LOS ANGELES (CBSLA.com) — Two Los Angeles City Councilmen Friday announced the introduction of a motion aimed at protecting homes, schools, community gardens and public spaces from contamination caused by plants and other genetically modified organisms (GMOs).

The motion calls for a “GMO-Free Zone” across the city’s more than 502 square miles that would ban the growth, sale, and distribution of genetically engineered seeds and plants.

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City Councilmen Paul Koretz and Mitch O’Farrell introduced the measure at a news conference at City Hall.

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“A growing number of problems are being traced to GMOs, including the worldwide disappearance of honeybees (through “colony collapse disorder”); concerns over “seed drift” (for example the recent finding of GMO-pollinated wheat growing in an Oregon farmer’s field); the evolution of “superbug” insects which are growing immune to
the pesticides engineered within GMO crops; and European studies which raise the question of how GMOs impact human health,” according to a statement released by the Councilmembers.

Last October, Koretz and the rest of the City Council voted unanimously to pass a resolution supporting Proposition 37, which requires genetically engineered foods to be properly labeled and prohibits such foods from being marketed as “natural” in California.

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Fifty-two percent of residents in Los Angeles County voted in favor of Prop. 37 last year, according to the motion.