Bonide INFUSE Systemic Disease Control is not labeled to work on Cercospora so we would not be able to recommend a use rate or say that it would work for that disease at all. Ferti-lome F-Stop Lawn and Garden Fungicide Concentrate is labeled to control cercospora and should be safe to tank mix with the copper fungicide you plan to use as long as the label does not state otherwise.
Apply to the point when spray begins to run off the leaves. Dilute 1-1/2 fl. oz. (3 tbs.) per 1 gal. of water. Treat once every 2 weeks throughout the season or until conditions for favorable disease development (warm, moist weather) are no longer present. Allow spray to dry completely before watering.
While the Bonide INFUSE Systemic Disease Control is labeled for some conifer diseases, it is not labeled for needle rust on blue spruce – only on Douglas Fir and Shasta Fir. We would instead recommend Clearys 3336F for various rusts. Be sure that you have the correct disease identification so that you can use the best treatment.
Yes, according to the product label, Bonide INFUSE Systemic Disease Control can be applied to rhododendrons for flower blight at ½ tablespoon (¼ fluid ounces) per gallon of water. Apply when there is 5% bloom and again when there is 70% bloom.
The product is not specifically labeled for river birch blight. We recommend that you consult with your local cooperative extension office Master Gardener for further recommendations and soil sample tests to determine the needs of the tree.
No, Bonide INFUSE Systemic Disease Control is not labeled for use on grapes. We would recommend you speaking to your local master gardener with the type of grapes you have. Here is the link:
http://www.csrees.usda.gov/Extension/
Please let us know if you have any addtional questions.
Bonide INFUSE Systemic Disease Control is not labeled to be used on succulents such as gasterias.
We recommend that you contact your local cooperative extension office or a horticulturist that specializes in cacit and succuletns for advice on which product would work best in your situation. If you cannot find the recommended product on our site, please let us know and we will be ahppy to see if we can get it for you.