Integrated Management of Bramble Diseases

Disease resistance varieties

Phytophthora Root Rot

Phytophthora root rot is most serious on red raspberries and some of the hybrids. The black raspberry varieties 'Cumberland' and 'Munger' are reported to be susceptible. The cultivars 'Bristol', 'Dundee' and 'Jewel' appear to be moderately to highly resistant. Among red raspberry cultivars, none are immune to the disease, but cultivars do differ greatly in their level of susceptibility. Among varieties grown in the Midwest and Northeast, 'Titan' and 'Hilton' are extremely susceptible, with 'Festival', 'Heritage', 'Reveille', and 'Taylor' moderately to highly susceptible. 'Newburgh' is somewhat resistant, and 'Ratham', 'Boyne', 'Killarney', and 'Nordic' are considered to be fairly resistant.

Verticillium Wilt

Red raspberries are more tolerant than black raspberries. 'Cuthbert' and 'Syracuse' appear to be resistant under field conditions. Black raspberries are highly susceptible. Blackberries are susceptible, but the disease is seldom a serious problem.

Orange Rust

Red raspberries are immune. Other brambles are susceptible. Of blackberries, 'Eldorado', 'Raven', 'Snyder', and 'Ebony King' are reported to be resistant. The Arkansas erect types (Arkansas Indian series) are reported to be resistant to orange rust.

Virus Diseases

Mosaic Virus

Blackberries are resistant. Black and purple raspberries are more severely affected than red raspberries. Of the purple or black raspberries, 'New Logan',E'Bristol',Eand 'Black Hawk' are tolerant and 'Cumberland' is susceptible. The red raspberries 'Milton', 'September', 'Canby', and 'Indian Summer' are resistant because the aphid vectors of the virus avoid them.

Leaf Curl Virus

Blackberries are symptomless. All raspberries are susceptible.

Tomato Ringspot Virus

Red raspberries and blackberries are susceptible.

Raspberry Streak

Black and purple raspberries are susceptible.