Cracks in the bark of apple trees
Dear Mr Kötter, today my neighbour opposite showed me cracks in the bark of his apple trees. I told him I had experienced this where I lived before, and that it was due to the contrast between frosty nights and warm daytime sunshine. I advised him to paint a thick whitewash on the trunks and to lean planks against the trunks on sunny days. Did I give him good advice? Maybe you could write a couple of lines about this so I can pass the information on to my neighbour. As a professional, I imagine that you probably, or rather, certainly, have some extra advice to give me. I look forward to hearing from you.