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Roundup is made to be a topical plant killer--you spray it on the leaves and that and sunlight kill the plant. If you want to keep seeds that are in the ground from germinating, you would use a pre-emergent weed killer. Put this down on your yard before a rain or water it in, and you should be weed free for a few months.
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoNo, it is not active after it contacts the soil.
Wiki User
∙ 14y agoIt is not active in the soil after it is applied (meaning it does not prevent any weeds after it is sprayed) but it does have a soil half life of 47 days.
Wiki User
∙ 13y agoYes it will. Roundup is a non selective weed and grass killer so if you spray it on your grass it will die.
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WHAT WILL Kill unwanted maiden grass?
According to sources, Roundup
Will round up kill monkey grass?
Yes it will. Roundup will kill all grasses, including ornamental grasses like Monkey grass.
Will roundup kill dormant bermada grass?
It's not quite time for roundup but if you POUR BOILING WATER ON IT that will work any time of year.
How do you kill tall fascue grass?
The only thing I have found that will kill tall fescue or creeping fescue is "Roundup."tm
Can a diluted dose of Roundup be used on Junipers to kill grass without damaging Junipers?
it will still harm your junipers. why not buy grass specific herbicides? there are more expensive but will only kill grass like weeds.
What does roundup ready mean in plant science?
Roundup is the name of a herbicide used by farmers to kill weeds. A plant is said to be roundup ready if it is resistant to roundup, so that you can spray a field with roundup and it will kill the weeds but won't kill the roundup ready crop.
Will round-up kill Blueberry Bush?
Yes, Roundup Weed and Grass killer will kill almost anything that is green and growing. It will only kill the bush however if it is applied directly to the plant. Regular ready to use Roundup will not move through soil if it is applied around the plant.
Does roundup kill Saint Augustine?
Yes it will. Roundup will kill almost anything that is green and growing.
What grasses does roundup kill?
all of them, roundup is not a selective herbicide
Can you plant grass seed in the summer?
Yes, but you will have better results if you kill your existing grass now with glyphosate (RoundUp, yes I know they are evil but it works) and wait until late summer.
How do you get rid of wire grass on your lawn?
Wire Grass can be a pretty invasive weed. Unfortunately, there is no selective way to kill wire grass in your lawn. The best thing to do is to use ready to use Roundup and spot treat the wire grass. Once the wire grass is dead you can plant grass seed in any bare areas left by the dead wire grass. You have to be careful using Roundup in lawns because it kills all grass, so just spot treat the wire grass.
Will spraying weeds with Roundup 50 ft away from a garden make the weeds produce a mold that will creep across grass and kill tomato plants?
No.
