I'd like to know if anyone has experienced this. This Deshojo was attacked by spider mites this summer so I progressively defoliated it and by the beginning of September it had a new canopy. Now suddenly at the beginning of October some leaves had this strange occurrence: a small part of the stem dries and shrinks, the leaf then bends down because it can't sustain its weight anymore and then fully dries. Most of the leaves are fine though. We didn't have freeze yet and the min temp has never gone below 6C (42F). Could it still be the effect of cold at night on young leaves or is it something else?