Should I put down some Halts in Sept/Oct as well as in early Spring? I read that some where. I have basic builders bermuda so not sure what strand. Just ranting!

Bermuda likes to be cut short and often. This is what causes it to spread and choke out the other plants.

A.P.

Unless you already have MSMA on your shelf, you won't find it for purchase as its production has been discontinued. If the crabgrass is still at, or less than, the 3 leaf stage, you can apply Dimension herbicide at label rate to control crabgrass for the remainder of the season. Dimension has pre-emerge and post-emerge activity so you may be able to control the currently emerging crabgrass as well as any crabgrass that is yet to germinate this year. If the crabgrass is more mature than 3 leaf stage, then you can spray Drive herbicide (quinclorac) for post-emerge crabgrass control.

The way to grow your bermuda thicker is to keep mowing it low (1"-1.5"). Growing it taller will not allow it to thicken.

After having said all this, I just re-read your post. Your description is of "leafy, broad looking leaves". Are you sure it is crabgrass? Could you post a picture for definite weed ID?

I do have 2 more bags of halts sitting in my garage. I should have re-applied in early May. Should I put it out there now or am I too later? I know it wont kill establish but maybe I can prevent the august crab grass?

Also I looked up the Dimension products and wow they are expensive. Is this active ingredient in anything I would find at Lowes or HD? Thanks.

Best advice is keep the Bermuda cut short and often @ around 1-inch or as low as your rotary mower will cut without scalping. In addition use year round Pre-emergence as prevention (every 3 to 4 months depending on which product you use) is the best approach rather than waiting until you have a problem. It is like smoking, the best cure of lung cancer is not to smoke to begin with. Once you have it too bad, you are going to die.

My problem with the Dimension products is that I find it impossible to find it without fertilizer included. I don't need fertilizer on my Bermuda lawn in late February and I don't want it in September. I use organic fertilizers and would prefer to buy just plain old pre-emergent without the added product.

One yard expert I talked to seems to think that because I did not lay down Halts in 2010 that it could take a year or 2 to completey get rid of it. So I'm gonna Halts in Sept to help w/ winter weeds, use the Scotts winterizer stuff in OCT, then Halts in late Feb/early MAR and again in late APR/early May. I might try the Dimension stuff though now that I think about it.

For Bermuda grass you might look into AMAZE

I had a huge patch of it. Every evening after work, I'd sit on the lawn and pull the stuff out.
It was actually rather relaxing and therapeutic after a rough day in the office :)
There were a lot of gaps left after that, but I reseeded and things are just fine now.

Pesticides are no longer allowed in my town, but as long as the lawn is dense it pops up only along paths and cracks etc. It's not a big chore as long as the patches are small.

Im not saying what you have is DG, just giving my experience to share.

Dallisgrass (a perennial) is quite often mistaken for crabgrass (an annual). Here are some pictures.

The image above is dallisgrass.

The image below is crabgrass. You can see how they would be confused.

Here is the most distinguishing feature - the seed head.

The image above is the dallisgrass seed head. Note it has three spikes on a stalk.

This is a crabgrass seed head. It is a brush type of seed head with anywhere from 2 to 9 spikelets.