Charles W Averre, Extension Plant Pathologist Cantaloupes are affected by several diseases which often cause serious crop losses and steps must be taken to control them. Often diseases may not be present, however, commercial growers should always employ preventative measure that will help avoid the diseases or reduce their severity if they appear.
Diseases are usually more frequent and serious in late season and during periods of high humidity.
Diseases are a major cause for the rapid decline of cantaloupes after the first harvest. A total disease control program, as described in this publication, along with good cultural practices, as described in Horticultural Leaflet Number 8, will increase yields and quality and extend the productive life of the plant. The immature nematodes enter young roots to feed and cause galls or swellings on the roots. Where the disease is severe, the plants are stunted, frequently wilt on hot days, and may die prematurely. Crop rotations of 2 to 4 years with non- susceptible corn, oats, and fescue will reduce the nematode problem.