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what kills volunteer sunflowers??
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mennoboy
Posted 6/1/2009 21:42 (#729603)
Subject: what kills volunteer sunflowers??


Rivers, MB
Have had mixed results last few years killing vol. sunflowers in hard red spring wheat. What do you guys use?
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123agscout
Posted 6/1/2009 22:04 (#729634 - in reply to #729603)
Subject: RE: what kills volunteer sunflowers??


east central south dakota
Wolpack advanced is the cheapest at 20 oz
Huskie seems to work also.
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amfarms
Posted 6/1/2009 22:30 (#729691 - in reply to #729603)
Subject: Re: what kills volunteer sunflowers??


NWMN
I've had good control with 2-4D. Also Affinity works very well, just don't skimp on the rate.
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mennoboy
Posted 6/1/2009 23:34 (#729830 - in reply to #729634)
Subject: RE: what kills volunteer sunflowers??


Rivers, MB
Not familiar with those trade names. Don't have them in Canada. What's the chemical name in those? thanks
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mennoboy
Posted 6/2/2009 00:45 (#729893 - in reply to #729603)
Subject: Re: what kills volunteer sunflowers??


Rivers, MB
I have used Buctril M (bromoxinyl + MCPA) and Infinity (pyrafentrazone???). Both seemed to slow the vol. sunflower down but it seemed to grow through it for a while. They never ended up growing taller than the wheat which I guess should be good enough. However, I would have thought that the sunflower should wither and die soon after taking in chemical. Sunflowers (when growing a whole field of them) seem to be highly susceptable to any small amount of chemical drift or even the smell of chemical in the air so I am surprised that not any herbicide that kills broadleaf weeds in wheat does not totally eliminate vol. sunflowers.
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tobaboy
Posted 6/2/2009 07:51 (#730015 - in reply to #729893)
Subject: Re: what kills volunteer sunflowers??


Brandon MB
pretty sure I read last night that triton k was registered for controlling sunflowers?
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unclefuf
Posted 6/2/2009 22:34 (#730873 - in reply to #730015)
Subject: Re: what kills volunteer sunflowers??


Southeast Colorado
amazing that it takes something better than 2-4-D to kill a volunteer when it will sure mess up the ones a guy tries to grow.
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