Holly bushes and azaleas

Question

My holly bush has black tar. Besides cutting off can I use a spray?

My azaleas are very thin and scarce. I use holly tone twice a year but this Spring they all look sick. What could be going on?

Thanks
Pat

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Answer 1

Here are some links to help you.
https://www.gardeningknowhow.com/ornamental/shrubs/holly/holly-problems-holly-leaf-spot-or-holly-tar-spot.htm
https://www.gardeningknowhow.com/ornamental/shrubs/azalea/azaleas-noteworthy-shrubs-for-any-garden.htm