Five counties participated in formal county-based Integrated Pest Management (IPM) programs in 1988. These programs included 367 fields with a total of 12,813 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.
The vast majority of the acreage enrolled in county-based IPM programs in 1988 was planted in corn (88.5%). Soybeans accounted for 9.3% of the acreage followed by alfalfa (1.6%). Wheat (0.6%) was a relatively small component 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 or weeds that were "common" in 1988 using this definition .
Alfalfa weevil and Potato leafhopper were widespread in alfalfa. Both species showed significant numbers of fields over the reporting values for these pests.
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 1988 included Alfalfa weevil, Potato leafhopper, Dock , and Crabgrass. Stalk rots were the only diseases of particular concern found in corn in 1988 although a number of insect pests were reported, including European corn borer, Black cutworm, Armyworm, and the three corn rootworm beetle species (Northern, Southern, and Western). Weeds of particular concern in corn included Johnsongrass and Cocklebur in 1988. No soybean diseases were noted. Insect pests included Bean leaf beetle, Grasshopper, Green cloverworm, and Soybean podworm (aka Corn earworm). Weeds present were Johnsongrass, Cocklebur, and Giant ragweed. No diseases, insects, or weeds of concern were reported in wheat; however, these data come from only one field scouted under the county-based IPM program.
University of Kentucky Integrated Pest Management Program
Original document: 5 December 1996
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