Blog Archives

Freeze Effects on Aphids and Their Parasitoids under the Mild Winter Conditions of 2017

Kentucky and the northeastern U.S. experienced a mild winter in 2017. To survive the low temperatures of winter, insects enter into diapause at a specific life stage (adult, larva, pupa or egg). Diapause is a process in which insects slow

Posted in Grains

Earlier Aphid Occurrences on Wheat May Be a Consequence of the 2017’s Warm Winter

In Kentucky, there is a complex of aphid species that feeds on wheat. Bird cherry oat (Figure1a), English grain (Figure1b), greenbug, and corn leaf aphid are the most important species. Their role as vectors of plant viruses, particularly barley yellow

Posted in Grains

UK Wheat Production Field School: A Hands-on Training

The UK Wheat Science Group will offer hands-on training sessions on managing wheat in Kentucky.  The sessions will be held at UK Research and Education Center in Princeton (1205 Hopkinsville St) and are scheduled March 8 (Green-up) and April 26

Posted in Announcements, Grains

Soybean Rust Headed Our Way

Soybean rust was observed last week in Coffee County, Tennessee (south-central TN) last week.  Dr. Heather Kelly with the University of Tennessee posted an on-line article about the find here. Soybean rust has not yet been observed in Kentucky for

Posted in Grains

Corn Ear Rot Concerns

Conditions during July were favorable for infections by a couple of fungi that are known to cause ear rots of corn.  Observations of Diplodia ear rot already have been made in some corn fields in Kentucky this year.  Although conditions

Posted in Grains

Tips for Good Grain Storage Management

Earlier this summer, and as recently as last week, I received inquiries from different counties in Kentucky on the control of insects (i.e., rice weevil, lesser grain borer weevil, and Indian meal moth) in stored grains. Now that corn fields

Posted in Grains

Is the Corn Pith Weevil Making a Comeback?

Colby Guffey, Clinton County Ag & Natural Resources agent, sent digital pictures of larvae he found while investigating some unusual symptoms in silage corn. The larvae, which were tunneling in corn stalks, resembled European corn borers but were legless. In

Posted in Grains