pre-emerg and compost tea??

[tweezerbeak]

if a pre-emergence [chemical] was used for crabgrass can a compost tea be applied or will the microbes be destroyed on the way into the soil????

[phasthound]

Go ahead & apply the tea. Put those critters to work.

[Barefoot James]

I have the same concerns. Let's here from the masters?? I will be spraying but how much damage with the pre do??

[Kiril]

It will depend on the chemical used. I would like to point out that if you are using a pre-emergent, you should probably let the chemical do its thing before you apply any CT.

[treegal1]

Atrazine , weed and feed, is PURE poison to the earth and dangerous to kids, hire a labor and use a weed weasel.
organic pgrs are not that un common in nature, rosemary,Spanish moss,CMG,most seed meals,some types of fungus,and a lack of water and sun are sure fire ways to keep the weeds gone. we have water Restrictions 1 day per week. try and get anything to sprout with one watering per week, it had better have a root system or it is a goner.
the dollar weed cant ever get off first base.tall grass "4 inches " will shade out there ground space and a seed will usually not germinate until it gets some sun/heat.are we talking about a weed that has a meristem on top that gets whacked of as soon as it gets past the 4 inch mark. or a seed reproducer that never get to make a seed again because its head was whacked off.what is the target and the need to kill it off. some of my more tolerant customers have allowed us to plant clover in there "SOD" and now say its just gorgeous. in the 1940s grass seed came with clover added to the grass seed. why did we stop doing this ?

[treegal1]

opps, crab grass, here try this. seen some home owner use it worked ok
http://www.agralawn.com/Crab_Control.htm

[flgtr95]

opps, crab grass, here try this. seen some home owner use it worked ok
http://www.agralawn.com/Crab_Control.htm

Works real well, just kills the grass too. :hammerhead:

[treegal1]

Ok that's not the rite thing, try Cinnamon oil, or re think the killing part. maybe you should just make the lawn strong so it will out compete the crab grass and weeds.

cane's rule

[DUSTYCEDAR]

with the turf in the north its not easy to thicken up some turf the crabgrass is comming
however in my lawn where i go overboard i dont use crabgrass control anymore i dont have to so it can be done its just lots of work at the start.

[tweezerbeak]

will the microbes get past the chemicals????

[DUSTYCEDAR]

will the microbes get past the chemicals????

good question

[treegal1]

yes some will, then add more.just try if you can to use the chems. less or spot treat

[ICT Bill]

Pre-M's and compost teas HMMMMMMM

Obviously it depends on what you are using but in general I would think that some of the microorganisms would consider the herbicide food and would reduce the effectiveness of any pre-M.

A lot of the beneficial microorganisms in compost tea are decomposers they love to eat a variety of things, I don't see why the herbicide would be any different. They use fungi to bioremediate heavy metals and all sorts of toxins, I would think it would do the same to pre M

So can you use them together, sure. Will the Pre-M work very well? probably not