Answer: Your friend may have suggested Hollytone, a slow acting granular fertilizer for acid loving plants. This would be fine to use on a healthy pine tree, you would apply it per the label directions. However, it would not help solve a pest or disease problem. There are a number of different problems that can beset pines and unfortunately it is very difficult to make a diagnosis long distance. I would suggest you consult with your Cornell cooperative extension to obtain a definite identification of the problem, and based on knowing that, decide how to proceed.
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