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Gummy stem blight on a squash plant.

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 on rainfall and dew periods.… 

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 is the most common species… 

powdery mildew photo on watermelon leaf

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 gummy stem blight.1… 

Assassin bug feeding on prey on a leaf.

Common Natural Enemies of Brassica Insect Pests

Numerous species of natural enemies can be found in brassica fields preying on insect pests. This article describes common natural enemies and how they feed or develop on the pests they affect. Growers will benefit… 

A field of collards.

Scouting for Insect Pests in Brassica Crops

Scouting is the foundation of integrated pest management programs. This article describes how to scout brassica crops effectively and outlines two commonly used methods for making responsible treatment decisions: individual treatment thresholds and the presence/absence… 

Cabbageworm on a leaf.

Identification of Common Insect Pests of Brassica Crops

Brassica crops are susceptible to feeding damage from many chewing and sucking insect pests. This article describes identification features and biological information needed to help growers correctly identify common insect pests of brassicas. Introduction Crops…