Monthly Archives: April 2018

Fire Blight Alert and Risk Map Overview

Many apple and pear trees are in bloom throughout 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 Blight Disease

Posted in Fruit

Mating Disruption for Codling Moth in Orchards

This spring, the Kentucky Horticultural Society worked with Pacific Biocontrol Corporation to register a mating disruption product for Kentucky. With this arrangement, Pacific Biocontrol submitted the application to the Kentucky Department of Agriculture and the Kentucky Horticultural Society paid the

Posted in Fruit

A Great Spring for Aphids

This long spring is ideal for aphids. Colonies of the small sap-feeders (Figure 1) can be found on many landscape plants now. Impacts of aphids vary widely. Some species manage to remove sap without any obvious effect on plants. However,

Posted in Landscape Trees & Shrubs, Ornamentals

Black Flies

There has been a significant outbreak of black flies in the Arkansas delta this spring (see this article). In Kentucky, these biting gnats were attacking people last week in Jefferson County. Historically, black flies have tormented livestock along streams and

Posted in Livestock Pests

Fire Blight (PPFS-FR-T-12)

Fire blight is a highly destructive disease of apple and pear that can occur in commercial orchards and residential plantings. Many landscape trees and shrubs in the rose family are also susceptible to this disease. Under favorable environmental conditions, fire

Posted in Featured Pubs & Videos

2018 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

Dogwood Anthracnose Spotted

Anthracnose of dogwood is a common problem in Kentucky. Symptoms on landscape and forest dogwoods often first appear during wet periods in late spring. If left unmanaged, the pathogen spreads, eventually resulting in plant death.  Selection of resistant varieties and

Posted in Forest Trees, Landscape Trees & Shrubs