Fire Blight Alert and Risk Map Overview

Apple trees are approaching bloom and many pear are in full bloom, especially in southwestern 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

Posted in Fruit

Rainy Season Equals Phytophthora Disease

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

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

Alfalfa Weevils Are Hardy

The recent snow and cold should have little effect on developing alfalfa weevil populations. Temperatures must drop below minus 7o to minus 10o F to be lethal to eggs deposited in plant stems. Small larvae are killed by temperatures of

Posted in Forages

Mite Management in High Tunnels

As the weather begins to warm, mite activity is likely to increase in high tunnels and greenhouses. Due to their small size and cryptic habits, it is usually easier to initially scout for signs of their activity, rather than trying

Posted in Greenhouses/High Tunnels, Vegetables

Emerald Ash Borers 2018

Since the first discoveries of emerald ash borer in Boone, Jessamine, and Shelby counties in 2009, this invasive insect has spread through normal dispersal flights and the inadvertent movement of infested wood. Tunneling beneath the bark by the larvae (Figure

Posted in Forest Trees, Landscape Trees & Shrubs

Horn Fly: The $1 Billon Insect

Horn flies are important pests of pastured cattle (Figure 1). They use their piercing-sucking mouthparts to take about 30 blood meals every day. The almost incessant feeding of large populations can severely impact growing calves and lactating cows. Horn flies

Posted in Livestock Pests