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１美国山核桃发生一种新腐烂病美国乔治亚州是山核桃的主要产区，于１９８８年９月中，在该州中部的Ｂｙｒｏｎ镇附近发现此病。一些果园因病产量损失５０％或更多，也明显影响质量。此病也发生于东南部Ｐｅｃａｎ镇的３个主要生产品种上。此病多在久雨后发生，引起果实快...
1 A New Rot Disease Occurred in Pecan Hickory Georgia, the principal producing area for hickory, was discovered in mid-September 1988 near the town of Byron in the central part of the state. Some orchards lose 50% or more of their disease output and also have a significant impact on quality. The disease also occurs in three major production varieties in Pecan town in the southeastern part of the country. The disease occurs after a long rain, causing the fruit fast ...