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Phytophthora megakarya (black pod of cocoa)
Black pod disease of cocoa in West Africa, caused almost exclusively by P. megakarya, still remains one of the most serious constraints on cocoa...
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Phytophthora vignae (Phytophthora stem rot of cowpea)
Under favourable environmental conditions and in a susceptible cultivar, losses caused by P. vignae in cowpea can reach 100% (Purss, 1957; Davis et...
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Phytophthora colocasiae (taro leaf blight)
This disease can lead to a 30-40% crop loss in heavily infected taro fields (Jackson et al., 1975). The fungus is widespread in South-East Asia and...
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Aphanomyces astaci
A. astaci is the cause of crayfish plague in freshwater crayfish species susceptible to the disease, such as European and Australian...
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Phytophthora infestans (Phytophthora blight)
Introduction Late blight of potatoes or tomatoes can be a devastating disease with dramatic and disastrous economic consequences. It...
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Phytophthora cinnamomi (Phytophthora dieback)
P. cinnamomi is a soilborne pathogen that is now widely established in many parts of the world. Initial long-range spread is likely...
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Phytophthora ramorum (sudden oak death (SOD))
Phytophthora ramorum is considered an invasive species due to its ability to spread, persist, and reproduce in new environments. Its...
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Plasmopara halstedii (downy mildew of sunflower)
As the majority, if not all, of systemically infected plants either die prematurely or hardly produce viable seed, they make no contribution to...
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Plasmopara viticola (grapevine downy mildew)
P. viticola has caused significant impacts on grape production since the 1800s. During the early culture of European varieties in the USA, yield...
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Phytophthora cambivora (root rot of forest trees)
P. cambivora is an invasive species that persists and spreads in different environments. Its invasiveness is increased by its capacity to survive...
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