2024 Range & Pasture - Weed ID Guide

Annual Weeds

HORSEWEED or MARESTAIL Conyza canadensis Life Cycle: Annual Plant Description:

A tall growing winter or summer annual. Stem usually has short bristly white hairs. Its many leaves are alternate and lance-shaped. Blooms June to August with numerous tiny, inconspicuous flowers. or 24 fluid ounces of NovaGraz ™ herbicide plus 1% MSO v/v per acre, or 1.5 to 2.1 pints of GrazonNext ® HL herbicide per acre, or 20 to 32 fluid ounces of GrazonPD3 ™ herbicide per acre.

Treatment: Apply 16 to 20 fluid ounces of DuraCor ® herbicide per acre,

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