Thank you much... I've been doing some research on what all I have in my yard, and it seems I've got a lot of the undesirable grasses like Goosegrass, crabgrass, quackgrass, etc... I also live in SW Ohio where we typically have bluegrass in our yard... being as it's summer now, what do you think would be the best strategy for the coming months... I know/think I need to overseed in September... is it too late to use Scotts weed control now? I will definitely check out the scotts forums... I have been starting to try and use their products, but need to be more consistent and follow a better schedule about it. Thanks! ~Carl

That's not goosegrass, it's nutsedge. Nutsedge is a royal PITA! It makes sense that it's growing where it's getting plenty of moisture, because it does like moist areas. Although it will survive and thrive in areas that are not necessarily moist, and is an excellent reproducer, so get rid of it now! It's very easy to pull up - HOWEVER, it has little root tubers which stay in the soil even though roots come up when you pull it. Then next year, you'll have a dozen to replace each one you pulled. I learned this the hard way. The only herbicide that will kill nutsedge is Sedgehammer. You probably won't see it at Lowe's or someplace like that, but nurseries and garden centers usually carry it. Deanna Here is a link that might be useful: Nutsedge

diclemeg, In the past I have treated moderate areas of POA that kept coming back. 20-50 sq/ft areas, and some smaller. These areas are a bit shady and damp, very good POA enviroment. I hit the POA with round up. Waited for the death. Then heavily aerated the spots, or vigorously raked them to loosen the first inch or 2 of soil. Seeded with elite KBG, raked in seeds. Well, in weeks these areas were mostly KBG. But by next spring there were more POA spots in different places. I was able to grow mostly KBG in the areas that I killed off the POA. The following year, more POA showed up, but not because of my actions, but the more due to the shady damp area of my front lawn I was trying to grow KBG. I gave up treating this area until I get rid of the trees that shade it. What's my point? I can't imagine your entire lawn shady and damp like my front corner where I keep getting loads of POA no matter what. You may have just been unlucky in your first attempt at seeding...or maybe it was the heavy dosage of the wrong fertilizer that stunted your KBG growth that allowed the POA to dominate. What can you do? Get some RU now, and carefully spray the POA. Hopefully it will kill it, it is pretty late to try, but worth a shot. Next...wait. Wait until the ground is frozen solid. Then spread some KBG seed on the bare spots, dormant seed. Then wait, do nothing. Enjoy the winter and forget about the grass. Wait until at least the middle of May before doing anything. Hopefully the seeds will have sprouted. Oh, there will be some POA, but there will be some KBG there too. This will improve your situation, it won't fix it, but it will help and really is all you can do now at this time of the year. It is better than waiting for next spring to take action.

I'm assuming you might be in the Toronto area. If so, the crabgrass started germinating about three weeks ago and with all the heat, it is a banner year for it. It is an annual, but it will come back next year unless you get ALL the plants pulled before it goes to seed. The seeds will also wash down the street from neighboring properties if they let their crabgrass go to seed. If you have lots of crabgrass around you or you miss a few plants before they go to seed you may want to apply a crabgrass preventer next spring (Unless you live IN Toronto, then you can't apply anything because of the pesticide bylaw).