They are eating the leaves and emerging fruit . I don't use pesticides ,have tried molasses on the peaches with some success , but I only have one blackberry bush and at this rate there wont be any berries for me. HELP PLEASE!!
J.beetles eating my thornless blackberries.
http://davesgarden.com/forums/t/435271/ here is a link that may be helpful. And spinosad is said to work (organic) good luck. beetles and mites seem to be the two hardests things to control.