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ARS Home » Research » Publications at this Location » Publication #86967
Title: EFFECT OF DRIFT CONTROL ADJUVANTS AND A SURFACTANT ON A HERBICIDE APPLIED AT CONVENTIONAL AND ULTRALOW VOLUMES

Author
item WILLS, GENE - DELTA RES. & EXT. CENTER
item Hanks, James
item JONES, ELIZABETH - DELTA RES. & EXT. CENTER
item MACK, ROBERT - HELENA CHEMICAL COMPANY

Submitted to: Brighton Conference Symposium Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 2/1/1998
Publication Date: N/A
Citation: N/A

Interpretive Summary: A field study was conducted with a herbicide to determine the effect of a wetting agent on weed control and the effect of three experimental chemicals on the wind drift of the chemical spray. Applications were made at the usual spray volume of 10 gallons per acre and at an experimental ultralow volume (ULV) of one-half gallon per acre. Weed control with the herbicide was increased by adding the wetting agent. Each of the drift control chemicals reduced the wind drift of the herbicide without changing the effect of the herbicide. Weed control with ULV applications was normally more effective than conventional applications at 10 gallons per acre.

Technical Abstract: A field experiment evaluated the effect of a surfactant and three drift control adjuvants on the efficacy and drift of a herbicide applied at a conventional and an ultralow spray volume. Weed control was enhanced by the addition of the surfactant. Each drift control adjuvant reduced the amount of herbicide drift with no adverse effect on efficacy. Applications sat the ultralow spray volume were often as effective as at the conventiona spray volume.