I spent a few evenings trying to find something about the plum EFN's too. There was only 1 picture I could find and that was on a gardening forum where someone was worried about the red lumps on his plum tree that the ants were eating.
http://www.helpfulgardener.com/phpBB...ic.php?t=36010]They looked to be in the same place as the cherry. Yates covered the broad bean, cherry laurel, cherry and then bracken, but no plum? All the reference I've found seem to group the cherry and the plum together, but only show pictures of the cherry tree.
Unfortunately we can't check the plum trees before the exam to see for ourselves.
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