Skip to main content


Maximum control with little to no risk for phytotoxicity. OMRI Listed® copper fungicide/bactericide.

Mastercop Fungicide Jug

Crop protection 

  • BioRetain™ - Allows penetration into plant cuticle for improved performance per pound of AI. 
  • High copper bioavailability results in increased adhesion, cuticle penetration and rainfastness, which increases efficacy with minimal phytotoxicity. 
  • Instant release of copper ions for faster activity on pathogens present on the leaves. 
  • Less metallic copper applied, reducing soil loading, this fits well with EPA’s reduced metallic copper rates per acre. 
  • Easy-to-handle true liquid solution no settling, no clogging, no nozzle wear. 
  • No blue residue on your crop.