Re: Reasoning with customers Research from the past has proven that several fungi actually thrive better under wound covering paint then they would have without it. Covering the wound is actually something that the tree does for itself to a certain point. That's one of the reason why you shouldn't prune in wintertime. In the past, when we didn't know any better, we used such a product as well. We used dendrosan to cover it. Now we have a spray for that and we do sterilize pruning equipment between customers. Especially important when pruning fruit baring trees. |