Foliar Phosphite is a formulated treatment for Phosphate and Potash deficiencies in a wide range of vegetable, permanent and ornamental crops and in turf. Applications of Foliar Phosphite can be beneficial to plant growth, including root development, flowering, and transplant establishment. This product may be applied through various application equipment and techniques, including air, ground and conventional sprayers. This product and other phosphorous acid products are intended to be used as a supplement to a well balanced fertilizer treatment program. It is not intended to be a substitute for sound soil fertilization and conventional cultural practices. Thorough coverage of foliage is necessary for best results when used as a foliar treatment.
Upon foliar application, the phosphite ions are taken up directly by the plant foliage and may undergo a degree of conversion to phosphate ions, or will be used directly by the plants as phosphite ions. Avoid foliar application under extremes of climate, e.g. rapid drying conditions, extremely slow drying conditions, frost, rain, or when frost or rain are anticipated. As a soil application to annual crops, a lesser response from the initial crop, with a corresponding superior response from succeeding crops, may be observed. In addition, placement close to seeds or root zones may be injurious to crops. The effect may be aggravated by a soil pH below 6.5. For additional information on product or programs or if you are unfamiliar with any of the application methods, contact your local Helena representative or authorized Helena dealer.
It is not recommended to use additional surfactants and/or adjuvants with this product.
DIRECTIONS FOR USE
Precaution: Foliar Phosphite is a highly concentrated material. Exercise precautions to prevent potential root or foliar injury (including burning), plant media pH changes, irrigation system damage or injector system damage. If applying Foliar Phosphite or in combination with other materials, a compatibility test is recommended to avoid potential incompatibilities. Prior to the addition of Foliar Phosphite to a spray mix, the user or application advisor must have experience with the combination or must have conducted a phytotoxicity trial. Do not mix with fixed copper or copper based fungicides if the pH of the spray solution is below 6 pH. Use sufficient water to ensure thorough coverage.
Foliar Phosphite may be applied through various application equipment including air, ground, and conventional sprayers at 10 to 500 gallons of water per acre. For each pint of Foliar Phosphite, use 6 1/4 gallons of water per 1,000 sq. ft. A 2% solution of Foliar Phosphite by spray volume is the maximum permissible rate for foliar applications.
Warm and cool season turf including commercial landscape, golf-course, lawn care and sod farms growing the following: Bent grass, Blue grass, Rye grass, Zoysia grass, Bermuda grass, Fescue grass, St. Augustine grass, Centipede grass, and Poa Annua.
Rate: Use 5 oz. - 10 oz. in a minimum of 1.75 - 2.00 gallons total spray volume per 1,000 sq. ft. every 14 - 21 days. Rate and frequency of application may vary due to active growth periods and grass cultivars.
Plant Health Program: Application of Foliar Phosphite containing potassium may aid in reducing summer stress due to increased potassium levels if soil medium is not sufficient to meet the need. Foliar Phosphite is recommended for use as a supplement to a well balanced fertilizer program only.