[Offwego]

Hi All

my this years apple tree has what looks like a mildew on the underside of the leaves- what is causing this and how do I get rid of it?

[Offwego]

Sprayed the tree with a bug gun a week ago and it looks far better today

[New shoot]

If a pesticide has worked it must be something insect related rather than mildew.  If you coud get a photo on here someone might be able to tell you for sure 

[snow white]

I have it.  Looks like little black fly.  Have sprayed so will wait and see.