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William from Florala Al writes

Will Remedy Ultra Herbicide kill ironweeds?


Remedy Ultra Herbicide is not specifically labeled for ironweed. Amine 400 2,4 - D Weed Killer, GrazonNext and Crossbow are labeled for ironweed. Remember to always refer to the specific product label for approved application sites and recommended mix rates.  Control of this weed can take up to 12 to 18 months.It is recommended to begin control for ironweed in early to mid-July by mowing emerged tall ironweed stem then apply herbicides in August or by early September as a broadcast treatment. Although mid-summer (June and July) treatments can provide good control, better herbicide movement to the root system occurs with perennial weeds such as tall ironweed with late summer applications. 

Answer last updated on: 06/28/2021

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