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Chris from Bristow, Oklahoma writes

How long is Killzall effective for? How long will one application last?

Answer:

Killzall Weed and Grass Killer - 41% Glyphosate can remain effective for many weeks after application. If you are planning on reseeding or replanting, be sure to wait for at least 2-3 weeks. 

Answer last updated on: 05/11/2016

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