Herbicide in Lawn Thatch Killing Veggies?

dxjpriceMay 6, 2012

Maybe I shouldn't have done this, but I used thatch from my lawn to mulch my vegetable plants in containers this year. I applied weed & feed to that lawn last year, but thought that a whole season of weathering and growth would have decomposed the chemicals to the point that they were safe. Anyway, shortly after light mulching, my basil plants and all my greens started dying. Remove the thatch mulch ASAP? Probably something else? Thanks!

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jean001a(Portland OR 7b)

What product did you use? And how long was it supposed to last?

    Bookmark   May 6, 2012 at 11:22PM
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missingtheobvious(Blue Ridge 7a)

Here's an article about how long herbicides remain in grass clippings (scroll almost to the end for a simple chart):
http://extension.missouri.edu/p/G6959

And exactly when last year did you apply the stuff?

    Bookmark   May 6, 2012 at 11:26PM
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