Watermelon Fungicide Guide for 2022
Four foliar diseases reduce watermelon yields in South Carolina. Gummy stem blight and powdery mildew are the most common diseases in spring crops.1 Gummy stem blight is large, round spots on the...
Author: Anthony P. Keinath
Cucurbit Downy Mildew Management for 2022
The water mold cucurbit downy mildew affects cucurbits (vine crops in the squash family) in South Carolina every year, especially in summer and fall. Downy mildew spreads quickly on cucumber,...
Gummy Stem Blight on Watermelon and Muskmelon
Gummy stem blight is one of the most common foliar diseases on watermelon, muskmelon, honeydew, and other specialty melons in the southeastern United States. How severe the disease becomes depends...
Controlling Bacterial Spot on Tomato and Pepper
Growers in the southeastern United States often have problems with bacterial spot on tomato and pepper. Although four species of the Xanthomonas bacterium are involved, in most areas, X. perforans...
Powdery Mildew on Watermelon
Powdery mildew (caused by the fungus named Podosphaera xanthii) was consistently among the most prevalent diseases of watermelon in a survey of foliar diseases done in 2015 and 2016, second only to...
Identifying and Managing Wirestem on Vegetable Brassica (Cole) Crops
Wirestem is a disease of young vegetable brassica (cole crop) plants that affects both direct-seeded and transplanted crops. The primary symptom is dark lesions of varying depth and length on the...
Integrated Management for Fusarium Wilt of Watermelon
Fusarium wilt of watermelon is the most widespread and destructive disease of watermelon in the southeastern United States and other areas of the world. The causal fungus is named Fusarium oxysporum...
Managing Phytophthora capsici Diseases on Vegetables
Phytophthora blight, crown and root rot, and fruit rot are serious problems on cucurbit and fruiting (solanaceous) vegetables in the eastern half of the United States. Short vegetable crop...
Managing Southern Blight on Vegetable Crops
Southern blight is a disease of over 1,200 crops and weeds in the southern half of the United States. Among the vegetable crops affected are tomato, pepper, eggplant, snap bean, Jerusalem artichoke,...