Since my orchard is also 6 years old you got me wondering - so I went to
Google, clicked on 'Images' and typed in - Apple Borers
here is the url http://images.google.com/images?q=apple+borer&hl=en&lr=&ie=UTF-8&oe=ISO-8859-1&start=0&sa=N
there is one fair picture of an infected tree
I have window screen but no foam collars, how do you hold the collars in
place?
Yesterday was apple and pear grafting day, too much fun, Del
As a beginning apple grower in New England, with a small orchard of
>dwarf trees, what do I need to know about apple borers? I have put
>up window screen cylinders with foam collars to keep borers out, and
>I am willing to scout the trees regularly. However, I don't know
>how big a hole I should be looking for. Any one have any
>recommendations for how to deter and how to recognize borer damage
>in apples?