Monthly Archives: April 2015

Welcome to Dr. Emily Pfeufer, UK’s Newest Extension Plant Pathologist

We wish to extend a hand of welcome to Dr. Emily Pfeufer, Assistant Extension Professor of Plant Pathology at the University of Kentucky.  Emily completed her Ph.D. in Plant Pathology at The Pennsylvania State University, and she joined the UK

Posted in Announcements

Eastern Tent Caterpillars Leaving Trees

Dispersing eastern tent caterpillars (ETC) can pose several problems as they leave their “home” trees (commonly, wild cherry) over the next 10 days, or so. The greatest potential harm is associated with pregnant mares on pasture. Ingestion of these hairy

Posted in Landscape Trees & Shrubs

Woolly Aphids

Elm, silver maple, apple hawthorn, and serviceberry often have colonies of woolly aphids living on the undersides of their leaves (Figure 1) in spring. Initially, they are clearly aphids but they take on a fluffy appearance later in their development

Posted in Landscape Trees & Shrubs

Spring Fertilization Can Favor Lawn Diseases

In spring, an emerald-green expanse of cool-season turfgrass is a welcome reminder that winter is behind us.  For many, that lush, green growth has an aesthetic appeal.  For these reasons, it is tempting to promote such growth in lawns with

Posted in Lawn & Turf

The Label is the Law: Pesticide Label Reminders

For my first KPN post, here is a brief refresher on reading agricultural product labels as the season gets into full swing. Before deciding to use a pesticide, the applicator should check three specific points from the label. The pesticide

Posted in Pesticide Topics, Tobacco

Ways to Protect Pollinators from Pesticides

1.  Avoid applying pesticides to blooming plants, or when conditions favor drift into areas with plants in bloom. 2.  If you must spray plants in bloom, select a pesticide that is less toxic to bees (e.g. Bt, insecticidal soap, summer

Posted in Pesticide Topics

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights from the UK Plant Disease Diagnostic Laboratories represent recent sample submissions from field crops, fruit, vegetables, and ornamentals. Recent agronomic samples have included target spot, bacterial blackleg, and heat injury on tobacco transplants. On fruit

Posted in Plant Disease Diagnostic Lab

2015 Insect Trap Counts

Weekly 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

Posted in Insect Trap Counts

Armyworm and Black Cutworm Flights Continue

Capture of armyworm (AW) and black cutworm (BCW) moths continue at a considerable, if slightly lower, number compared to last week. The AW trap captured 449 moths while the BCW trap captured 22 moths. This weekly catch includes at least

Posted in Grains

2015 Fungicide Efficacy for Control of Wheat Diseases

The North Central Regional Committee on Management of Small Grain Diseases (NCERA-184) has developed the following information on fungicide efficacy for control of certain foliar diseases of wheat for use by the grain production industry in the U.S. Efficacy ratings

Posted in Grains

Beetles and Bugs on Vegetables

Hopefully, the wet weather we have been experiencing will abate soon and allow vegetable growers to work their soil and move transplants to fields. Early-season insect problems on vegetables are very different than those later in the summer.  Early season

Posted in Vegetables

Winter Injury Visible on Landscape Plants

With the arrival of spring’s warmer weather, many landscape plants in Kentucky are showing the effects of a winter that broke records.  The winter of 2014-15 approached all-time historical lows in many parts of the Commonwealth.  Now landscapers and homeowners

Posted in Landscape Trees & Shrubs

May Beetles Are Emerging—Some Species Feed, Others Don’t

May beetles are a group of brown to black beetles that can emerge suddenly from lawns and grassy fields in early spring, especially following rain. Depending on the species, larvae (white grubs) will have fed on grass roots for several

Posted in Landscape Trees & Shrubs

BROOD XXIII of the Periodical Cicada—Silent So Far

As of April 19, there have been no reports of emergence of Brood XXIII, the lower Mississippi Valley brood. You can check for sightings and updates, or report activity at The Periodical Cicada Mapping Project Web site. Previous Brood XXIII

Posted in Forest Trees, Landscape Trees & Shrubs

Floodwater Mosquitoes

A wet spring has left water standing in low areas across the state. This sets the stage for problems with floodwater mosquitoes over the next few weeks. That potential is greatest in the dark blue and dark green areas on

Posted in Human Pests