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Surround wp making yourself?  RSS feed

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I've been reading about surround wp and it seems like an effective deterrent for cucumber beetles and bean beetles which I have in abundance. The problem I have is the price. Has anyone attempted to make their own? It seems odd to me that the literature talks about the clay being centrifuged to get a very small particle size and this is the key to success. If a small particle is desired why start with kaolin clay which is renowned for it's large particle size? So has anyone tried ball clay which has a much smaller particle to begin with?

The diyer can get very fine particles at home doing the terra sigillata process of slaking the clay for a certain period of time. This allows the large particles to settle out and leaves the finest at the top. Of course this would waste a lot of the clay.

Well if anyone has done this please let me now how it worked out.

He's dead Jim. Grab his tricorder. I'll get his wallet and this tiny ad:
The $50 and Up Underground House Book by Mike Oehler - digital download
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