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Phytophthora capsici Leonian is an economically important soilborne pathogen of summer squash ( Cucurbita pepo L.) and other vegetable crops in many areas of the world ( Babadoost, 2004 , 2005 ; Babadoost and Zitter, 2009 ; Hausbeck and Lamour

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; Morrison and Skaggs, 2004 ). Chile pepper production can be dramatically reduced by a soilborne disease called phytophthora blight caused by the oomycete Phytophthora capsici . In 1922, P. capsici was first described as the pathogen of chile pepper in

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Phytophthora blight caused by the oomycete Phytophthora capsici Leon. is a very destructive disease and was first described attacking chile pepper plants in New Mexico ( Leonian, 1922 ). The pathogen produces several disease syndromes: foliar

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Phytophthora capsici Leonian infects a wide range of crop species including ornamental and vegetable solanaceous crops ( Enzenbacher et al., 2015 ; Foster et al., 2012 ; Naegele et al., 2014 ). Without effective disease management strategies, the

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Phytophthora capsici Leonian is a major pathogen with a wide host range, including vegetable crops belonging to Solanaceae, Cucurbitaceae, Leguminosae, and Brassicaceae families ( Krasnow and Hausbeck, 2015 ; Lamour et al., 2012 ). It is an

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Worldwide vegetable production valued at over $1 billion each year is threatened by phytophthora blight ( Lamour et al., 2012 ). This devastating disease is caused by P. capsici, a soil-borne oomycete pathogen that can infect a wide variety of

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acreage and has an estimated value of over $12 million ( USDA, 2012 ). Phytophthora capsici , the causal agent of phytophthora blight, causes serious economic losses to many Solanaceae and Cucurbitaceae crops in many vegetable production regions of the

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pepper varieties with tolerance to the disease phytophthora blight, whereas it is less common on more susceptible varieties ( Kline et al., 2011 ). Phytophthora blight is a soilborne disease caused by the oomycete Phytophthora capsici ( Leonian, 1922

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( Bowers and Mitchell, 1991 ; Ristaino, 1991 ). Irrigation or surface runoff water infested with Phytophthora capsici propagules serves as a source of secondary inoculum ( Gevens et al., 2007 ). Infected pepper plants develop irreversible wilt and plant

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than rockwool ( Islam et al., 2002 ). Population densities of Phytophthora capsici , P. nicotianae , P. aphanidermatum , and P. ultimum were reduced by 76%, 80%, 32%, and 11%, respectively, when tomatoes were grown in coir compared with peat. In

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