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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Volume 43, Number 2 (1992) → Comparing a Spray Boom to a Roller-Wiper System for a Single-Passenger Four-Wheeler

Comparing a Spray Boom to a Roller-Wiper System for a Single-Passenger Four-Wheeler

The ability of spray booms and carpet-covered roller-wipers mounted on four-wheelers to apply herbicides on pine planting 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. Apparently, unless modified, the roller assembly is not a practical alternative to the spray boom unless drift must be kept minimal. Tree Planters' Notes 43(2):36-38; 1992.


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Author(s): James D. Haywood, Richard Hallman

Publication: Tree Planters' Notes - Volume 43, Number 2 (1992)

Volume: 43

Number: 2