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Pesticides
DDT production halted in Russia.
Sixty pesticides banned by United States.
Question tests in chemical ban.
Blame pesticide use in death of Russian wildlife.
United States suspends herbicide use.
Partial, delayed ban on 2,4,5-T.
Ban use of 2,4,5--T weed killer after new studies.
Iowa House votes chemical review board.
Whose interest does United States Department of Agriculture serve?
United States balks at herbicide ban.
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