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NE Iowa | The Dual and Atrazine are long of patent. The Callisto in the mix is the one that has come off patent in the last year. I've been told there is generic Callisto on the market but in limited quantities so the price hasn't come down much. A year from now though I was told the price should be low enough to be able to mix your own Lexar/Lumax with generic chemicals and save some money. | |
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