Comparing a spray boom to a roller-wiper system for a single-passenger four-wheeler

Abstract

The ability of spray booms and carpet-covered roller-wipers mounted on four-wheelers to apply herbicides on pine plantings sites was tested with the following treatments: spray boom application of 0.31 kg (0.69 lb) acid equivalent glyphosate with 0.08 kg (0.18 lb) active ingredient sulfometuron in 215 liters of water/ha (23 gallons/acre) and roller-wiping the vegetation with a solution of 1% glyphosate and 0.1% sulfometuron in water. Both application methods controlled herbaceous plants, but the spray boom was more effective than the roller-wiper: weed control averaged 94% on sprayed plots and 63% on wiped plots compared to untreated controls. Appartently, unless modified, the roller assembly is not a practical alternative to the spray boom unless drift must be kept minimal.

Citation

Haywood, James D.; Hallman, Richard. 1992. Comparing a spray boom to a roller-wiper system for a single-passenger four-wheeler. Tree Planters'' Notes 43(2):36-38; 1992.