Crop Disease Rate per Acre
per 100 gal. of water

ppm’s (copper)
per 100 gal.of water


Turnip Greens

Black Leaf Spot (Alternia) Black Rot (Xanthomonas) Downy Mildew

2.65 lb.2

19.2-25.6 oz.

7 days3

75-100 ppm

0.53 lb.1

Begin application after transplants are set in the field, or shortly after emergency of field seeded crops or when conditions favor disease development. Apply at 7 to 10 day intervals or as needed. Use the higher rates when conditions favor disease. NOTE: Reddening of older leaves may occur on broccoli and a flecking of wrapper leaves may occur on cabbage.

1Maximum per Application Rate (lbs Cu2+/A)
2Maximum Annual Rate (lbs Cu2+/A)
3Minimun Retreatment Rate (lbs Cu2+/A)
*Not Permitted in California
Permitted only in Washington State and Oregon**