Abstract
Abstract Granular and liquid insecticides were applied at planting time at a site near Wayne, NE on 26 May. The soil type was silty clay loam and the previous crop was alfalfa. The field was prepared by killing the alfalfa with 2,4-D and dicamba on 4 May. The plot was planted no till into slots prepared by the landowner’s planter. Residue cover was heavy. The experimental design was a randomized complete block with 4 replicates. Each treatment consisted of 2 rows 16 m long, with 2 untreated rows between each treatment; rows were 75 cm apart. Granular materials were applied in an 18 cm band by a John Deere 2 row planter equipped with a cone-belt insecticide distributor and incorporated by tines. Ambush 2 E was broadcast immediately after planting, with a 4 nozzle CO2 back pack sprayer equipped with T-jet 8002 nozzles applying approximately 177 liters/ha total volume at 25 psi. Spray width was 1.66 m. Ambush 2E was also banded with the same spray equipment but the 4 nozzle boom was replaced with a single nozzle. Band width was 37.7 cm. Topsoil moisture was adequate at time of planting and no rain fell during the evaluation period. Plots were evaluated by counting plants remaining on either side of a randomly selected 10 m length marked between the 2 treated rows. The results are given as number of plants per 20 m of row. Final plant stand count was taken on 25 Jun.
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