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What chem for weeds when temp 90+?

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DLS1

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Discussion starter · #1 ·
Need to spot spray a few yards in July but it is in the 90's before I get out to spray. Is their a weed killer you use when temps in the the 90's or you always spray in the morning when it is cooler?
 
#2 ·
The only way to do it is shop hard for the weeds and spray JUST the weeds. making slashes on the grass will certainly show up in 90 degree temps. It is just too much stress.
 
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#4 ·
good information from upidstay & ground control. We pull the plug on spraying and app just dry chemical at approximately 85 degrees, depending on the dew point. In most cases the weeds can go until the next round.
 
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Discussion starter · #5 ·
lawn king said:
good information from upidstay & ground control. We pull the plug on spraying and app just dry chemical at approximately 85 degrees, depending on the dew point. In most cases the weeds can go until the next round.
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Some of the customers I have want the weeds gone now and not in the fall. I have customers who were ex Chemlawn, Weedman, etc. that were paying around $5.00 1/k and I am charging more. They are expecting better service and that includes getting rid of weeds in the summer. I will just keep spraying in the mornings before it hits 85 degrees.
 
#6 ·
What weeds are you talking about? Broadleaf? Is is all cool season grass in Kansas City? I have heard people talk about how fast Speezone is, but any 2-4,d product is showing visible results in 1 to 2 hours on many weeds when the temp is over 80 and the soil moisture is good. You only need the lower recommended rates.
 
#9 ·
I'm in the same boat as you bro.. my distributer told me that I'd be fine with trimec plus as long as I do the treatments early enough in the morning that the lawn was dry by the time temps get up to 85 or so.... if anyone has experienced otherwise, I'd be interested to hear about it..
 
#10 ·
I have experienced seeing sections of lawn turn brown and stay that way for 3 to 4 weeks from spraying and then having hotter temps. Even if the stuff IS applied during cooler temps, allowed to dry, and mixed very mild, 90 degree temps of even close is NOTHING to mess with. Even with Surge, as the label reads up to 90 degree temps, I think 3 way says the same thing. Don't be fooled, just because the label says up to these temps, doesn't mean that it's safe. For me, anything over 80 or so,....all bets are of. They can wait. Now, if there are jst a ew here and there. I just spot with a backpack or PG bottle. This way, I can focus on just the weed and not damage any surrounding turf. I just don't like to do any spotting with 11 ft. wide slashes from the sprayer in temps like this.
 
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#11 ·
Rayholio said:
I'm in the same boat as you bro.. my distributer told me that I'd be fine with trimec plus as long as I do the treatments early enough in the morning that the lawn was dry by the time temps get up to 85 or so.... if anyone has experienced otherwise, I'd be interested to hear about it..
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Don't use trimec plus if you are concerned about damaging the turf. MSMA loves to burn especially when applied heavy. Use Drive and trimec classic. Don't mix them unless you really need to. It is wastful to spray a broadleaf killer mixed with a grassy weed killer unless the lawn is totally infested with grassy and broadleaf weeds.
 
#12 ·
Rayholio said:
I'm in the same boat as you bro.. my distributer told me that I'd be fine with trimec plus as long as I do the treatments early enough in the morning that the lawn was dry by the time temps get up to 85 or so.... if anyone has experienced otherwise, I'd be interested to hear about it..
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In 2003 I sprayed an irrigated bluegrass lawn with Trimec Plus when the air temp was 83 degrees (I had a thermometer in my work truck).

The lawn burned, and several other customers had spot burn damage. Each of these lawns where irrigated and not currently showing stress.

I will never ever use Trimec Plus again.
 
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Discussion starter · #13 ·
MrBarefoot said:
In 2003 I sprayed an irrigated bluegrass lawn with Trimec Plus when the air temp was 83 degrees (I had a thermometer in my work truck).

The lawn burned, and several other customers had spot burn damage. Each of these lawns where irrigated and not currently showing stress.

I will never ever use Trimec Plus again.
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How did you handle the situation with the customers. How long before the burned spots come back?
 
#14 ·
MrBarefoot said:
In 2003 I sprayed an irrigated bluegrass lawn with Trimec Plus when the air temp was 83 degrees (I had a thermometer in my work truck).

The lawn burned, and several other customers had spot burn damage. Each of these lawns where irrigated and not currently showing stress.

I will never ever use Trimec Plus again.
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Been there, done that. 2000, 80 degrees, irrigated bluegrass. Spot spray smooth crabgrass in full sun. Tosted every spot I sprayed. I attributed it to inadequate soil moisture even though it was irrigated. No more Trimec Plus for me!
 
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