Crop Disease Rate Per Acre

ppm’s (copper)
per 100 gal.of water



Early Blight, Late Blight

25 lb.2

19.2-32 oz.

5 days3

75-125 ppm



  Apply 75 to 125 ppm at 7 to10 day intervals or as needed starting when plants are 2 to 6 inches high in locations where disease is light. Add up to 32 oz. per acre when disease is more severe.

1Maximum per Application Rate (lbs Cu2+/A)
Maximum Annual Rate (lbs Cu2+/A)
3Minimun Retreatment Rate (lbs Cu2+/A)
*Not Permitted in California
Permitted only in Washington State and Oregon**