AgTalk Home
AgTalk Home
Search Forums | Classifieds (203) | Skins | Language
You are logged in as a guest. ( logon | register )

Too hot for glyphosate
View previous thread :: View next thread
   Forums List -> Crop TalkMessage format
 
reddirtwheatfarmer
Posted 6/23/2012 14:18 (#2445426)
Subject: Too hot for glyphosate


Weatherford, OK		At what temp to glypho become ineffective?
Top of the page Bottom of the page
boog
Posted 6/23/2012 16:40 (#2445604 - in reply to #2445426)
Subject: Re: Too hot for glyphosate



spray a couple hundred acres earlier this week with temps 90 - 93ยบ. I could see weeds starting to turn yellow in 3 days. Will see if they continue to die
Top of the page Bottom of the page
Red/Green
Posted 6/23/2012 16:50 (#2445616 - in reply to #2445604)
Subject: Re: Too hot for glyphosate


Elizabethtown,KY		I always heard that it is good to spray in the mornings and quit by noon when it is this hot, as the weeds take in the Roundup better when it is cooler. My custom sprayer did my last 200 acres this week, he sprayed in mornings and the weeds and grass are already turning yellow.
Top of the page Bottom of the page
boog
Posted 6/24/2012 00:03 (#2446268 - in reply to #2445616)
Subject: Re: Too hot for glyphosate



I quit around 3:00 though our chemical dealer said not to worry about it
Top of the page Bottom of the page
emtbd1979
Posted 6/23/2012 16:48 (#2445612 - in reply to #2445426)
Subject: Re: Too hot for glyphosate



west central illinois		I do not spray once it gets above 90. Seems the weeds do not respond well above that temp. I usually start early morning and then quit around noon if I need to or soon after.
Top of the page Bottom of the page
farmerboy50
Posted 6/23/2012 16:52 (#2445621 - in reply to #2445612)
Subject: +1


West Texas		Especially if the humidity is low!
Top of the page Bottom of the page
Shawn michigan
Posted 6/23/2012 20:24 (#2445926 - in reply to #2445426)
Subject: Re: Too hot for glyphosate


AS long as you have moisture for them to grow good we haven't seen a problem. But when it is dry heat matters. The weeds shut down in the hottest weather and wont take up the roundup.
Top of the page Bottom of the page
SteigerSt320
Posted 6/24/2012 09:44 (#2446611 - in reply to #2445426)
Subject: Re: Too hot for glyphosate


Northeast Louisiana		I agree with Shawn michigan, as the plant "shut down" to battle the heat. It close it's "pores" in the leaves to retain its moisture in plant to survive. As it cool down, the pores will open back up. Thus allowing for intake. If you have good moisture and growing good when its hot, you should get a good kill. But if it's dry and hot during mid-day. It's harder to kill. Foliar feeding works the same way. I have done alot of foliar feeding cotton in eary am to achieve results.
Top of the page Bottom of the page
Jump to forum :
Search this forum
Printer friendly version
E-mail a link to this thread

(Delete cookies)