Our hard shell almond tree died rather suddenly. It was about 8 years old and more than 20' high. We live in a zone 8+ on the east coast of Vancouver Island. We had pruned the tree back in the fall. This spring it started to leaf out a bit and then suddenly died. Examing the trunk we found a multitude of very small holes. Some sort of bark beetle I suppose. My concern is that other trees may be affected by this bug. Could anyone tell me what type of insect could cause this and what other types of trees could be affected? We have pears, peaches, cherries, walnuts and others. Thanks for your help if you have any suggestions!