Monthly Archives: April 2020

A Grower’s Guide to Kentucky Hemp Production – Webinar

Unfortunately, last month’s hemp production workshops were cancelled as a result of COVID-19.  In efforts to bring the program to hemp growers across the state, UK hemp specialists will offer a revised format by Zoom on Tuesday May 5 from

Posted in Announcements

New Resource: High Tunnel and Greenhouse Vegetable Crops Scouting Guide Website

The publication An IPM Scouting Guide for Common Problems of High Tunnel and Greenhouse Vegetable Crops in Kentucky was revised in 2018 as an online PDF/paper version. In order to improve access to this important scouting guide, the Veggie Scout

Posted in Vegetables

Fire Blight Alert and Risk Map Overview

Apple bloom is nearing completion across Kentucky, while bloom in pear trees has been complete for a couple weeks. Infection by the fire blight bacterium occurs during bloom, thus, protectant antibiotics should be applied when risk is high. Risk for

Posted in Fruit

Brown Rot of Peach Fruit Trees

Abundant rainfall and warm temperatures can lead to an increase in the presence of brown rot on stone fruits (peach, cherry, plum, nectarine), which results in rotten, inedible fruit. Early season management can reduce initial sources of the fungus as

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

Maintaining the Efficacy of Foliar Fungicides for Tobacco Disease Management (PPFS-AG-T-05)

Fungicides are organized into groups based on their mode of action (the mechanism a pesticide or chemical affects its target pest). Managing fungicide resistance often necessitates alternating the use of chemicals with different modes of action (FRAC groups).  Alternating FRAC

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

Considerations for Fungicide Management of Fusarium Head Blight (Scab) of Wheat

When wheat heads begin to flower, it is a critical time, as wheat becomes susceptible to infection by Fusarium graminearum, the causal agent of Fusarium head blight (FHB; also known as scab) (Figure 1). This disease can cause reduced grain yield, test

Posted in Grains

Section 18 for Sivanto Prime on Sweet Sorghum Approved for 2020

Once again, the Environmental Protection Agency (EPA) approved a Section 18 Emergency Exemption for Sivanto Prime use against sugarcane aphid on sweet sorghum in 2020. This is the fifth year in a row that the Kentucky Department of Agriculture (KDA)

Posted in Grains, Pesticide Topics

Blackleg of Potato

Potatoes are often one of the first crops planted into the vegetable garden. However, growers and gardeners alike should be on the lookout for blackleg disease. This disease can occur in both commercial and homegrown potatoes. “Seed” potatoes may be

Posted in Vegetables

Watch for Early Season Insect Pests on Cole Crops

Insects are now active on some vegetable crops, so producers should be monitoring their fields weekly during this early period. Plants are growing slowly, particularly transplants, until they become established. It is recommended that crops be scouted every week, and

Posted in Vegetables

Fire Blight Alert and Risk Map Overview

Apple and pear trees are blooming 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 Blight Disease Prediction Model.

Posted in Fruit

Cedar-Apple Rust

Cedar-apple rust is the most common and economically important rust disease of apple in Kentucky.  The pathogen overwinters as galls on cedar and juniper. Removal of these pathogen sources on cedar can later reduce disease incidence on apple. Once apple

Posted in Fruit

Cleaning and Sanitizing Commercial Greenhouse Surfaces

Sanitizing surfaces is a critical step for greenhouse and nursery sanitation.  This is particularly important for sites where disease was a problem in previous crops.  Pathogens that cause plant disease can survive in debris, in soil, or on surfaces.  Cleaning

Posted in Greenhouses/High Tunnels

Time for Termites!

Termite season has begun in Kentucky!  To assist homeowners in addressing this growing problem, this article provides basic information on termite biology and control. That said, this article is intended to be a quick reference guide to answer the most

Posted in Household Pests