Humidity can be a highly variable local phenomenon in a well tended garden. If Cecile Brunner had lots of foliage that shaded and enshrouded Betty Boop restricting light and air circulation, and if the area was kept well watered and mulched, it is not impossible that the humidity level near the soil where BB lived was considerably higher than 11%. But I do have to wonder where the spores come from. Maybe from pine bark mulch imported from Alabama's paper pulp forests? I'll have to take that into consideration as I water and mulch my garden.
Maybe I need to think of fewer roses and more gravel mulch? Perhaps I just need to prune more carefully and to plant more dianthus and iris.
