Let us hope that this winter with the low temperatures has reduced over-wintering pest problems to a minimum, so plants should have a clean start t a new growing season.  Last winter had a very quick sharp cold spell which did not eradicate enough pests.  With luck, this winter will have been more destructive to pests.  Many will be still hiding beneath bark and even debris.  Why not use Growing Success ‘Winter Wash’ on your fruit trees, that will help get rid of any lurking nasties.