Can you brush on winter wash?
I have loads of fruit trees that are really young, most less than 4 years, so spraying seems it'll miss alot of of it. (Opposed to the fruit bushes where I can totally see why you'd spray.)
Certified GKH Gardening Expert
Absolutely! That is a good way to save on the product too! This article will offer more tips for fruit tree winter protection, and preparation: https://www.gardeningknowhow.com/edible/fruits/fegen/winterizing-fruit-trees.htm