Resistance is the only practical means of control, but tolerant varieties are available.
Naturally occurring resistance genes are urgently needed as an alternative to transgenic cultivars which are considered environmentally risky and unacceptable to some segments of European society. The reader assumes all risks in using information posted or archived by ProMED-mail. ISID and its associated service providers shall not be held responsible for errors or omissions or held liable for any damages incurred as a result of use or reliance upon posted or archived material.