Blog Archives

Foliar Fungicide Considerations for Soybean

As soybean fields in Kentucky approach the R3 (beginning pod) developmental stage, it generally is a time to consider an application of a foliar fungicide to protect against foliar diseases.  In areas of the state that have received frequent rainfall,

Posted in Grains

Corn Disease Update: Time for Foliar Fungicide Application Decisions in Corn

Corn is moving through growth stages quickly, and the warm, humid weather in many parts of Kentucky has been conducive for foliar disease development. Fungicides are commonly promoted to reduce the impact of foliar disease in corn, but with tight

Posted in Grains

Assessing and Utilizing UK Extension Resources for Commercial Fruit Production

The University of Kentucky Extension team has put together numerous resources for commercial fruit growers regarding production and pest management. However, many growers are not aware of the wide range of publications, newsletters, websites, and other resources that are available

Posted in Fruit

Laurel Wilt Disease: A Threat to Kentucky Sassafras Trees

Laurel wilt is a new disease that was recently detected in southwestern Kentucky. This disease, which is transmitted by the redbay ambrosia beetle, has the potential to rapidly kill sassafras trees. Currently no management options are available for this disease.

Posted in Forest Trees, Landscape Trees & Shrubs

My Trees Have Lice!

Barklice that is. While that sounds alarming, and brings to mind blood-sucking lice, barklice are not lice and are very different from the parasitic lice that can infest people and livestock. Barklice cause concern when they are seen in large

Posted in Landscape Trees & Shrubs

Holcus Leaf Spot (PPFS-AG-C-06)

Holcus leaf spot, a bacterial disease, can be seen sporadically in Kentucky cornfields.  It can be challenging to diagnose because damage from certain contact herbicides can mimic holcus spot.  This publication describes disease symptoms, conditions that favor disease, and how

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

Update on Foliar Diseases of Soybean

As the rains fall, environmental conditions become favorable for leaf diseases of soybean.  Currently, there are a couple of foliar diseases of soybean that can be observed in fields in Kentucky, which are Septoria brown spot and Phyllosticta leaf spot.

Posted in Grains

Watch for Blister Beetles in Hay

Several species of blister beetles are common in Kentucky; they can be a problem to livestock when they infest alfalfa hay. As few as 5 to 10 of these beetles can be fatal to horses when ingested because of the

Posted in Forages

Hanging by a Thread

Dead, curled leaves dangling by fungal “threads” are typical of a disease called thread blight.  This disease is more common in eastern Kentucky, where it has been observed on apple, cherry, and viburnum.  Other potential hosts include cotoneaster, dogwood, gooseberry,

Posted in Fruit, Landscape Trees & Shrubs

How NOT to Submit Plant Samples for Diagnosis

Spring brings with it fresh, new plant growth and gardeners filled with enthusiasm. However, when landscape or garden plants begin to show symptoms of a problem, or when commercial crops start to decline, the two questions from home gardeners’ and

Posted in Plant Disease Diagnostic Lab

Cleaning and Disinfecting Home Garden Tools and Equipment (PPFS-GEN-17)

Dirty tools, containers, and work surfaces come as no surprise to home gardeners. Rinsing with water to remove obvious soil or plant residues is a common practice. However, this type of basic cleaning can fail to remove microscopic plant pathogens

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 1 to June 30, 2020. Diagnostic samples of agronomic crops have included Rhizoctonia damping off, Lepto leaf spot,

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

Vegetable Diseases to Scout for: Anthracnose of Cucurbits

With cucurbit crop canopies beginning to close within planting beds, cucumber, cantaloupe, and watermelon growers in Kentucky should be scouting for anthracnose in their plantings. Prevention, early identification, and management will help reduce plant losses. Cause & Disease Development Anthracnose

Posted in Vegetables