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Guidelines for Selecting Herbicide Additives for Reed Canarygrass Control

By Craig A. Annen

Abstract

Herbicide performance depends on how an herbicide is used. Field conditions and selection of herbicide additives can affect the outcome of reed canarygrass (Phalaris arundinacea L.) control strategies. Grass-specific herbicides (e.g., Vantage ® , Poast Plus ® , Select 2EC ® , Assure ® and Fusilade DX ® ) require additives to work effectively. There are several types of additives, including crop oils, surfactants, acidifiers, and conditioning agents, to name a few. Although they are not phytotoxic themselves, herbicide additives enhance herbicide phytotoxicity by increasing solubility of the herbicide in water, promoting herbicide uptake and translocation, or altering tank mixture pH. When more herbicide is taken up and translocated, more control is achieved. Choosing an additive (or combination of additives) can be difficult. The adjuvant industry is not regulated and there are no set standards for composition, quality, or even terminology among additives. Furthermore, the availability, price, and active ingredients of additives can change year-to-year. The purpose of this article is to briefly define the conditions under which grass-specific herbicides should be applied, and which additives to use for optimum reed canarygrass control

Year: 2010
OAI identifier: oai:CiteSeerX.psu:10.1.1.173.4612
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