Experiment 2 sprayed on July 27, 2006, to evaluate injury symptoms of herbicides applied late 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 8 days after application.
Click on the treatment name below to view pictures of the injury description and its severity.
|Injury Symptoms 8 Days After Treatment|
|Aatrex 4 L 0.25 qt/A||Leaf Yellowing||minor|
|Aatrex 4 L 0.5 qt/A||Leaf Yellowing||minor|
|2,4-D Amine 4L 0.01 pt/A||None|
|2,4-D Amine 4L 0.1 pt/A||None|
|Aim 2EC 0.25 oz/A||Leaf Burn||minor|
|Aim 2EC 0.5 oz/A||Leaf Burn||minor|
|Banvel 4EC 0.0074 pt/A||None|
|Callisto 4SC 0.75 oz/A||Leaf Yellowing||minor|
|Callisto 4SC 1.5 oz/A||Leaf Yellowing||major|
|Chateau 51WG 2 oz/A||Leaf Burn||minor|
|Chateau 51WG 3 oz/A||Leaf Burn||minor|
|Dual II Magnum 7.64EC 0.33 pt/A||Leaf Yellowing, Questionable||minor|
|Dual II Magnum 7.64EC 0.66 pt/A||Leaf Yellowing, Questionable||minor|
|Gallery 75DF 0.17 lb/A||Leaf Yellowing||minor|
|Gallery 75DF 0.33 lb/A||Leaf Yellowing||minor|
|Garlon 4EC 0.5 pt/A||Death||major|
|Karmex 80WP 1 lb/A||Leaf Yellowing||minor|
|Princep 4FL 1 qt/A||None|
|Prowl 3.3EC 1.2 qt/A||Leaf Yellowing||minor|
|Surflan 4FL 1 qt/A||None|
|Treflan 4EC 1 pt/A||Leaf Yellowing||minor|