Range & Pasture Southwest Rancher Guide

Broadleaf Weed Control Using Broadcast Applications Herbicide and Timing Recommendations | ANNUAL WEEDS Annual Weed Species • Herbicide • Product Per Acre • Time to Treat

Use lower rate when weeds are small and actively growing. Use higher rate on 10-to-12 inch tall, mature weeds with adequate leaf surface.

16 to 20 fluid oz/A OR 1.5 to 2oz/A OR 24 to 32oz/A

DuraCor ® OR Chaparral OR GrazonNext HL

Croton (woolly)

Winter Annual - Use lower rate in early season up to 3 buttons. Efficacy may decrease after this stage. Increase rate as season progresses until senescence 16 fluid ounces of DuraCor ® herbicide per acre on plants less than 4 inches tall. Taller, more mature plants require 20 fluid ounces of DuraCor herbicide per acre with 1% MSO per volume of water used . Once the plant branches, do not treat. Apply 16 to 20 fluid ounces of DuraCor herbicide per acre when all weeds emerge. Use DuraCor at 20 fluid ounces for mature plants.

DuraCor OR Chaparral ™ OR GrazonNext ® HL

16 to 20 fluid oz/A OR 1.5 to 2oz/A OR 24 to 32oz/A

Horsemint, beebalm

DuraCor OR Chaparral

16 to 20 fluid oz/A OR 2.0 to 2.5oz/A

Marshelder, sumpweed

DuraCor OR GrazonNext HL

16 to 20 fluid oz/A OR 24 to 32oz/A

Pigweed, spiny amaranth

Apply 16 to 20 fluid ounces of DuraCor ® per acre + 0.5 lb ae per acre, 2,4-D amine or 32 ounces of GrazonNext ® HL per acre.

DuraCor OR GrazonNext HL

16 to 20 fluid oz/A OR 32oz per acre

Lanceleaf ragweed

DuraCor ® OR Chaparral OR GrazonNext HL

12 to 16 fluid oz/A OR 2 to 2.5oz/A OR 32oz/A

Ragweed (annual or common)

Use lower rates early in season, weeds 4 to 6 inches, good moisture.

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