Greater Peach Tree Borer

I noticed the first wave on GPTB today in my sticky wing trap.  Tomorrow I will spray the lower trunk of my peach trees with a solution of neem.  I will not spray the leaves as this pest is interested in boring into the trunk to lay its eggs.  I will also drench the base of the tree to try and reach the grub stage of the insect.  I will attach a link from Ohio State for more information about the Greater and Lesser Peach Tree Borer.  Note that the treatment that they recommend in the article is not an organic product.