Preen

yotetrapper · February 22, 2010

Anyone use their organic veggie weed killer? Does it work?

Suze · February 22, 2010

I think it's a steep price to pay for what is just basically corn gluten meal in a pretty package. Less expensive at the feed store.

Having said that, corn gluten meal can be a fairly good pre-emergent if applied on the top layer of soil. Along with a shredded leaf mulch, I use it for my alliums and other root crops to keep weeds to a minimum.

I also use it in the spring on my lawn as both a feed and a pre-emergent.

Edit/add - CGM is not going to kill existing weeds, though.

creister · February 24, 2010

Also, don't apply CGM in places you plan to plant from seed, unless you will apply at least 90 days before seeding, otherwise you may kill the stuff you seeded.

I also use it on my lawn. I like to put down dry molasses a few weeks before the cgm to increase microbe activity.

wmontanez · February 26, 2010

I purchased Preen to control crabgrass but now my concern is that this preemergent might contain GMO corn since more than 50% of the commercial corn and soybeans in the United States is grown from GMO Seed. On other hand using corn gluten can reduce the need for other toxic herbicides. Since I am a home gardener I decided to continue to weed by hand.

**mdvpc** · February 26, 2010

I have used corn gluten meal, and it works great. Feeds the lawn, stops weeds from emerging. Had to stop using it because it attracted so many birds my wife banned it!

grizlbr · July 10, 2011

SUZE- not about the message but your avatar pic is too cute! ~MrsGrizlbr~

February 22, 2010	#1
yotetrapper Tomatovillian™ Join Date: Dec 2009 Location: Oakland MS Posts: 231	Preen Anyone use their organic veggie weed killer? Does it work?

February 26, 2010	#4
wmontanez Tomatovillian™ Join Date: Jan 2010 Location: MA Posts: 776	Is GMO corn used to make this product? I purchased Preen to control crabgrass but now my concern is that this preemergent might contain GMO corn since more than 50% of the commercial corn and soybeans in the United States is grown from GMO Seed. On other hand using corn gluten can reduce the need for other toxic herbicides. Since I am a home gardener I decided to continue to weed by hand. __________________ Wendy

February 26, 2010	#5
mdvpc Tomatoville® Moderator Join Date: Jan 2006 Location: San Antonio, Texas Posts: 4,386	I have used corn gluten meal, and it works great. Feeds the lawn, stops weeds from emerging. Had to stop using it because it attracted so many birds my wife banned it! __________________ Michael

July 10, 2011	#6
grizlbr Tomatovillian™ Join Date: Jul 2011 Location: Ga Posts: 9	SUZE- not about the message but your avatar pic is too cute! ~MrsGrizlbr~ Last edited by grizlbr; July 10, 2011 at 09:05 PM. Reason: TO ADD NAME....

February 22, 2010	#2
Suze Tomatovillian™ Join Date: Jan 2006 Location: Texas Posts: 3,027	I think it's a steep price to pay for what is just basically corn gluten meal in a pretty package. Less expensive at the feed store. Having said that, corn gluten meal can be a fairly good pre-emergent if applied on the top layer of soil. Along with a shredded leaf mulch, I use it for my alliums and other root crops to keep weeds to a minimum. I also use it in the spring on my lawn as both a feed and a pre-emergent. Edit/add - CGM is not going to kill existing weeds, though.

February 24, 2010	#3
creister Tomatovillian™ Join Date: Feb 2006 Location: Abilene, TX zone 7 Posts: 1,478	Also, don't apply CGM in places you plan to plant from seed, unless you will apply at least 90 days before seeding, otherwise you may kill the stuff you seeded. I also use it on my lawn. I like to put down dry molasses a few weeks before the cgm to increase microbe activity.