Abstract
Abstract Granular insecticides were applied to suppress larval rootworm populations in two fields in west central Nebr. Insecticides were applied to Field I at planting on 18 May with application boxes on a John Deere Max-emerge planter. Two replications of each treatment were arranged in a randomized complete block design. T-Band applications were made in a 7.0 inch band in front of the press wheel. Banded applications were made by applying a 7.0 inch band behind the press wheel. In-furrow applications were made by applying insecticide directly into the seed furrow. Corn variety for Field I was undetermined at time of writing. Insecticides were applied to Field II at the time of irrigation furrow construction, 27 Jun, to the base of the plants, with International Harvester boxes on a Hawkins/Bridger ditching unit. Treatments in Field II were replicated 3 times and arranged in a randomized complete block design. All treatments were evaluated 13 Jul by rating washed roots, using the 1-6 Iowa State root rating scale, of 4 plants from each treatment.
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