Note should be taken of the fact that Crown Gall occurs on a great variety of plants (see list on page 112). In certain states, for example New York, the trouble affects the raspberry more commonly than any other plant. It is also more destructive to the raspberry, in many cases, than to the apple, peach, grape or other fruits. While no variety appears immune, the disease is particularly common and important on the red varieties like the Cuthbert and London. It is said to cause considerable damage in the State of Washington; and records of it come from several other states indicating its wide geographical range in the United States. It was observed in Ohio as early as 1894.
A more detailed discussion of Crown Gall will be found under Apple, page 108.
Swingle, D. B. Fruit diseases in Montana. Crowngall of raspberry and blackberry. Montana Agr. Exp. Sta. Circ. 37: 326 - 327. 1914.
Selby, A. D. A brief handbook of the diseases of cultivated plants in Ohio. Raspberry crown gall. Ohio Agr. Exp. Sta. Bul. 214: 437 - 438. 1910.
Selby, A. D. Some diseases of orchard and garden fruits. II. Diseases of raspberries and blackberries. 5. Crown gall. Ohio Agri. Exp. Sta. Bul. 79: 108 - 112. 1897.