6片种植。自1967年来,在徐家埠片桃园中的桃果发现畸形,以后逐年增多,1971年发展到溪南、桐柏坑、牛奶房等四个片的桃园,占总面积的50％。一、畸形果的症状据1971～1973年三年的观察,当桃果有蚕豆大小时,开始出现畸形症状:桃果出现不规则的局部倒毛,倒毛底色呈暗绿;随着果实的增大,由暗绿转为深绿,并开始脱毛,出现硬斑,一个桃果上约有2～6处;也有的呈缝合线,显著不匀称。桃果上硬斑处,发育缓慢,以后逐步
My field has 200 acres of adult Taoyuan, divided into 6 pieces planted. Since 1967, peach fruits in the Taoyuan Peach Garden in Xujiabu County have been found deformity and have been increasing year by year since then. In 1971, Taoyuan County has developed into four areas of Xincun, Tongbaikeng and Milk House, accounting for 50% of the total area. First, the symptoms of deformity fruit According to the observation of 1971 ~ 1973 three years, when the peach fruit has the size of broad beans, malformations began to appear: peach irregular local hair down, the bottom of the hair was dark green; with the increase of fruit Large, dark green to dark green, and the beginning of hair removal, there are hard spots, a peach about 2 to 6; some were sutures, significantly uneven. Peach fruit on the hard spot, slow development, and gradually after