According to the label on HI-Yield KillZall "super concentrate" 41% Glyphosate..2 hours is stated. It supposedly has more surfactant which increases drying time and absorption.


"This is a non-selective liquid weed killer. KILLZALL® literally kills what it hits. It can be safely used around desirable plants as long as you control the spray so it only hits the foliage of weeds. KILLZALL® does not have any soil activity so it can not be absorbed by the roots of desirable plants.

KILL-ALL® has a high concentrate of glyphosphate (41%) the same active ingredient found in Honcho and Ranger Pro brand product.

HI-YIELD'S KILL-ZALL® is a price beater to begin with and because of the higher concentration, you’ll mix less into the water, making it just that much more economical than similar products.

••• Spray-on weeds and grass thoroughly ••• Contains a double-surfactant ultra formulation that dries on plant fast ••• Use near fences, in paths, patios, sidewalks, curbs and driveways, around ornamental trees, shrubs, flower beds and buildings."


http://www.hi-yield.com/products/Pro...bels/33692.pdf