Fusarium Wilt ( Fusarium oxysporum f . sp . elaeidis ) In Oil Palm : A Rather Weak Pathogen ?

Content Provider	Semantic Scholar
Author	Chinchilla, Carlos Ml.
Copyright Year	2011
Abstract	Fusarium wilt in oil palm (Fusarium oxysporum f. sp. elaedis) was initially described by Wardlaw in Zaire (Wardlaw 1946). The pathogen has been associated with important losses in some orchards (15-25 %) in Central and West Africa, but average incidence for the whole continent may be well below 1% (G.Blaak, former FAO official, personal communication), despite the poor agronomic management frequently found on African plantations. In America, the pathogen has been reported from Para (Brazil) and Quinindé (Ecuador) (Turner 1970; Van de Lande 1985; Renard and Franqueville 1989; Franqueville and Renard 1990, Mariau et al. 1992; Franqueville and Diabaté 2004). Apart from the initial reports of the presence of the disease in some plots of a few plantations in the above-mentioned two countries in America, no further information has been published on any important economic impact on oil palm plantations where the pathogen was found. It even looks as though there was little spread beyond the original spots where the first infected plants were found, indicating the very low aggressiveness of this pathogen, at least in the American tropics. It is normally assumed that the fungus reached America from Africa via infected seeds or in contaminated leguminous seeds used as cover crops in most oil palm plantations (Franqueville and Diabaté 2004).
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Language	English
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Resource Type	Article