Unfortunately there is not a chemical to use on bacterial leaf scorch for your blueberries at this time to specifically remove bacterial leaf scorch. However I can only give you a recommendation of controlling the vectors. Some states have experienced a mild drought which can also cause some similar symptoms of bacterial leaf scorch as well as other diseases. If you could provide me some more information on your diagnosis that would be beneficial. Controlling bacterial leaf scorch can be somewhat difficult, it may be in your best interest to try and alter the disease cycle caused by the vectors (insects). A few of the insecticides are registered for blueberries and are also active against leafhoppers. An application of neonicotinoid products (soil applied) such as imidacloprid or thiamethoxam should be used during the spring, for blueberries imidacloprid products include: Admire Pro, Admire 2F, Courage 2F, and Nuprid 2F to name a few. Another method can be also used in late spring by using foliar applied pyrethroids and organophosphates. Again it is imperative to determine if your plants indeed have bacterial leaf scorch. Setting up an appointment with your local extension agent (bring in some samples of the leaves, good and diseased) will help in the determination.

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