Mould on Honeysuckle lower leaves

Mine honeysuckle is doing really well, and climbing the trellis on the fench, but it has this grey sort of speckled mould on the lower leaves?

Any ideas, what this is, and what I can do about it?

I was wondering if it was a ventilation problem?

Thanks. Nothing worry about then?

That looks more like mildew to me?

It's a fungal disease which is aggravated in warm humid conditions.

http://apps.rhs.org.uk/advicesearch/Profile.aspx?pid=253