Powder mildew on phlox and bee balm black spot on roses Japanese beetles on most anything distorted leaves on roses discolored leaves/rot on geranium rust on hollyhock holes in hosta flowers that seem to not bloom completely (I address this with fertilizers now) That should be more specific. You can tell that I usually try to get a "one kind fits all". I use Funginol and Sevin as my primary treatments. I have also tried the systemic products for roses. I have Orthene, Malathion, and Benomyl in the cabinet. I can never remember which to use on which plant problems. I need to make a list on my cabinet door or write with permanent marker on the bottle. I would like to get away from these chemicals and go with more organic treatments.