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Kim from York writes

Is Espoma Holly-Tone Plant Food 4-3-4 a fungicide that can be used to treat Douglas Fir Trees?

Answer:

Yes, Espoma Holly-Tone Plant Food 4-3-4 is labeled to be used on many tree varieties including Fir trees.  According to the Fact Sheet provided by the manufacturer for trees, Use 1 lb. of Holly-tone per inch of trunk diameter. Triple the quantity for diameters three inches and over. 

Answer last updated on: 10/13/2022

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