I've used Roundup Concentrate (for the woody plants) and have experienced excellent results with it.

It works best when daytime temps stay above 60° and the plants are "active" in their growing cycle.

Yellowing/death is usually 1-3 days, total die-off is within the 10-day period after the initial spraying.

Last year, I decided to try Crossbow at my northern transmitter site...it took a longer time for it to even show yellowing, let alone death. I started seeing some re-growth of thistles and prairie grass about 4 weeks later...I sprayed again and then it seemed to stick. I'm still out on the final decision about the Crossbow stuff.

But, so far, I'm stocking up on the Roundup for this year. If the Crossbow takes as much time to kick in like last year, then I've got the backup ready.

Ya' got to go with what works!

BTW, what are you paying per quart? I'm getting it for about $25.50, at the local Wal*Farts.

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M. G. Burg
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“I didn’t really say everything I said.”
. . . . . . . . . . . . . . . . . . ~ Yogi Berra ~