Experiment 1 sprayed on June 23, 2006, to evaluate injury symptoms of herbicides applied mid season.
Herbicide treatments were applied directly on grape foliage.
Treatments were sprayed at 20 gpa with a 4-nozzle boom that sprays a 5.5 ft
band.
Injury ratings and photos were taken at 3, 7, 10, and 33 days after application.
1X rate = the low end of the recommended application range as specified
in each label respectively.
Click on the highlighted injury symptoms below to view pictures of the injury description and severity.
Herbicides Labeled on Grapes
| 3 DAT | 7 DAT | 10 DAT | 33 DAT | |||
| Rate | X Rate | 6/26/2006 | 6/30/2006 | 7/3/2006 | 7/26/2006 | |
| Aim 2EC | 0.01 fl.oz./A | 1/100 X | none | none | none | none |
| Aim 2EC | 0.1 fl.oz./A | 1/10 X | none | none | none | minor fruit cluster burn |
| Aim 2EC | 0.5 fl.oz./A | 1/2 X | minor spot burn | none | none | major fruit cluster burn |
| Chateau 51WG | 0.06 oz/A | 1/100 X | none | none | minor spot burn | minor injury |
| Chateau 51WG | 0.6 oz/A | 1/10 X | none | none | major fruit and cluster burn | see 3 oz/A rate |
| Chateau 51WG | 3 oz/A | 1/2 X | none | minor spot burn | major fruit cluster burn | major leaf and cluster burn |
| Karmex 80WP | 0.02 lb/A | 1/100 X | none | none | none | none |
| Karmex 80WP | 0.2 lb/A | 1/10 X | none | none | none | minor leaf yellowing |
| Karmex 80WP | 1 lb/A | 1/2 X | none | none | minor leaf burn | minor leaf yellowing and necrosis |
| Princep 4FL | 0.02 qt/A | 1/100 X | none | none | none | none |
| Princep 4FL | 0.2 qt/A | 1/10 X | none | none | none | none |
| Princep 4FL | 1 qt/A | 1/2 X | none | none | none | none |
| Surflan 4FL | 0.02 qt/A | 1/100 X | none | none | none | none |
| Surflan 4FL | 0.2 qt/A | 1/10 X | none | none | none | none |
| Surflan 4FL | 1 qt/A | 1/2 X | none | none | none | none |
| Prowl 3.3EC | 0.024 qt/A | 1/100 X | none | none | none | none |
| Prowl 3.3EC | 0.24 qt/A | 1/10 X | none | none | none | none |
| Prowl 3.3EC | 1.2 qt/A | 1/2 X | none | none | none | none |
| Treflan 4EC | 0.02 pt/A | 1/100 X | none | none | none | none |
| Treflan 4EC | 0.2 pt/A | 1/10 X | none | none | none | none |
| Treflan 4EC | 1 pt/A | 1/2 X | none | none | none | none |
| Gallery 75DF | 0.0066 lb/A | 1/100 X | none | none | none | none |
| Gallery 75DF | 0.066 lb/A | 1/10 X | none | none | minor leaf burn | minor leaf burn |
| Gallery 75DF | 0.33 lb/A | 1/2 X | none | none | none | minor leaf burn |
| Goal 2EC | 0.05 pt/A | 1/100 X | none | none | none | none |
| Goal 2EC | 0.5 pt/A | 1/10 X | none | none | none | major fruit cluster burn |
| Goal 2EC | 2.5 pt/A | 1/2 X | none | none | minor fruit cluster burn | major fruit cluster burn |