2018 Crop Protection Guide for Tree Fruits in Washington

Nutrient Sprays

Saturday, March 24, 2018

Nutrient: Bloom

See General Recommendations for guidelines on table use. Read all product labels carefully.



Except where noted, rates are amount per acre (amount per 100 gallons in dilute sprays) 
ammonium thiosulfate, liquid, 12%N, 25%S See label (--)  

Nitrogen and sulfur maintenance: Apply after sufficient blossom set. Can cause flower and fruitlet injury. Warm temperatures can increase injury. Follow manufacturer's label for rates. See text.


Tree Fruit Research & Extension Center, 1100 N Western Ave, Washington State University, Wenatchee WA 98801, 509-663-8181, Contact Us