Fire Blight Alert and Risk Map Overview

Apple and pear trees are at bloom or approaching bloom across Kentucky. Infection by the fire blight bacterium occurs during bloom, thus, protectant antibiotics should be applied when risk is high.  Risk for infection can be assessed using the Fire

Posted in Fruit

Last Year’s Small Fruit Diseases Equal This Year’s Disease Risk

Disease presence last year can indicate a risk for the same disease this year. Many pathogens overwinter on infected plant material or as pathogen survival structures. Poor sanitation practices can lead to an increased risk of these diseases in the

Posted in Fruit

Black Knot of Stone Fruit

Black knot is a common, often serious, disease of plums and cherries in Kentucky. Trees in both commercial and residential plantings are susceptible to the disease. Black knot results in knotty growths that, over time, encircle limbs and result in

Posted in Fruit

Rainy Season Equals Phytophthora Disease in Ornamentals

Spring rains can create growing conditions that are devastating to most landscape plants.  Wet soils are favored by a group of pathogens called water molds, or oomycetes, which cause a range of root and stem diseases. Water molds are found in

Posted in Landscape Trees & Shrubs, Ornamentals

Prevent Cutworm Damage to Cut Losses

Cutworms are cool-weather, early-season pests of many cultivated plants. Often before crops are even planted, the small instar cutworms may be feeding on winter-annual weeds in fields. When winter-annual weeds are burned down, and spring crops are planted, half-grown cutworm

Posted in General Pests

Diplodia Tip Blight of Pine (PPFS-OR-W-21)

Diplodia tip blight is a serious disease of landscape pines in Kentucky, resulting in needle death and dieback. Austrian (Pinus nigra), Scots (P. sylvestris), and Mugo (P. mugo) pines are most commonly affected.  As branch dieback progresses upward in diseased pines, trees

Posted in Featured Pubs & Videos

2021 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

Begin Scouting Fields for Alfalfa Weevil

The UK Ag Weather Center’s degree day model for alfalfa weevil indicates that many counties in Kentucky have recently exceeded the 190 Degree Day (190 DD) used as a starting point to begin scouting for alfalfa weevil. Most other counties

Posted in Forages

Last Year’s Tree Fruit Diseases Equal This Year’s Tree Fruit Disease Risk

Last year’s disease presence can help us evaluate this year’s disease risk. Many pathogens overwinter on infected plant material or as pathogen survival structures. Poor sanitation practices and lack of management can lead to overwintering of many pathogens.  This, thereby,

Posted in Fruit

Fire Blight Alert and Risk Map Overview

Apple and pear trees are at bloom or approaching bloom across Kentucky. Infection by the fire blight bacterium occurs during bloom, thus, protectant antibiotics should be applied when risk is high.  Risk for infection can be assessed using the Fire

Posted in Fruit

Don’t Get Burned by Fire Blight, Disease Management Begins Now

Fire blight is an important disease of apple, crabapple, pear, and flowering pear in Kentucky. Symptoms are often not observed until late spring or early summer; however, initial infections occur at bloom. The pathogen survives winter in dead, dying, and

Posted in Fruit

Leaf Scorch and Winter Drying of Woody Plants

Leaf scorch occurs whenever water needed for growth and health of plant foliage is lost from leaves faster than it can be replaced from soil. Any factor that interferes with uptake or movement of water through plants cause water deficiency

Posted in Landscape Trees & Shrubs

Juniper Twig Blights (PPFS-OR-W-11)

Twig and branch dieback is extremely common in many juniper plantings in Kentucky. While other factors can be responsible for these general symptoms, Phomopsis twig blight or Kabatina twig blight are often the cause. This newly revised publication discusses hosts,

Posted in Featured Pubs & Videos

2021 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

Fire Blight Alert and Risk Map Overview

Apple and pear trees are approaching bloom. Infection by the fire blight bacterium occurs during bloom, thus, protectant antibiotics should be applied when risk is high. Risk for infection can be assessed using the Fire Blight Disease Prediction Model. Growers

Posted in Fruit