Monsanto has contributed $4.6 million to fight Initiative 522, the measure on this fall’s ballot that would require labeling of genetically engineered foods sold at retail.
The contribution, reported Monday to the state’s Public Disclosure Commission, was made last week and brings the opposition’s war chest to $7.8 million.
Monsanto, a major seller of seeds for genetically engineered crops, was the largest donor fighting a similar labeling measure in California last year.
The anti-labeling campaign in California raised $44 million and defeated the labeling proposition, whose supporters had raised $9 million.
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