QuestionsHow to growTrees and ShrubsPests and DiseasesSalix matsudana tortuosa 0 Vote Up Vote Down Jacinta Byrne asked 14 years ago This is a tree, Salix matsudana tortuosa, I’ve been told, that is suffering this year and wonder if you can help me to help it, thanks! could it be in too dry a spot? 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago Yes this is the twisted willow and, like may others, it is affected by a fungal disease called willow canker,w which waxes and wanes. There is no practical remedy, it is worst in a cool wet summer.Â