re: Spring Weed Guide For Lawns

Nothing but a nonselective herbicide like glyphosate will actually kill the torpedo, but MSMA sure does burn it back quite well. I went to a seminar by the LSU AgCenter a few weeks back and took some interesting notes about some products they were testing on torpedo. When I get to my desk in the morning I'll look em up and get back to you.

It's possible I'm sure, but in my experience all that really happens is it stays knocked back good enough that you don't notice it and when you quit spraying the rhizomes under the surface start producing the grass again. It's a bitch.

Yes, you can. Celsius is actually labeled for use with MSMA as a Dallisgrass herbicide. I've had pretty good knock down on torpedo with just the Celsius.

Hope to be laying the smack on the sedge this week, myself.

ETA: I'm gonna go to my office and look up that chemical for you today. Sorry, forgot about it the other day.

Best thing is to get the buttonweed knocked out in the spring with metsulfuron or a three way broadleaf herbicide. Tough to beat it now...it's such a pain in the arse.

Awesome. Thanks man.

That's a broadleaf herbicide, so you need another route. What type of lawn grass do you have?

In St Aug, it's tough to kill emerged crabgrass. It's an annual, that has to emerge from seeds every year, so pre-emergents are the best option. I'm going to assume you don't have a restricted pesticide license, so your beat best is to just beat it back with Atrazine. Make sure temps are below 90°, and hit it as often as the label specifies is allowed. You can get Atrazine just about anywhere.

I had St. Aug laid in late March. It's grown in well but they didn't treat or fertilize when they laid the sod and I can see some weeds sprouting. Not a lot, but enough for my OCD self to notice.

Anything I should put on it now? Or just wait until fall when cooler?

I've got about 5,000sqft. Only about 5 of these cropping up.