|
callus growth, but it protects wounds until callus covers them by keeping out the fungi of decay. Don't try to "make do" with lead or copper house paints. They peel, and may poison tender tissues. Shun creosote and roofing tars. Orange shellac, brushed over the bark and sapwood around the edges of a cut before covering the whole wound with tree paint, is desirable but not essential. The question of when to prune trees is moot even among treemen, but their differences are largely quibbling. In a general way all will accept the classic rule, "Prune when the tool is sharp," which has few exceptions. |
|||
|
