Kentucky Integrated Pest Management
Annual Summary 1989

ABSTRACT

Five counties participated in formal county-based Integrated Pest Management (IPM) programs in 1989. These programs included 322 fields with a total of 11,494 acres. There undoubtedly were also farmers who scouted their own fields based on IPM training they received in the past, but no data exists to document the number of acres involved in IPM in this fashion.

Approximately 70% of the acreage enrolled in county-based IPM programs was planted in corn. Wheat accounted for 17% of the acreage followed by soybeans with 10%. Alfalfa (2%) and barley (0.4%) were relatively small components of the total picture.

The most common disease, insect, and weed pests were arbitrarily identified as those affecting 50% or more of the fields planted in a given crop. There were no diseases that were "common" in 1989 using this definition .

Alfalfa weevil and Potato leafhopper were widespread in alfalfa. Only Alfalfa weevil showed significant numbers of fields over the reporting values for these pests.

A number of weeds were reported as common in the crops surveyed; many weed pests were over their reporting values in the majority of fields affected. These included Wild garlic, Henbit, and Chickweed in barley and wheat; Trumpetcreeper in corn; and Cocklebur and Morningglory in soybeans.

Extension specialists were asked to provide lists of pests of particular concern for each crop in the IPM program. Pests in this category found in alfalfa in 1989 included Sclerotinia crown and stem rot, Leaf spots, Alfalfa weevil, Potato leafhopper, and Dock. There were no diseases or insects of concern reported for the two barley fields surveyed in 1989. Weeds of concern included Wild garlic, Chickweed, and Henbit. No diseases of particular concern were found in corn in 1989 although a number of insect pests were reported, including European corn borer, Black cutworm, Fall Armyworm, Armyworm, and the three corn rootworm beetle species (Northern, Southern, and Western). Weeds of particular concern in corn included Johnsongrass, Shattercane, Honeyvine milkweed, Giant ragweed, and Cocklebur in 1989. Soybean cyst nematode was the only soybean disease noted; insect pests included Bean leaf beetle and Soybean podworm (aka Corn earworm). Weeds present were Johnsongrass, Cocklebur, and Giant ragweed. Powdery mildew was the only disease of concern reported in wheat. Insects of particular concern in wheat that were reported included Aphids, Armyworm, and Cereal leaf beetle. Weed species of concern in wheat reported for 1989 included: Wild garlic, Chickweed, and Henbit.

	Original document: 5 December 1996 Last updated: 5 December 1996