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Rivers, MB | The way I understand it, the adsorption rate is roughly the same time as the rainfastness of a pesticide. Therefore, 1 hour should be enough with the glyphosate. The only time where this can be an issue is if you need the product to translocate into the roots of the plants to kill a perennial plant such as thistle or quackgrass. Then our understanding is that you need 2-3 days minimum. When trying to kill annual plants such as vol.wheat or other small weeds, we have sprayed and seeded in the same day with good results. However, I usually try to leave at least a day between spraying and seeding.
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