Monthly Archives: June 2019

Vegetable Diseases to Scout for: Early Blight and Septoria Leaf Spot

Kentucky vegetable growers, as well as gardeners, will be seeing early blight and Septoria leaf spot of tomato in their plantings at this time. As the most common diseases of tomato in Kentucky, homeowners or growers not on a preventative

Posted in Vegetables

Armillaria Root Rot – A Threat to Stressed Landscape Trees

Tree stress can come from numerous factors, including weather, mechanical damage, insects, or poor growing conditions. These stresses make plants more susceptible to the plant disease Armillaria root rot. This fungal disease is also known as shoestring root rot, mushroom

Posted in Landscape Trees & Shrubs

Springtails are Common

Last week, there were a few reports of springtails, otherwise known as Collembola, in gardens and a home. Springtails are minute, wingless insects that can jump when disturbed. They are common in low numbers on soil and in leaf litter,

Posted in Household Pests

Oregon Department of Ag Stops Sale of Some Pesticides

This past week, the Oregon Department of Agriculture has expanded a Stop Sale, Use and Removal Order (SSURO) to include six neem oil products from various manufacturers/registrants.  This follows an SSRUO for a single insecticide product last winter. The problem

Posted in Pesticide Topics

Powdery Mildew (PPFS-GEN-02)

Powdery mildew can affect numerous commercial and residential plants, including fruits, vegetables, ornamentals, and agronomic crops. Powdery mildew may adversely affect flowering, fruit development, plant vigor, and yields, although this disease rarely kills plants outright. Plants that become stressed by

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 June 18 to 25, 2019. Diagnostic samples of agronomic crops have included Lepto leaf spot on alfalfa; Septoria leaf

Posted in Plant Disease Diagnostic Lab

2019 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

UK Weed Science 2019 Palmer Amaranth Field Day

The University of Kentucky Weed Science program will be hosting a field day in Fulton County, Kentucky with a focus on the management of Palmer amaranth.  The field day will be held on July 16, 2019 from 9:30 AM to

Posted in Announcements

Field Tobacco Abnormalities

Over the past several days, Extension specialists have been contacted by tobacco growers from several regions across Kentucky about spotting and yellowing symptoms of tobacco leaves (Figures 1, 2, 3). These contacts have been made in regard to field plantings

Posted in Tobacco

Spotting the Right Spot:  Frogeye Leaf Spot vs. Phyllosticta Leaf Spot of Soybean

Phyllosticta leaf spot of soybean has been observed in a few fields in western Kentucky recently.  Although the economic risk of this disease is very low, its symptoms resemble those caused by frogeye leaf spot.  On susceptible soybean varieties, frogeye

Posted in Grains

Managing European Corn Borer on Non-GMO Corn

Many producers are growing non-GMO corn for niche markets, including distillery and food-grade uses.  Non-GMO corn is very susceptible to damage by European corn borer (ECB) and needs to be scouted periodically during ECB first and second generations. Generally, corn

Posted in Grains

Sanitation Recommendations for Small-Scale Field Hemp Plantings

Hemp is often considered a disease-free plant. However, research is being done to determine whether certain pathogens can increase to problematic levels in the field. Should disease become a significant problem in field-planted hemp, the result can be premature leaf

Posted in Hemp

After Hail: Steps to Help Mitigate Disease Problems in Vegetable Plantings

Hail is typically accompanied by driving rains and wind and can physically damage even the strongest plants. Depending on the extent, plants can usually recover from hail damage. However, these injuries may serve as sites of infection for various fungal

Posted in Vegetables

Apple Scout Website

The publication An IPM Scouting Guide for Common Problems of Apple in Kentucky was first introduced in 2014 as an online/paper version. In order to improve access to this important scouting guide, a mobile website was developed. The Apple Scout

Posted in Fruit

Japanese Beetles Now Active

Last week, Dr. Dan Potter reported seeing adult Japanese beetles. This is the first report that I have received and signifies the start of the Japanese beetle season. High populations of Japanese beetle were observed in many locations in Kentucky

Posted in Fruit, Landscape Trees & Shrubs