Kills heavy crabgrass after two or theee applications. Other common weeds it kills in one application. I like that it's a concentrate, just mix 4oz with a gallon of water in a sprayer and you can cover a lot of weeds. Didn't harm my turf type fescue.

Kills. If that is what you want? You got it. Best done two or three times for all season ressults. I needed to clear my gravel driveway this summer thanks to the wet weather. Don't know about selectivity as everything I spray it on shrivels and dies after a week or so. I used 2.5 to 3 ounces to a gallon.

Following my previous feedback and now after more than a week of spraying, the weeds are still nice and green as if I sprayed water on them instead of pesticides. I also took notice that none of the weeds (there were several different types) were affected. I was thinking maybe it would only work on certain ones but nothing. Needless to say I am more than disappointed after spending time mixing (yes i followed the directions of mixing) and taken the time to which i don't really have to spray my whole backyard.

DON'T WASTE YOUR $ HERE!!!!!

I have a back yard that gets a lot of shade, and though it has SOME grass, it's mostly been overgrown with all types of weeds. I thought I could kill everything besides the grass and try to grow a decent lawn there. I applied Bayer as directed with a tank sprayer early in the morning, and then again in two weeks. I sprayed over everything, and did not direct at the roots since that would have been near impossible. It only seems to have affected one little patch of weeds that was all of one type. Everything else seems to have been totally unaffected. I don't want to use glyphosphate, since that would take the grass with it. I noticed while applying that many of the plant leaves' waxy coating just let the Bayer solution roll right off.

Didn't kill them fully until I chopped them down two weeks later. Just made them go limp... Waste of money