Broadleaf Weed Control Using Broadcast Applications Herbicide and Timing Recommendations | BIENNIAL WEEDS Biennial Weed Species • Herbicide • Product Per Acre • Time to Treat
DuraCor OR Chaparral OR GrazonNext HL DuraCor OR GrazonNext HL
12 to 16 fluid oz/A OR 2oz/A OR 24 to 32oz/A 16 to 20 fluid oz/A OR 24 to 32oz/A
Treat in vegetative state prior to bloom, add 0.5 lb of 2,4-D late season through early flower. Apply during the rosette stage early in the season. Fall to early winter applications can be made to rosettes prior to the first hard frost.
Bull Thistle Musk Thistle Plumeless Thistle
Scotch Thistle
Broadleaf Weed Control Using Broadcast Applications Herbicide and Timing Recommendations | PERENNIAL WEEDS Important Notes—Perennial Weeds Match rate and timing to the targeted perennial weed. Spray timing varies considerably for perennial broadleaf weeds. Within a labeled application rate range, increase the rate as plants become more mature, when weed foliage is tall or dense or when growing conditions are less than favorable. Use enough spray volume. Recommended spray volume is 10 to 25 gallons per acre ground broadcast or 2 to 5 gallons per acre by air. Higher spray volumes in the range generally provide better coverage and better control. Use the recommended rate of an agricultural surfactant, plus a drift control agent where needed. Perennial Weed Species • Herbicide • Product Per Acre • Time to Treat Antelopehorn Milkweed Surmount ® 48oz/A Apply to vegetative stage prior to bloom.
Chaparral ™ OR Tordon ® 22K OR Surmount
3.3oz/A OR 16oz/A OR 48oz/A
Broom Snakeweed (Perennial Broomweed)
Spray during and after full bloom in fall, with good moisture.
DuraCor ®
16 to 20 fluid oz/A + 16oz 2,4-D Amine OR 32oz/A OR 24 to 48oz/A
Spray when plants begin to flower in the spring.
OR GrazonNext ® HL OR Surmount DuraCor OR GrazonNext HL OR Surmount
Bullnettle
16 fluid oz/A OR 24 to 32 oz/A OR 24 to 48 oz/A
Spray during or after full bloom in the summer, with good moisture.
Carolina horsenettle
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