Greetings one and all

hope you had a good summer - here comes the rain (at last)

I bought 3 dog-wood plants from RHS-Wisley earlier and planted them out.
All displayed signs of rust within weeks. I've been cuttting out the
infected areas all year. One gave up some weeks back, another now looks
sick beyond redemption and the third is just about hanging on. Any clues as
to the cause? and more importanly a suggested treatment? or should I give
up and try again with new stock?

Nothing else in the bed is affected.

Thanks
--
William Tasso - http://williamtasso.com