Maximum Control, Minimum Environmental Impact A new generation copper fungicide/bactericide designed for farmers who seek a copper that exhibits superior control, minimal copper load, excellent storage & mixing but without the staining.


Crop protection

CA Registration pending
OMRI (Organic) registration pending

Key Product Benefits:

  • BioRetain - Biologically available which causes retention. Only Mastercop has BioRetain
  • High copper bioavailability results in increased adhesion, cuticle penetration and rain fastness, which increases efficacy with minimal phytotoxicity
  • Instant release of copper ions for faster activity on pathogens present on the leaves
  • Less metallic copper needed, reduces soil loading, this fits well with EPA’s anticipated reduced metallic copper rates per acres
  • Smaller particle size allowing for better leaf coverage
  • Easy-to-handle (true liquid solution), no settling, no clogging, no nozzle wear
  • No blue residue, your crop is left clean
  • Mastercop provides a better-built option for copper use. It simplifies the use of copper while providing reliable bacterial/disease control, minus the hassle.


Fruits - Citrus

Fruits - Grapes

Fruits - Pome

Fruits - Stone

Grains and Cereals

Corn - Field

Corn - Sweet

Vegetables - Cole Crops

Vegetables - Fruiting


Sugar Beets



Key Targets

Gray Mold, Scab, Rusts, Leaf Spot, Brown Spot, Gray Leaf Mold, Brown Rot Blossom, Powdery Mildew, Blight, Stem and Pod Blight, Frogeye Leaf Spot, White Mold

Signal Word


Group Number


Package Sizes

2x2.5 gal

Active Ingredient

Copper Sulfate Pentahydrate