Originally Posted by
MichaelH
If you have a Tractor Supply store in your area, you can pick up a big jug of concetrate weed killer that has I believe 40% Glyphosate. It's generic Round Up for much cheaper. Tilling the soil will turn up seeds and can grow more weeds, but you may need to soften that ground at least once. May be able to avoid it the following year.
And dilute the solution, of course.
40% is extreme overkill for killing weeds. You only need a couple of % solution to kill weeds. The key to effective herbicide application is to do it when the leaves are green (must be photosynthesizing to work) and to make sure it sits on the leaves for at least 4 hours before it rains. Otherwise, it will kill most of whatever you spray it on. You can plant within a week or two after application, because glyphosate breaks down when in contact with the soil. By the time your food plot is germinating, the Roundup will have done it's thing.
And make sure it's actually
Glyphosate, and not 2-4D or some other chemical. Glyphosate (Roundup) breaks down quickly, whereas many of the others are persistent in the soil and will kill your food plot.