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crabgrass' little secret

Discussion in 'Organic Lawn Care' started by Keegan, Jul 10, 2013.

  1. phasthound

    phasthound LawnSite Platinum Member
    Posts: 4,560

    Read it again. "the scientists said, noting that the chemicals also would have a direct toxic effect on other plants."

    Compost being contaminated is pure conjecture on your part. But that being said I hope there will be more studies following up on this.

    Dr. James Murphy of Rutgers is in China now attending http://www.turfsociety.com/itrc2013/ Maybe he will bring back some more info.
     
  2. Smallaxe

    Smallaxe LawnSite Fanatic
    Posts: 10,081

    The link you posted comes up to a cover page so I'll just take your word for it that I misread the notion that toxins affect the plant directly...
    Yes, it is conjecture on my part as to the effects that the allelopathic activity against microbes,,, hence the use of the word, 'may' at the critical part of the sentence... the use of the words 'curious and interesting would also indicate the wonder on my part...
    That is why I agree with you that it would be interesting to learn more about this particular example of the allelopathic phenomena...
    What I don't agree with is the tone of this statement:
    "Compost being contaminated is pure conjecture on your part. ..."
    Its like you carry the spirit of kiril in your heart... :)
     
  3. phasthound

    phasthound LawnSite Platinum Member
    Posts: 4,560

    ...................................
     
  4. Smallaxe

    Smallaxe LawnSite Fanatic
    Posts: 10,081

    "... "The chemical-specific changes in [the] soil microbial community generated a negative feedback on crop growth," the scientists said, noting that the chemicals also would have a direct toxic effect on other plants. "

    That is the phrase I mistook as a negative,,, and I'm glad it was straightened out in my mind...

    So as we speak the extant areas of CG are actively killing grass as much as Creeping Charlie is... :)
     

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