When we bought our property there were pine trees planted along both sides. As they got bigger we had every other one removed. 30 years later the remaining trees are enormous. Yesterday we noted that one of the biggest ones located between the driveway and the house has some kind of ugly cream colored globs on the trunk and many other spots on the trunk were weeping sap. Uh oh. We've got some kind of beetle borer or possibly Zimmerman moths, maybe both! That tree is going to have to come down and I don't know if any of the other trees have it too! This could end up being crazy expensive. I'm going to take pictures of it and take it to our local Extension Service and see what they can tell me. Wish us luck!