I have a question concerning a moldy growth that appeared on my u. bisquamata flower stalks a few days ago. The base of the stems seem a little soft, and are darker green than in the healthy state. Most of the stem is covered by a white fuzz, as shown below. The flowers continue to bloom several days later, though with seemingly smaller flowers. The plants are growing outdoors in a moist soil substrate and low humidity.
Any ideas as to what exactly this is, what it is caused by and how I can aleviate this condition? I don't think it's mildew, because of the low humidity. I doubts slime mold, since the flower stalks (at least the tops thereof) seem to be surviving. Any ideas?
thanks in advance,