Monthly Archives: June 2016

How to Monitor and When to Control the Early Abundance of Thrips on Soybean Fields

Insect Description and Damage While monitoring an experimental soybean field in Princeton, I have not noticed major insect pest problems during the earlier stages of soybean growth, with the exception of thrips. Thrips are tiny, slender insects (less than 1/16

Posted in Grains

Tobacco Blue Mold Moving Up East Coast

Blue mold of tobacco was found last week in Caswell County, located in central North Carolina. This is further north than its previous known locations in Florida and Georgia. The pathogen that causes blue mold is an obligate oomycete, meaning

Posted in Tobacco

Vegetable Diseases to Scout for: Cucurbit Downy Mildew

About this time last year, our first Kentucky cucurbit downy mildew identification occurred. As the most economically important disease of cucurbits in Kentucky, it is not a matter of if commercial growers and homeowners will experience downy mildew, it is a

Posted in Vegetables

Vegetable Diseases to Scout for: Center Rot of Onion

Onion growers in Kentucky should have their eye out for bacterial rots of onion this week, particularly center rot of onion. Bacterial rots are common diseases of onions in Kentucky, and homeowners or commercial growers not actively using preventative practices

Posted in Vegetables

Striped Blister Beetles Defoliate Tomatoes & Potatoes

The striped blister beetle is usually recognized as a potential toxic contaminant in alfalfa in mid-July, but potatoes and tomatoes are also high on its food list. In fact, one of its former common names is “old-fashioned potato bug.” This

Posted in Vegetables

Spotted Wing Drosophila Activity Increasing

Spotted wing drosophila (SWD) activity is beginning to increase with positive samples identified from several western and southern Kentucky counties, as well as from one in central Kentucky (Figure 1). We are still collecting mostly negative samples from central and

Posted in Fruit

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights from the University of Kentucky Plant Disease Diagnostic Laboratories represent recent sample submissions from field crops, fruit, vegetables, and ornamentals. Diseases diagnosed on agronomic crops during the past week have included anthracnose, common leaf spot,

Posted in Plant Disease Diagnostic Lab