Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of leaf spot on Cucurbita pepo caused by Fusarium incarnatum-equiseti species complex in Jamaica.

Abstract

Yellow-orange-fleshed varieties of Cucurbita pepo, known as curry pumpkin, are produced in Jamaica, and in particular the variety Bodles Globe is grown for export. Since 2012, chlorotic or necrotic leaf spot symptoms have been observed on approximately 60% of farms in the major production areas (Clarendon, Portland, St. Ann, St. Catherine, St. Elizabeth and St. Mary). To determine the causal agent, 70 leaves of diseased pumpkin (cv. Bodles Globe) were collected from fields across the six major production areas. Based on the results of morphological observations, DNA sequence analysis and pathogenicity tests, the causal agent was identified as a member of Fusarium incarnatum-equiseti species complex (FIESC). This is thought to be the first confirmed report of a member of the FIESC on C. pepo in Jamaica.