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Experimental soil insecticides to control larvae of the corn root-worm were evaluated in 6 field locations in Illinois during 1978. Corn plots were planted on April 15 at Parkland College, April 26, 27 at Western Illinois University, May 2 at Cerro Gordo, May 19 at Raritan, and May 20 at Cisco. All experiments were in a randomized block design with 4 replicates. Indivisual plots were one row approximately 90 ft long on 30 in. centers. Applications were applied over the row in a 7-in. incorporated band. Treatments were evaluated by stand counts, root damage ratings (Iowa 1-6 system), and percent lodging. The differences in the data were calculated by analysis of variance and the means were compared by Duncan’s Multiple Range Test. |
