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E X T O X N E T

Extension Toxicology Network

Pesticide Information Profiles

A Pesticide Information Project of Cooperative Extension Offices of Cornell University, Oregon State University, the University of Idaho, and the University of California at Davis and the Institute for Environmental Toxicology, Michigan State University. Major support and funding was provided by the USDA/Extension Service/National Agricultural Pesticide Impact Assessment Program.

EXTOXNET primary files maintained and archived at Oregon State University

Revised 9/95.


HALOXYFOP


TRADE OR OTHER NAMES: The common name haloxyfop is also used for haloxyfop-methyl and haloxyfop-ethoxyethyl. Trade names include Verdict, Gallant, Zellek, and Dowco 453 ME (haloxyfop methyl) or Dowco 453 EE (haloxyfop ethoxyethyl)(6).

REGULATORY STATUS: Registration is pending for use of haloxyfop in the United States (41).

INTRODUCTION: Haloxyfop is in the pyridine chemical family (40). It is produced in two forms, haloxyfop-methyl and haloxyfop-ethoxyethyl. Both are used as pre- and postemergence selective herbicides. They control annual and perennial grasses in sugar beet, oilseed, potatoes, leaf vegetables, onions, sunflowers, strawberries, and other crops. Haloxyfop-ethoxyethyl and haloxyfop-methyl are absorbed into the plant and inhibit growth (6). The EPA classifies haloxyfop as toxicity class II-moderately toxic. All products containing haloxyfop bear the Signal Word "Warning." It is available as an emulsifiable concentrate (41).

TOXICOLOGICAL EFFECTS

ECOLOGICAL EFFECTS

ENVIRONMENTAL FATE

PHYSICAL PROPERTIES AND GUIDELINES

Haloxyfop (acid) is a white crystal with an offensive odor. Haloxyfop-ethoxyethyl is a colorless crystal which is hydrolyzed to haloxyfop under acidic and alkaline conditions. The rate of hydrolysis increases with temperature (6). Haloxyfop-methyl is an amber to straw yellow solid with a mild aromatic odor. It is stable to UV light and in high temperatures. There is no decomposition after 88 hours at 200 degrees C.

Physical Properties:

Exposure Guidelines:

All guidelines given are for haloxyfop-methyl.

BASIC MANUFACTURER:

DowElanco
Crops Division
9002 Purdue Road
Indianapolis, IN 46268-1189

REFERENCES

References for the information in this PIP can be found in Reference List Number 7


DISCLAIMER: The information in this profile does not in any way replace or supersede the information on the pesticide product label/ing or other regulatory requirements. Please refer to the pesticide product label/ing.