LANSING, Mich. (AP) — Michigan onion producers have voted to continue a marketing program.

The referendum on the future of the Michigan Onion Promotion and Development Program was conducted by the state Department of Agriculture and Rural Development.

Results were announced Thursday. The state says nine valid ballots were cast and, of those, all the producers voted yes.

The Michigan Onion Promotion and Development Program is designed to improve the economic position of state onion producers by creating greater marketing opportunities for their products.

The program was established in 1977. By law, it must be resubmitted for grower approval every five years.