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Pesticides
Be careful with pesticides, by Margaret Dana.
Poison in Iowa fish.
Nishnabotna's catfish is unsafe, lawmakes told.
Pesticide regulations that regulate.
P. Hart, chairmen of a Senate environmental group, plans stiffer pesticide
Urge new approah to herbicide contol.
President Nixon's regulatory plan upsets pesticide ind.
Wants pesticides out of food stores.
Urges ban on all persistent pesticides.
See danger in ban on DDT-- gypsy moth invasion in East cited.
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