North American Fruit Explorers mailing list at ibiblio

[dwoodard@becon.org]

Discusses the development of scab strains able to overcome scab resistance
supplied by the Vf gene from Malus floribunda.
See
<http://www.ecofruit.net/2006/ecofruit_12th_19-1.pdf>

There are interesting hints also about the importance of cultural methods
and the use of urea sprays to encourage the decomposition of leaves
carrying scab. I wonder if compost tea would also be effective.

Doug Woodard
St. Catharines, Ontario