Weed killer right before it rains

3.5 hours should have been long enough for it to nuke stuff. Only problem may be runoff killing stuff you didn't want dead. I've always heard 1 hour is long enough for it to sit.

Wife checked weather and said 0% chance all weekend. Then it rained later. Go figure.

It takes two weeks to fully kill everything normally so it will be a while before I know. Just got me worried bcs killzall ain't cheap.

As long as it dries on the leaf, you are fine. 1 hour should suffice.

How much is killzall per gallon?

If you used the aqutic herbicide brand it will still work, and most likely will kill you neighbors weeds as well.

I don't know what killzall os, but if its just roundup, you can get a 2.5 gallon jug of name brand roundup for around $40 and A 2.5 gallon jug of generic for around $25.

Put a little bit of dish detergent like dawn in there. It will act as a surfactant, which makes it stick. It will improve your results.

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So to answer the OP, you should be fine.

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Thanks bud.

This is what I used to buy for about $25 at a local feed store. Just found it for $14 online.


Just got this for $59.99 and should have me set for a few years. Its cheaper with the bigger quantities.



I've found this stuff to be the best out there. I have a corner lot with a deep ditch so I spray it real good a few times a year and no weed eating for this guy. It takes about 10-14 days to really kick in.