自从出版 Tucker 的关于疫霉菌属的专述以来的三十八年里,由于各方面的努力,而使这个属的一些种的发生、繁殖和致病的因素有所了解。从众所周知的马铃薯晚疫病到很少知道但同样为害的可可黑荚病及大多数的严重的根腐和溃疡问题都有由 phyetophthoraspp 导致为害的。我们必须指出这些病原研究的一些重要进展,包括孢子囊、厚垣印孢子的产生和萌发中的重要因素;这些结构在发病中的作用和腐生现象的研究。各种作用关系适用于控 Thirty-eight years since the publication of Tucker’s book on Phytophthora, various aspects of its genesis, reproduction and disease have been understood due to various efforts. Phytophthoraspp is known to cause damage from the well known potato late blight to the less known but equally harmful cocoa black pod disease and most of the serious root rot and ulcer problems. We must point out some important advances in the study of these pathogens, including the important factors in the production and germination of sporocysts, cryptochronas, and the role of these structures in pathogenesis and saprophytic phenomena. A variety of roles for control