Cheminova Inc., Research Triangle Park, N.C., plans to introduce an azoxystrobin fungicide under the Equation brand in 2014, pending Environmental Protection Agency registration.

Azoxystrobin, the active ingredient in Syngenta's Abound and Quadris fungicides, is coming off patent in stages in various countries worldwide.

In China, for example, the technical patent for azoxystrobin expired in 2010, prompting Chinese manufactures to quickly ramp up production, according to a report from CCM International Ltd., a Chinese market research firm in Guangzhou, China.

Outside of the United States, Cheminova has manufactured and sold the active ingredient since 2011, according to a news release.