Tag Archives: fortress


OHP Fortress herbicide – Now registered in California!

OHP, Inc. is pleased to announce the California state registration of Fortress┬« Ornamental Herbicide. Fortress is now available for sale through authorized OHP distributors in California as well as in other states. Fortress is a unique combination of the active ingredients isoxaben and dithiopyr formulated on a user-friendly engineered granule that provides virtually no dust  Continue Reading »



OHP set to launch Fortress herbicide

OHP is pleased to announce we have received federal registration for Fortress┬« Ornamental Herbicide, a pre-emergent granular product that provides outstanding control of broadleaf and grassy weeds on woody plants, perennials, and grasses. Fortress will be available through authorized OHP distributors in early October. A unique combination of isoxaben and dithiopyr, Fortress is manufactured using  Continue Reading »