Farm

Horticulture Station

Publication Date

2009

Abstract

Watermelon anthracnose, caused by the fungus Colletotrichum obriculare, is one of the most significant diseases of cucurbits in the U.S. Melcast is a disease-warning system that uses hourly leaf wetness and temperature data to help melon growers schedule fungicide applications for managing fungal diseases. Melcast translates hourly temperature and leaf wetness duration data into environmental favorability index (EFI) values. Fungicide applications are advised at intervals defined by epidemiological risk rating (EFI values) rather than time (days or weeks).

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

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