I HATE those JB's. We have them on our raspberries too. The water/dish soap works well for them. I spray them with the solution which seems to make them hang onto the leaf. Otherwise they often drop off as soon as they see (or feel) you coming. Then I push them into the bowl of soap water. I envy the people who can just squash them. I can't stand to do that
Just the thought of that "crunch" gives me the willies. Thank goodness I have my husband to help. Many of the raspberries are way taller than I am at 5' 4". He gets the ones that are out of my reach.
Is there anything that I could put into the soil this fall or next spring that will help reduce the problem next year. Because I know some of them are dropping down and most likely laying more eggs in the soil.