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Old January 8, 2017   #42
Join Date: May 2013
Location: Carmel, IN
Posts: 74

Originally Posted by goodwin View Post
Hi Fred,

We had a wet 2015 season and this line is definitely resistant to late blight. There was resistance to early blight as well, but not across the board. I don't know about septoria, which we haven't seen here yet.
I'm not sure about the genetics, either. However, I think it is not the result of a major gene as we see in some hybrid varieties, but a more general resistance. There were heirlooms with resistance to earlier races, but not against what is showing up now. Matt's Wild is an exception, as you may know.

Every habrochaites rootstock that I tried seemed to be completely resistant to Septoria, so it may be a common property of all S. habrochaites lines. I think there is a good chance your interspecies hybrid will also be resistant.

Last edited by FredB; January 10, 2017 at 08:53 AM. Reason: Fix typo
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