Return to the Organic Lawn Care Forum | Post a Follow-Up

Can't find CGM, other options?

Posted by highalttransplant z4/5CO (My Page) on
Tue, Feb 20, 07 at 13:44

We just had new sod put down late last summer, and I would like to avoid chemical fertilizers if possible. The problem is I can't find any CGM in my area. There are only two feed stores, and they only carry cracked corn. They DO have soybean meal for $11 - $12 per 50lb. bag, but my understanding (after reading the FAQ's) is that won't help with weed control.

Should I go ahead and use the soybean meal, and then purchase a Weed Hound, because there WILL be plenty of weeds to pull?

Follow-Up Postings:

RE: Can't find CGM, other options?

There doesn't have to be a lot of weeds. For now you are supposed to water daily to get the roots established. I would continue that for at most 2 weeks and then start to back off, quickly. I would start watering only every other day for a longer period to get the water deeper in the soil. Your goal is to water only once a week. I water once a week for 1-3 hours per zone.

Also be sure to keep your mower at the highest setting for maximum shade to the ground. These two techniques will do more for weed control than CGM will.

RE: Can't find CGM, other options?

David--Did you miss that the resodding happened last summer?

By now, the sod should be well established and not require daily watering. Depending on where in CO highalttransplant (HAT) is, daily watering may well not be allowed, anyway.

HAT, do you have reason to believe that you'll have a weed problem that requires a preemergent? If the sod is well established and growing nicely, you may well be able to keep weeds at bay by cultural practices.

Water infrequently and deeply (no more than once a week, but an inch at a time when you water), and mow the lawn at the highest setting of the lawn mower. Those two practices will keep most weeds at bay, and also save you a little water. You lose less water to evaporation, encourage deep root growth and shade the soil and roots with the taller grass.

Also, always mulch mow. That will save water, too, since it returns the water from the grass to the soil, and it also saves on fertilizer costs (all the fertilizer goes into producing grass, so why throw it away when you can return it to the soil?).

RE: Can't find CGM, other options?

Bpgreen, you are correct that we can't run a sprinkler syster here this time of year. They usually blow them out in late October, and they probably won't get turned back on until April. If it needs to be watered before then, I can hook up a manual sprinkler to a hose. Our sprinkler system is set up to run off either our main water line, or can utilize the irrigation ditch water that the town provides from May - Sept.

As far as the weed situation goes, the yard was tilled twice before the sod was laid down, but there were several delays, and by the time it actually went in, there were a few patches of bindweed and other various weeds growing again, which I am pretty sure will come back to haunt me.

If I just use the soybean meal, when should I put it down?

RE: Can't find CGM, other options?

You actually have an option on the bindweed that most others don't. That's fortunate, since tilling bindweed merely encourages it.

There are mites that attack bindweed, and they're available to CO residents, I think through the extension service. You might want to post a question on the Rocky Mountain forum to find out how to get the mites.

CGM won't help with bindweed. Bindweed is a perennial, and CGM only helps with annuals by inhibiting germination.

I can't answer on the soybean meal, but I'm sure somebody else will chime in.

RE: Can't find CGM, other options?

Below is a link to the Colorado State Extension Service. At the bottom of the page are recommended nitrogen amounts and application timing for various situations.

Since SBM is 7% nitrogen by weight, 100 lbs of SBM contains 7 lbs of nitrogen. This information is used to calculate the amount of SBM needed. For example, for a 7,000 sq ft lawn at an application rate of 1 lb of nitrogen per 1,000 sq ft, 100 lbs of SBM is required.


Colorado Lawn Care

RE: Can't find CGM, other options?

Thanks deerslayer! That information is exactly what I was looking for.

Now about that bindweed ... without using harsh chemicals, or spending half my day pulling that stuff out by hand, is there a way to get rid of it???

RE: Can't find CGM, other options?

Contact your extension service and ask about bindweed mites. I think the extension offices can provide them at little or no cost.

RE: Can't find CGM, other options?

I'm sorry bpgreen. You answered my question in your previous post, but I got sidetracked by the link that deerslayer provided. I will check into those mites, as bindweed is rampant around here. Thanks for the information.

BTW, will a Weed Hound get more of the roots up than pulling by hand, or does it just make weeding quicker?

RE: Can't find CGM, other options?

A weedhound won't help with bindweed. It'll work fine for weeds like dandelions, and will get more of the root as well as do it more easily, but it's not much good for something like bindweed.

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Organic Lawn Care Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here