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Old 07-24-2014, 08:01 PM
Spraytek Spraytek is offline
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Spraying Atrazine in high heat

Does anyone have any experience spraying Atrazine 4L in temperatures above 90? I've always heard not to spray it when the temperature is over 90, but I've never had the need to spray it at that time of the year. The Drexel label doesn't say anything about temp restrictions. Anyway, I've got several yards that I picked up earlier this summer that have chamber bitter and doveweed starting to emerge., so Atrazine would be my cheapest option to control both weeds. Any experience and suggestions would be appreciated.
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Old 07-24-2014, 09:04 PM
gregory gregory is offline
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good luck.......whats the turf your trying to treat?
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Old 07-25-2014, 08:38 AM
Spraytek Spraytek is offline
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Originally Posted by gregory View Post
good luck.......whats the turf your trying to treat?
St. Augustine
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Old 07-25-2014, 08:43 AM
grassmasterswilson grassmasterswilson is online now
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Have only used it with fall and spring apps.

Thought about celcius or msm?
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Old 07-25-2014, 08:55 AM
Spraytek Spraytek is offline
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Originally Posted by grassmasterswilson View Post
Have only used it with fall and spring apps.

Thought about celcius or msm?
Right, only spring and fall apps when it's used.
I tried MSM, and surprisingly, it didn't get the chamber bitter. I knew it wouldn't do much to the doveweed. I've sprayed celsius in a couple of the yards, but the doveweed is still going strong.
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Old 07-25-2014, 08:35 PM
RAlmaroad RAlmaroad is online now
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Please error on the side of caution. Spray only below 85. Have you considered Simazine instead of Atrazine which has lots of lateral movement. Never spray it around any trees closer than 10'. I like it in December to very early Spring for winter weeds.
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Old 07-25-2014, 09:36 PM
gregory gregory is offline
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might try dismiss for the doveweed...atrazine in the heat can be deadly to st aug.
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Old 07-26-2014, 03:58 PM
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DA Quality Lawn & YS DA Quality Lawn & YS is offline
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Quote:
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might try dismiss for the doveweed...atrazine in the heat can be deadly to st aug.
I think this statement could be applied anywhere in the US, when considering herbicide apps in high heat. Just don't do it.
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