This section is from the book "The Gardener's Monthly And Horticulturist V27", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
There seems to be some mixture of ideas in the minds of some who have given thought to this subject. A well known fruit grower of great experience recently spoke vehemently against the idea that fungus in the earth was the cause of the peach yellows. Later in the convention some one asked how long it would be safe for one to leave the ground in which a yellowed peach stood before planting another, and the speaker replied, " about one hundred years."This would seem to imply that in spite of his argument against root fungus, he thought the trouble was in the ground somewhere. If not root fungus, one can conceive of no reason why a new peach tree should not be planted at once where the other one grew. Mr. Gully, of South Haven, Mich., writes to Purdy's Fruit Recorder that there are plenty of trees from one to six years old near there growing in spots where trees with the yellows had been taken out. Indeed, the digging up of earth and exposing it to the atmosphere is often sufficient to destroy the fungus. Some years ago Mr. Alfred Cope, of Germantown, had a white pine tree badly infected with the yellows. It was a fine tree near the entrance gate, and which he was reluctant to lose.
He took out with fork and spade as much of the earth as possible, as if he were going to transplant the tree, and then filled in the whole with fresh earth, and the result was that the tree wholly recovered. In the cases of pines and spruces the diseased plants are found to have the growing fibres covered with the silky or cobwebby spawn of the fungus, just as they are in the early stages of the peach tree yellows.
 
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