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weed killers

Posted by Amanda on January 14th, 2003 11:49 AM
In reply to Weed killers by Henry in MI on May 6th, 2001 12:50 AM [Go to top of thread]

I was just wondering. Can a weed killer distinguish between a weed and a flower? I am doing this for a science project and if they can distinguish between the two how is it done? Is there a certian chemical that does it?
By the way if this sounds really stupid I am soooooo sorry. But I am only 16.

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