I have been finding some very tiny black "things" on my raspberries for the past several years. They are very time-consuming to remove when the berries are picked, but they are somewhat crunchy when left on the berries - plus I don't know what they are. Last fall I contacted someone who suggested I send a sample. Now that I have the sample, where should I send it? It is just a flat package with several specimens on Scotch Tape as you can see in the attached image. I would appreciate any help - either I can get rid of them or my plants will have to go. Thank you.