Andrew Hardy said: I have now seen it all!! I am seeing small Crabgrass plants establishing on my greens. Anyone have/had this issue and know of possible treatments?
Thanks
Andrew
I'm here in the panhandle of Tx......I have Seaside Bent on my back-9...Clay soil....I'm on my 3rd year here..When I first got here My #10 green was 75%+ Crabgrass....Been using "Anderson's Goose and Crab" but I believe it works better for Goosegrass. This year I had a hernia fixed, so I was out a week. Came back and looked at my back 9 greens and I was already seeing breakthrough.....Had quite a bit of spring rain. I had the "Anderson's 9-0-18 w/.164% dithiopyr" on hand. I applied it on June 6th @ the .25lbs/acre rate to all the back 9 greens. The next week I applied "Quinclorac" @.18oz's/1000sq.ft=about 8oz's/acre.....no mentholated seed oil with it. At this time I'm 100% crabgrass free. My front 9 greens are Penncross sand greens and I didn't see the early breakthrough like I did on the back..."Anderson's" is only labeled for Certain varieties of bent. It did state on the label, that it could be injurious to both the Seaside variety of bent and also to Poa Annua. The Quinclorac is not labeled for bentgrass greens either. Neither products injured my turf at all. I will stick with Dithiopyr as a pre and post program from here on out. I also used flooding nozzel's with the Quinclorac application. I was informed that it will hit more of the leaf surface, as opposed to fan nozzel's. I just wanted to cover the leaf and not get deep into the canopy.
I had to do something and It Worked.
Good Luck!