Hibiscus: Plum Crazy hibiscus malaise, 0 by bgfl

bgfl wrote:
I have been nursing a young "Plum Crazy" hibiscus for two years with measured success (it isn't dead yet). Please look at the latest symptoms: mottled yellow leaves, from spider mites presumably, and now also presenting with very dark, wilted edges on some leaves which are also curling in a bit. Could this be a chemical burn from horticultural oils that I have been using for the spider mites, or an unrelated problem? Has anyone had success with the temperamental "Plum Crazy" hybrid? Any tips?

Thanks,
BG, Orlando