Invasive Species Compendium

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Abstract Full Text

First record of Fusarium oxysporum f.sp. radicis-lycopersici in Malta.

Abstract

Crown and root rot symptoms were observed on tomato (Lycopersicon esculentum F1 hybrid Thomas) in a greenhouse at Wardija, Malta, in November 2004. Symptoms included stem cankers starting mostly at the soil level and extending for 5-20 cm above it. Most severely affected plants wilted and died. Fusarium oxysporum was constantly isolated from rotten roots and crowns and from stem cankers. Analysis of cultural, morphological and pathogenicity characteristics identified the causal agent as F. oxysporum f.sp. radicis-lycopersici. This is thought to be the first report of F. oxysporum f.sp. radicis-lycopersici in Malta.