Growing Produce | Article Link | January 17, 2019 | Kathie Zipp

Regalia from Marrone Bio Innovations
Regalia biofungicide stimulates the plant’s innate ability to fight diseases. It is recommended for use in specialty crops, while Regalia Rx is targeted to broad-acre row crops.

Regalia can be used as a stand-alone product, or in rotation with or in combination with other fungicides to strengthen integrated pest management (IPM) programs and to help manage crop resistance.

“Organic growers do use biologicals alone or in concert with other products approved for use on organic crops,” says Pam Marrone, CEO and Founder of Marrone Bio Innovations. “But, 80% of biologicals are used by conventional growers as part of a rotation or in-the-tank mix with chemicals.”

Tim Johnson, Vice President of Field Development and Technical Services at Marrone Bio Innovations, says he recommends stimulating the plant early. He suggests applying before bloom, during early bloom, and then at full bloom. Begin applying Regalia prior to visible disease symptoms, or when disease is first noted, then repeat applications at seven- to 10-day intervals with shorter intervals under higher-pressure situations. Generally, apply 2 quarts of Regalia per acre in rotation with other fungicides, or at 1 quart per acre in a tank mix with another labeled fungicide. The product is rainfast in an hour.