| Corn gluten meal (organic Preen)
I noticed a new Preen product for vegetable gardens that is supposed to be organic and non toxic. I wondered if you have any experience with corn gluten meal or the new Preen. Would it be a good substitute for regular Preen for those of us who prefer to use organic options when possible. I can't go without a pre-emergent weed preventer but if this works for veggies, could it work in flower gardens too? Also, Preen is usually the most expensive - can you buy generic corn gluten meal and is it as effective? Thanks!! | 
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