Bayer Advanced Disease Control for Roses, Flowers & Shrubs is only labeled to be applied to the foliage. It will be absorbed through the leaves.
We would not recommend applying old Bayer Advanced Disease Control for Roses, Flowers & Shrubs if has not been stored properly and it has changed color or consistency etc. This product is a white/beige product and should be stored in a cool, dry place. Sheds and garages can experience fluctuation in temperature.
We are not why the manufacturer changed the formulation though it is typically done through EPA recommendations. We do not believe the old formulation is still available unless a store has some old stock.
Bayer Advanced Disease Control for Roses, Flowers & Shrubs Concentrate provides 3-way action by killing existing fungi, forming a protective barrier on the outside of the plant and by being absorbed into the plant to keep on protecting regardless of weather conditions.
For Roses, "Apply every 7-14 days during the growing season, starting when leaves first appear." For best results, apply at the shorter interval specified under "Directions for Use" on the product label when disease or conditions favorable to disease (generally cloudy, wet and warm weather) are present.
Bayer Advanced Disease Control for Roses, Flowers & Shrubs is not labeled for application to any edible vegetation. Eagle would be a better option.
Bayer Advanced Disease Control for Roses, Flowers & Shrubs can be used on Valley Oaks for the labeled diseases.
No, Bayer Advanced Disease Control for Roses, Flowers and Shrubs Concentrate is not labeled for leaf gall.
Sanitation is the best control. Pull off and destroy all infected flowers. Rake up and remove all leaves, flowers and plant debris that have fallen to the ground. Replace the mulch under the plant. This fungus survives in the soil. Spores of the fungus can be wind-borne for up to a mile. Therefore, control is best achieved when controls are applied to other camellia plants in the community.
Fungicide sprays recommended for the flowers include mancozeb. Application of soil drenches, such as mancozeb or captan, around the plant every 2 weeks from late December through January may be helpful in reducing the intensity of disease. See Table 1 for examples of products. Apply all chemicals according to directions on the label.
You would apply Bayer Advanced Disease Control for Roses, Flowers & Shrubs Concentrate at least 3 times per year, 7-14 days apart, beginning with Spring bud break.