PHOSPHO-jet is a systemic fungicide and plant health response elicitor for the suppression of various plant diseases for use in spring or fall. Effective against sudden oak death, anthracnose, phytophthora, black spot, scab, fire blight, root rot, bud rot, downy mildew, canker blight, and more.

PHOSPHO-jets active ingredient, Phosphorous, is not only well documented as a fungicide, but will also elicit a physical, chemical, and biological plant health response that triggers the trees own natural defense. Phosphorous as a nutrition will build strong cell walls, improving root, stem, and leaf growth.