February 21, 2017 – (Kalamazoo, Michigan) – OHP, Inc. a leading marketer of crop protection solutions for the production ornamentals market, announces a new partnership with Vestaron Corp. of Kalamazoo, MI. Under the terms of the agreement effective immediately, OHP will market Spear® O, a greenhouse bioinsecticide that controls thrips, whiteflies, and spider mites, pests Continue Reading »