Orleans County New York
If you are just looking for pests that may attack raspberries, please refer to: http://www.fruit.cornell.edu/berrytool/raspberry/leavesstems/Raspchewed.htm
There are many insects that may visit your plants, but the vast majority of garden bugs are benign or beneficial (such as eating other insects.) For that reason, we don't recommend any action unless you find an insect that is actually causing an unacceptable level of damage to plants.
There are usually organic controls available, but identification of the pest is needed to know the appropriate course of action. If you can send a closeup digital photo of the insect and the damage to the plant, I will be happy to try to identify it for you.