blossom protect A highly effective plant protection product used for the prevention of fire blight in pome fruit (apple, pear and quince), and walnut blight in walnuts. It contains microorganisms which block the fire blight pathogen, Erwinia amylovora, from colonizing the blossoms and nectaries through natural competition for space and nutrients.

Registered for sale in California, Colorado, Connecticut, Idaho, Maine, Michigan, Montana, New Hampshire, New York, Oregon, Pennsylvania, Vermont, Virginia, Washington, and Wisconsin.