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Herbicide Summary - Velpar® DF

Used to control most annual, biennial, and perennial weeds and woody vegetation for conifer planting site preparation and release.
Updated:
January 3, 2023

Common Name: Hexazinone-75%

Formulation: Water-dispersible, dry flowable granule

Signal Word: Danger

Toxicity: Slightly toxic; oral LD (50): 1,310 mg/kg

Use Classification: General use

Minimum Required Personal Protective Equipment: Long-sleeved shirt, long pants, shoes, socks, and protective eyewear

Carriers: Water

Activity: Absorbed through foliage and root uptake

Mode of Action: Has both pre- and postemergence activity; sufficient soil moisture and rainfall are required for activation

Selectivity: Most conifer species show some resistance

Precautions: Causes irreversible eye damage; not recommended for use on highly permeable soils or on areas with shallow water tables; if applied within root zone, desirable trees and shrubs may be affected

Application Methods: Foliar spray, basal soil, preemergence soil applications

Manufacturer: Bayer

David R. Jackson
Former Extension Educator, Renewable Natural Resources
Pennsylvania State University