Tropicals & Tender Perennials: What temp do you bring Plumies indoors at night?, 0 by Clare_CA

Clare_CA wrote:
Joan, those leaves are probably trying to drop off so that the plumeria can go dormant for the winter. I definitely see mite damage in a few of the leaves, and I suspect you've got a mite infestation on all the leaves. I would remove all the leaves now and spray the tip and the stem with a miticide such as Neem Oil, Horticultural Oil, Murphy's Oil Soap, or Fungicide3. Don't worry about the leaves because they will grow back by spring. What kind of heat and light do you have in your greenhouse? It is probably best to let it go dormant in there which means very little water until spring. I wouldn't worry about the color of the tip of the stem. I think it will recover in the spring. As long as it is firm, it should be all right. It didn't get exposed to any frost or anything; right? Here's a picture of my seedlings last year in my portable greenhouse. The leaves got a bad case of aphids, rust, and mites so I pulled them all off and sprayed with a fungicide.