Monthly Archives: August 2020

Expect an Early Invasion of Stink Bugs this Fall

Based on what I saw while entering my home this weekend, brown marmorated stink bug has begun the search for overwintering sites. This is about 11 days earlier than what I have seen before. So, if you have had problems

Posted in Household Pests

Foliar Diseases of Cucurbits (PPFS-VG-10)

Alternaria leaf blight, angular leaf spot, anthracnose, downy mildew, and powdery mildew are foliar diseases that commonly affect cucurbit vegetables in Kentucky.  Losses can occur in both commercial and residential plantings.  Vegetables in the cucurbit family include cucumber, gourds, muskmelon

Posted in Featured Pubs & Videos

2020 Insect Trap Counts

Trap counts for major insect pests are provided by the Kentucky IPM Program. Traps are located at the UK Research and Education Center in western Kentucky and the UK Spindletop Farm in Lexington.  Below are trap counts for the current

Posted in Insect Trap Counts

Spotted Corn Leaves: Disease or Something Different?

Over the past few weeks, there have been increased reports of spotting on corn leaves across the state. Symptoms include tiny tan to brown spots with a darker brown margin (Figure 1). These spots can be just a few spots

Posted in Grains

Protecting Pollinators from Pesticides

This past weekend, I looked at a colony of honey bees that had died; a large pile of dead bees were spread in front of the entrance with more dead bees on the bottom board. The dead bees had their

Posted in Beneficial Insects

Tomato Wilt Problems (PPFS-VG-15)

Tomato wilt problems that can occur in both residential and commercial plantings include diseases caused by fungi (Fusarium wilt and Verticillium wilt) and bacteria (southern bacterial wilt). In addition, wilting may be associated with an abiotic disorder (walnut wilt), which

Posted in Featured Pubs & Videos

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights have been compiled from samples submitted to the University of Kentucky Plant Disease Diagnostic Laboratories from August 1 to August 17, 2020. Diagnostic samples of agronomic crops have included Rhizoctonia web blight, summer black stem

Posted in Plant Disease Diagnostic Lab

2020 Insect Trap Counts

Trap counts for major insect pests are provided by the Kentucky IPM Program. Traps are located at the UK Research and Education Center in western Kentucky and the UK Spindletop Farm in Lexington.  Below are trap counts for the current

Posted in Insect Trap Counts

Sudden Death Syndrome of Soybean Being Observed in Some Soybean Fields

Disease Symptoms Symptoms of sudden death syndrome (SDS) of soybean have begun to appear over the last couple of weeks in Kentucky. Once soybean plants begin to go through reproductive growth stages, symptoms will first appear as yellow flecks that

Posted in Grains

Invasion of the Leafhoppers

Leafhoppers in Kentucky 2020 Kentucky is not known for its leafhoppers but ask anyone who has been outside this season and they will tell you Kentucky is full of them. Leafhoppers are found all across America but generally do not

Posted in General Pests

Cherry Leaf Spot (PPFS-FR-T-06)

Cherry leaf spot occurs on both sweet and sour cherry trees; however, it is considerably more serious on sour cherries. Ornamental flowering cherry trees can also be susceptible to this disease.  Premature defoliation from cherry leaf spot reduces flower bud

Posted in Featured Pubs & Videos

2020 Insect Trap Counts

Trap counts for major insect pests are provided by the Kentucky IPM Program. Traps are located at the UK Research and Education Center in western Kentucky and the UK Spindletop Farm in Lexington.  Below are trap counts for the current

Posted in Insect Trap Counts

Cucurbit Downy Mildew Has Arrived in Kentucky

Late in the day on July 31, cucurbit downy mildew was found on cucumber in south-central Kentucky. Microscopy was used to confirm presence of the pathogen, by identifying its dark sporulation on the leaf surface (Figure 1) and oval, dark

Posted in Vegetables

Giant Wasps Swarming My Lawn!

The UK Department of Entomology receives numerous calls about large wasps swarming over lawns in late July through August. These are often very large cicada killer wasps. While a nest is made by a single female cicada killer wasp, they

Posted in Human Pests

Cleaning & Sanitizing Commercial Greenhouse Surfaces (PPFS-GH-07)

Greenhouse and nursery sanitation practices help prevent the introduction and spread of plant diseases and pests. Being proactive in maintaining a clean growing environment will often be less expensive and more effective than reacting to a disease or pest issue

Posted in Featured Pubs & Videos