I'm new to bonsai trees, and I was wondering if I could get some help. I recently purchased a Snow Rose, and I just noticed it has some white stuff on the main stem near the top of the tree. Its soft and fell off fairly easy when prodded, but there's still some on the bark. I was wondering if anyone knew what this is, and if its something I should really worry about. Thanks

Any other words of advice on serissas would be appreciated too
