Piotr from Albrightsville, Pa writes
I had beautiful black Austrian pines. Last year they became brown rusted trees with new grows which slowly started changing (from tip) to rusty color. My research showed that they got infected with fungus. Those two bonide fungicides are recommended for this tree sickness.
Bonide Mancozeb Flowable with Zinc Concentrate is not labeled to be mixed with other products so we would not recommend doing so
Answer last updated on: 03/04/2020