We have been getting a large amount of rain lately, and my phals have developed a black, sooty-type mold on the blossoms. Could it be the rain? I also have a lizard that lives amongst them--could he be spreading it from plant to plant? Should I cut off the affected blossoms? Should I spray, and if so, what? I don't see any insects. Also, am I supposed to move them under an overhang when it pours?