sprayed half my pasture last week with Duracor (first time I've used this) and it appears to be working great as the weeds are starting to wilt. Wanted to finish other half of pasture this week but I'm concerned about the predicted extreme temps later this week. Could it harm the grass if I spray this week?

Probably fine - weather never cooperates. I would spray earlier in the day.

Too hot to do anything out in the pasture this week. This will be a planning from the porch shade week.

If you have soil moisture and actively growing weeds, I would fit it into your plans to spray.
I have gotten so sick of any hormone herbicide volatilizing and affecting my tomatoes that I used Duracor this year, probably a month ago. It wiped small goatweed and no more is emerging after all the rain we have gotten, unlike continuous emergence in non-sprayed areas. I am a fan of Duracor now.

Over the last couple days I've seen a few threads about the temps this week. Wasn't really sure what all the fuss was about, yeah its getting hotter this week, but low 90's isn't that bad. Saw the state wide forecast this morning with tripple digits in most of central Texas. Just in my own little world I guess. I live in Beaumont and it's not getting nearly as hot as the rest of the state this week.

Beaumont doesn't need 107. 90 with 185% humidity is kinda uncomfortable.

thanks to all reponses

Also regarding Duracor, we killed the snot out of 2' tall pokeweed with spot spraying. Sometimes roundup won't even completely kill that stuff.

For you guys who have used Duracor in the past, have you noticed any harm to the grass? Specifically on bermudas like Tifton? I've used Surmount a couple times for a combination of vines and croton in parts of the pasture, but it sets the grass back a bit and I don't like it for broadcast applications as a result.

I'd like to hit a second flush of wooly croton and some other weeds in part of pasture but I have Extendflex cotton on one side - so no 2, 4D product will work and my neighbor downwind replanted to sesame - so that takes out pretty much ANY hormonal for while anyway.

I used it 2 falls ago on a coastal/common mix for silverleaf nightshade and it put the grass into a shock that it took until the next spring to rebound. I talked to the rep and he said it was the first he had heard of it affecting bermuda. I went at the medium rate for that application.

Edit to add I used an 80/20 with it then. They recommend an MSO for max effect.

Centerpole90 said:

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For you guys who have used Duracor in the past, have you noticed any harm to the grass? Specifically on bermudas like Tifton? I've used Surmount a couple times for a combination of vines and croton in parts of the pasture, but it sets the grass back a bit and I don't like it for broadcast applications as a result.

I'd like to hit a second flush of wooly croton and some other weeds in part of pasture but I have Extendflex cotton on one side - so no 2, 4D product will work and my neighbor downwind replanted to sesame - so that takes out pretty much ANY hormonal for while anyway.

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Be careful. Any Duracor drift is hard on cotton/soybeans. Same AI as Loyant which a lot of flying services won't apply.

Freelex is same choline as enlist for pasture
GrazonPD3 is enlist plus picloram

Duracor or chaparral is your answer here due to proximity of sesame

Thanks for the replies guys. I will probably just tough it out until these crops are in later this summer. The cotton is mine but the sesame is a neighbor's and we've talked before about his Enlist drifting onto extendimax cotton in prior years - I don't want to invite a reciprocal conversation. Hence, my apprehension to use a hormonal.

Quote:

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I used it 2 falls ago on a coastal/common mix for silverleaf nightshade and it put the grass into a shock that it took until the next spring to rebound. I talked to the rep and he said it was the first he had heard of it affecting bermuda. I went at the medium rate for that application.

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That his exactly what I experienced with Surmount when broadcast. It controlled the hell out of the weeds, but it set the grass back until the next year.

My biggest problem right now isn't weeds anyway... it's damn mealybugs. I had a bad infestation in late '23 after a big rain. No problem last year, but back in March we had a big rain and I started noticing patches of grass really stressing - totally out of character. I went and looked - and they were back. Not the whole pasture, but a part of it. I treated them and thought I got good control... but got another rain last week and again I see some areas showing symptoms of rust - but its not, it's mealybugs.

ETA pic

Damn……..Ask the Agronomist (TM) is getting old. I had to look up the chemistry here. DuraCor looks like a real oddball with an amine salt and ester premixed, but Im all about a synergistic effect of a combo when it comes to weed spraying. The florpyrauxifen-benzyl is the ester, there isn't much, and may explain some of the burn on some grass species.

With all the rain, the weed kill should be just fine, but the heat might ramp up grass damage.