Sick Plumeria

Question: what disease plagues my plumeria?

hello, I would like some help because I brought a plumeria from the Arab emirates to which I am particularly fond because it reminds me of happy moments. eight years have passed since that day, it has never made flowers, it has grown a lot but my big problem is that at the apex of many "branches" a black crust is formed that makes the new leaf jets dry. can you help me? Thanks marcy

Ill plumeria: Answer: le plumeria in winter

Dear Marcy,
the plumeria is a small tree of South American origin, widespread in most of the tropical areas of the globe, given the beauty of its large flowers which are reminiscent of those of oleander, but with a delicious fragrance; in Italy plumeries are grown in coastal areas characterized by mild winters, as they do not like temperatures below 5 ° C. I therefore believe that you are also cultivating the plumeria correctly, as otherwise it would not have survived so long. The problem manifested by your plant is quite typical of plumeries; it is called anthracnose, and consists of small mushrooms that settle on the apexes of the branches, where the vegetation is still green and soft, and cause its deterioration and death, with consequent blackening of the shoots, which subsequently dry up. This type of mushroom lives well in the heat, and therefore even your plumeria will show more problems during the hot season; but the origin is to be found in the winter period; in fact this disease attacks in particular the plumeries that live in a very humid environment during the cold season. In fact, it often happens to see plumeria specimens with covered apexes, during the winter, with non-woven material, to prevent them from being exposed to the cold due to the typical humidity of winter. I don't know where you grow your little tree, but know that the plumeries in no way like the excesses of winter humidity; those who grow these potted plants, when the temperatures drop, move them to the greenhouse or home, so that they are far from the elements, and above all from the rain. When the plant is attacked by the fungus, you can do nothing but remove the vegetative tips, reaching up to healthy wood, and cleaning the shear after each cut with alcohol; cover the cuts with pruning mastic, and try to keep your plumeria in a dry place during the winter, or the problem will tend to recur every year.