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-   -   crab grass and new grass (http://www.diychatroom.com/f16/crab-grass-new-grass-41257/)

mike4 03-28-2009 08:03 AM

crab grass and new grass
 
I have seen on some landscaping shows were there is a fertilizer and crab grass preventer in one mixture. Per the program you can plant grass seeds apply this fertilizer which will also prevent crab grass, but they never say the brand or where it can be bought. Any ideas?

downunder 03-28-2009 04:30 PM

Quote:

Per the program you can plant grass seeds apply this fertilizer which will also prevent crab grass
Whoa! Hold the phone! Don't do it!

Rewind and watch that show again. You absolutely cannot put any kind of crabgrass/weed etc preventer and grass seed anywhere near the same time! Think about the process. Any kind of preventer, which is called a pre-emergent herbicide, keeps the grass from germinating- or more correctly keeps the newly germinated grass from putting out roots. Some herbicides are more effective than others on certain kinds of weeds but that is not the point here. You can find these products at any HD/Lowes/WM, etc. Go read the label on any of them. They will all tell you DO NOT used within a certain number of weeks (give or take about 12 weeks) before or after sowing lawn seed.

If you already have a lawn, this would be an excellent time to apply these products. But, not if you are planning any seeding in the near future.

mike4 03-30-2009 07:33 AM

greenview
 
Downunder,
I did find a product that says it will prevent crab grass while not prohibiting the growth of new grass seeds.....so they say. Greenviewfertilizer.com...seems kinda a pricy though....$50.00 for 5,000sqft.

downunder 03-30-2009 05:18 PM

Gotta learn something today I guess. I'll have to check that product out.

Bob Mariani 03-30-2009 06:16 PM

There are others. I use these a lot as I expand the lawns. Also when I plant new lawn. I use Lebanon brand 12-24-11 w/ Tupersan. It is specifcally a pre-emergent crab grass preventor when also planting new grass seeds.

downunder 03-31-2009 07:55 PM

Mike, is this the product you found?

http://www.greenviewfertilizer.com/p...L-GRV30128.pdf


Established Cool Season Turfgrasses
- Kentucky bluegrass, perennial ryegrass, fine and tall fescues.

Established Warm Season Turfgrasses


- Bahiagrass, bermudagrass, buffalograss, centipedegrass,

zoysiagrass, St. Augustinegrass (except ‘Floratam’).

Do not use this product on seedling buffalograss in the spring of the first year of establishment until
the turfgrass is fully green and has established new roots.
Do not use Greenview Fairway Formula Spring Fertilizer Weed & Feed and Crabgrass Preventer on
colonial bentgrass, dichondra, carpetgrass, or ‘Floratam’ St. Augustinegrass.
If the lawn has been seeded recently, wait until after the third mowing before using this product. Do
not seed, overseed or sprig the treated area for 10 weeks after application




Or this?
http://www.greenviewfertilizer.com/p...L-GRV30115.pdf


All of their products with dithiopyr (Dimension) are labeled for use on established turf. See above.

Wish I could get off of their font after copy/paste.

downunder 03-31-2009 08:14 PM

Quote:

It is specifcally a pre-emergent crab grass preventor when also planting new grass seeds.
For cool season grasses.

Quote:

Eliminates bermudagrass encroachment onto bentgrass greens.

Labeled for Kentucky bluegrass, tall fescue, perennial ryegrass, bentgrass most common cool-season grasses and zoysia sprigs.
From their page.

Leoskee 04-02-2009 03:02 PM

I use Scotts Summer Fertilizer with Halts crabgrass preventer. Its not perfect but it works well enough to keep things managable.

But the best remedy for crabgrass is to keep your grass lush and thick. Once I was able to get my grass growing well it prevented the crabgrass from rooting and attacking the lawn. The grass made the crabgrass seedlings stand out and all I had to do was pull it up because it could not reach the soil.

ccarlisle 04-02-2009 06:12 PM

May be corn gluten meal under a variety of names.....TurfMaize jumps to mind, Scott's Turf Builder is another...is this what you eman?

mattman 04-13-2009 07:57 PM

Quote:

Originally Posted by Leoskee (Post 254047)
But the best remedy for crabgrass is to keep your grass lush and thick. Once I was able to get my grass growing well it prevented the crabgrass from rooting and attacking the lawn. The grass made the crabgrass seedlings stand out and all I had to do was pull it up because it could not reach the soil.


This is what I have done too. I went to a fine fescew and let it grow to about 4" in height and it is doing a good job at choking out the crabgrass, what is left gets pulled up.

LawnGuyLandSparky 04-14-2009 04:31 AM

Whatever you do, good luck. I still have a nice chunk of crabgrass that reappears every year. I think it's rooted deep within most of China.


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