This section is from "The Horticulturist, And Journal Of Rural Art And Rural Taste", by P. Barry, A. J. Downing, J. Jay Smith, Peter B. Mead, F. W. Woodward, Henry T. Williams. Also available from Amazon: Horticulturist and Journal of Rural Art and Rural Taste.
Keep them out. We believe it is the general testimony of all growers that the practice of crowing small fruits among standard trees, is detrimental, if not ruinous, to both. The Strawberry is a moisture-living plant, and absorbs all it can secure. If cultivators must grow trees in their small fruits' beds, let them see to it that all Strawberry vines are removed for a distance of three feet from each side of the trunk, then manure the ground near the tree freely every fall with stable manure, and in summer keep the ground mulched. This will secure plenty of moisture and fertilising material, not likely to be robbed by the rapacious roots of the Strawberries. As the trees grow older, the circle should be widened from three to four, five and six feet. When the tree comes into bearing, the small fruit should be removed entirely. Undoubtedly, the presence of the Strawberry beds between the trees will retard their growth somewhat. If the trees occupied the ground entirely by themselves, they would gain ten to twenty-five per cent. annually over any system of gardening which admits the cultivation of other crops upon the same ground and at the same time.