Investigate the use of rootworm insecticide on first-year corn.
| Cooperator: | Tom Weiler |
| County of Site: | Morrow |
| Nearest Town: | Chesterville |
| Major Soil Type: | Millgrove |
| Drainage: | Systematic |
| Irrigation: | None |
| Tillage: | Fall chisel, field cultivate twice |
| Previous Crop: | Soybeans |
| Soil Test: | pH 7.0 P 23 ppm K 154 ppm |
| Fertilizer: | 180 # NH3 Nitrogen pre-plant, 46# P2O5, 120 # K2O, 11 gallon 10-34-0 |
| Herbicide: | Dual II - 1 qt, Atrazine 1.8#, Bladex 1.8# |
| Plant Population: | 26,700 |
| Plant Pop. @Harvest: | 25,800 |
| Variety: | Pioneer 3335 |
| Planting Date: | April 30 |
| Harvest Date: | October 30 |
| Variety | Insecticide | Rate | Yield Bu/Ac |
|---|---|---|---|
| Pioneer 3335 | Force | 5 oz/Ac | 153.7 |
| Pioneer 3335 | None | - | 150.7 |
| LSD (.05) = 12.9 | N.S. |
This research project was designed to study the effect of insecticide use on first-year corn. Force insecticide was used at the 5-oz.-per-acre rate. Pioneer 3335 was used as the corn variety. The results are the average of five side-by-side one-fifth acre plots. Each plot was six rows wide. Yield differences were not significantly different. The improvement in yield received would barely cover the cost of insecticide used. Normally in Ohio a planter-box treatment with insecticide is not recommended on first-year corn by Ohio State University.
For additional information, contact:
Steve Ruhl
Ohio State University Extension - Morrow County
871 W. Marion Rd., Suite 102
Mt. Gilead, Ohio 43338
419-947-1070
ruhl.1@osu.edu