2024 Range & Pasture Western Rangeland Weed & Brush ID Guide

Annual Weeds

RAGWEED: COMMON and GIANT Ambrosia artermisiifolia L. and Ambrosia bidentada Life Cycle: Annual Plant Description: An erect, branching summer annual. 1 to 4 feet tall, has many lobed leaves. Flowers in late summer producing large amounts of wind-dispersed pollen.

Treatment: Apply 16 fluid ounces of HighNoon ®

herbicide. Use lower rate when weeds are small and actively growing. Increase rate as season progresses and plants become more mature.

31

Made with FlippingBook - Share PDF online