Crop | Disease | Rate per Acre per 100 gal. of water |
ppm’s (copper) |
Instructions |
Almonds Apricot, Cherry, Plum, Prune |
Bacterial Blast (Pseudomonas), Bacterial Canker |
32-64 oz. |
200-250 ppm |
Make first application before fall rains and a second at late dormant. Use the higher rates when conditions favor disease. If needed, agricultural-type spray oil may be added. For Cherries: Where disease is severe, an additional application shortly after harvest may be required. NOTE: Foliar injury may occur from post-bloom sprays on almonds, especially on NePlus varieties. |
Blossom Brown Rot, |
51.2-64 oz. on Almond All Others 60-90 oz. |
125-250 ppm |
Apply during early bloom. Do not apply after full bloom or injury may occur. Use the higher rates when rainfall is heavy and disease pressure is high. |
|
Black Knot* |
32-64 oz. |
125-250 ppm |
Make application at bud swell up to early bloom for early disease suppression. Apply before full bloom. Use the higher rates when rainfall is heavy and disease pressure is high. |
|
Cherry Leaf Spot* 18.0 lb.2 |
38.4-64 oz. Dormant/ Late Dormant 7 days Bloom/Growing Season 5 days3 |
150-250 ppm 8.0 lb.1 |
Apply at petal fall as well as 1 to 2 times after petal fall. Use the lower rates where disease infection is light and use the higher rates for a dormant application or where disease infection is moderate to heavy. Do not apply to sweet cherry or the English Morello variety as severe injury will result. |
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**