By Bigjohn
United Kingdom 
we have a kilmarnock willow about three years old in our front garden,in the last week we have found a orange fungas growing on the tree what is thi and how do we treat this
18 Jul, 2011
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Its rust - these trees are prone to this. Use an appropriate fungicidal spray, one which treats for rust, spray according to instructions now and keep a check next year for the first signs and spray immediately.
18 Jul, 2011