Abstract
Abstract: F. oxysporum is a widespread soilborne plant pathogen, which causes diseases such as vascular wiltand crown and root rot. The species delimitation has been defined according to morphological andphysiological characteristics; with strains of F. oxysporum classified into formae speciales on the basis f opathogenicity on a particular host plant and races based on differences in virulence to given host cultivars.There are over 120 described formae speciales and races. One of these formae speciales is Fusarium oxysporum Schlect f. sp. radicis-lycopersici Jarvis and Shoemaker, which causes Fusarium crown and root rot (FCRR) oftomato. FCRRis one of the most damaging soil-borne diseases of tomato and becoming more common n igreenhouse and field tomato production. The disease occurs in both the greenhouse and the field on tomatoworldwide and causes significant losses in tomato production. In closed systems, with recirculation of nutrientsolution and rock wool as a growing medium, crown and root rot of tomato can cause serious problems. Thisreview discussed biology, ecology and epidemiology of the fungus and management options; cultural control,chemical control, biological control and integrated control in managing FCRR.
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