Re: Weed killer
[Re: Tommie]
#6566973
07/02/19 11:07 PM
07/02/19 11:07 PM
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Joined: Dec 2010
Posts: 34,751 Central, SD
Law Dog
trapper
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trapper
Joined: Dec 2010
Posts: 34,751
Central, SD
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Up to a year? I thought round up was 10 days before things would grow.
Was born in a Big City Will die in the Country OK with that!
Jerry Herbst
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Re: Weed killer
[Re: Tommie]
#6567042
07/03/19 06:02 AM
07/03/19 06:02 AM
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Joined: Apr 2015
Posts: 2,574 NH
trapNH
trapper
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trapper
Joined: Apr 2015
Posts: 2,574
NH
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Re: Weed killer
[Re: Tommie]
#6567046
07/03/19 06:22 AM
07/03/19 06:22 AM
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Joined: Mar 2019
Posts: 1,497 Southern NJ
maintenanceguy
trapper
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trapper
Joined: Mar 2019
Posts: 1,497
Southern NJ
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This has two ingredients.
Glyphosate is Roundup. Roundup is absorbed by any green part of the plant and stops photosynthesis. The plant can't make sugar from sunlight any more and it dies. Roundup has absolutely no residual action. Because it is absorbed by leaves and green stems, it won't hurt a plant if it's in the soil. You can spray roundup this morning and plant something in the same spot this afternoon - as long as you don't get the roundup on the leaves or stems of the new plant.
imazapyr is absorbed by the roots and prevents the plant from making some proteins it needs to grow. Because it's absorbed by the roots, it has some residual action. The next plant will die too if it's in the same soil. But, Imazapyr moves in the soil with rain. If you spray a 6" wide strip under a fence, you might end up with a 2' wide dead zone because it moves. As long as it's in the soil it will still do it's job. Because it's absorbed by roots, you have to be careful not to spray it near the roots of anything you don't want to kill.
My preference for residual control is Roundup + Surflan. Roundup kills the plants that are there now. Surflan prevents new seeds from germinating. Surflan does not harm plants that have already germinated. Surflan is used to control weeds in corn and other crops by spraying over the corn that has already emerged and does no damage to the corn. I can spray it under the canopy of trees or in other areas where there are roots. It binds to the soil so it stays where I spray it. Roundup kills growing plants, Surflan stops new ones from sprouting. Control is up to 12 months.
The only down side of Surflan is that it includes a bright orange marker to make it easier to see where your last pass was with the sprayer. That's fine until you're spraying near a sidewalk or other place where you don't want bright orange spray.
-Ryan
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Re: Weed killer
[Re: Tommie]
#6567069
07/03/19 07:28 AM
07/03/19 07:28 AM
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Joined: Aug 2011
Posts: 45,261 james bay frontierOnt.
Boco
trapper
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trapper
Joined: Aug 2011
Posts: 45,261
james bay frontierOnt.
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Isnt there a large class action lawsuit going on over that stuff-a bunch of people with cancer?
Forget that fear of gravity-get a little savagery in your life.
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Re: Weed killer
[Re: Boco]
#6567110
07/03/19 08:37 AM
07/03/19 08:37 AM
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Joined: Dec 2013
Posts: 14,801 Greene County,Virginia
run
trapper
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trapper
Joined: Dec 2013
Posts: 14,801
Greene County,Virginia
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Isnt there a large class action lawsuit going on over that stuff-a bunch of people with cancer? X2
wanna be goat farmer.
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Re: Weed killer
[Re: maintenanceguy]
#6567133
07/03/19 09:03 AM
07/03/19 09:03 AM
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Joined: Feb 2014
Posts: 13,056 Ky
jbyrd63
trapper
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trapper
Joined: Feb 2014
Posts: 13,056
Ky
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This has two ingredients.
Glyphosate is Roundup. Roundup is absorbed by any green part of the plant and stops photosynthesis. The plant can't make sugar from sunlight any more and it dies. Roundup has absolutely no residual action. Because it is absorbed by leaves and green stems, it won't hurt a plant if it's in the soil. You can spray roundup this morning and plant something in the same spot this afternoon - as long as you don't get the roundup on the leaves or stems of the new plant.
imazapyr is absorbed by the roots and prevents the plant from making some proteins it needs to grow. Because it's absorbed by the roots, it has some residual action. The next plant will die too if it's in the same soil. But, Imazapyr moves in the soil with rain. If you spray a 6" wide strip under a fence, you might end up with a 2' wide dead zone because it moves. As long as it's in the soil it will still do it's job. Because it's absorbed by roots, you have to be careful not to spray it near the roots of anything you don't want to kill.
My preference for residual control is Roundup + Surflan. Roundup kills the plants that are there now. Surflan prevents new seeds from germinating. Surflan does not harm plants that have already germinated. Surflan is used to control weeds in corn and other crops by spraying over the corn that has already emerged and does no damage to the corn. I can spray it under the canopy of trees or in other areas where there are roots. It binds to the soil so it stays where I spray it. Roundup kills growing plants, Surflan stops new ones from sprouting. Control is up to 12 months.
The only down side of Surflan is that it includes a bright orange marker to make it easier to see where your last pass was with the sprayer. That's fine until you're spraying near a sidewalk or other place where you don't want bright orange spray. Yea what he said^^^^^^^^
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