论文部分内容阅读
纺锤形锈病由 Cronartium fusiforme Hudgc.& Huntex Cumm 所引起的,通常被认为是南部最严重的林木病害。但它如何蔓延以及在财政上有怎样的影响?为了研究和有效防治病害,适当地拨给资金一定能解决这些疑问。我们关于纺锤形锈病发病情现的报导资料是在南卡罗来纳,佐治亚和佛罗里达州第四次森林调查中收集的。这些资料破引伸到整个南部,以估阶病害对财政上的影响。每年遭受的美元损失给人以很深刻的印象。
Fusiform rust is caused by Cronartium fusiforme Hudgc. & Huntex Cumm and is generally considered to be the most severe forest disease in the south. But how does it spread and what financial implications? Properly allocated funds will certainly address these concerns in order to study and effectively prevent disease. Our coverage of the occurrence of spindle rust was collected from the Fourth Forest Survey in South Carolina, Georgia and Florida. The information has been extended to the entire south to assess the financial impact of diseases. The loss of the U.S. dollar suffered each year is very impressive.