Quote:
Originally Posted by Cole_Robbie
What if the owner of the mine that processed the diatomaceous earth had weeds growing around his place? Or the various shipping and packaging companies who handled the product. If it is made to absorb oil spills, no one would notice the herbicide contamination. Maybe you just lost the DE lottery. You should definitely try some different media, mostly because it is such an easy experiment. The plants in cups look like the herbicide stress, but that last plant looks like it is growing at Chernobyl. Even my stressed plants took off when planted in the ground. One variety had almost zero production, but the others got less of the bad compost product and did ok. Maybe you have both problems.
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The Diatomite mine is out in the Nevada desert, I don't think anyone would be spraying herbicides there.
