Its all in a name Hi, I think you must have an A. p. 'Tamukeyama' that has been mislabled! It happens all the time becuase we don't all have...
Verticillium We have many customers who report sucess using Phyton 27, a copper/sufate hydrate. It is available in the US from Source Botanical...
Good Morning, I really do not think that the maple in the photograph is Aka shigatatsu sawa, which has larger, much more deeply divided leaves...