"Mystery" disease. . .
Hello All,
That's probably not a mystery to a number in the r.g.o cohort. I have posted 2 photographs on a.b.p.o under the titles "Disease Picture" #1 & #2. This particular catt is now in very sad shape. At first I thought I was dealing with mealybugs and tried Neem Oil. No dice. Whatever this stuff is doesn't ever turn "fluffy and gray black" like mealys do. Photo #1 shows how this stuff starts along the base of the rhizome, looking a bit like mealys or snowy mold. The second shows the blackening process taking blace on one pseudobulb (lower left) and one that's gone (directly across, the pseudobulb that's on the very top of the three that are visible). Several of my plants have developed this over the summer, but this is the only one that it appears to be killing. The two others only have a white coating around the base of all the pseudobulbs with no blackening or plant death at all. Any help is most appreciated. Brian |
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