To avoid yield loss and plant death from disease, fresh, virus-free stock should always be used in establishing new plantings. The three most common diseases of raspberries are mosaic virus, anthracnose and verticillium wilt. To control virus, plant only virus-free stock and place red and black raspberries 300 feet apart if possible. Remove infected plants immediately. For control of verticillium wilt, avoid infected soils.
Insects are usually only a minor problem in raspberry culture.
The raspberry cane borer makes 2 rows of punctures about 6 inches below the tips of new canes causing the tips to wilt. Control involves removal and disposal of wilted tips below the girdled area. Sap beetles and picnic beetles can be a problem when fruit is allowed to become overripe. Harvest regularly and completely to minimize damage. Issued in furtherance of the acts of May 8 and June 30, 1914.