Due to many environmental aspects, tree pests tend to appear within trees and any kind of plants. For example, there are the defoliators like the gypsy moth or the western tent caterpillar, which are very destructive. Or another species like the wood borer like the emerald ash borer or bark beetles.
Any kind of plague can seriously damage your tree and stop it from growing healthy or living longer. This is why it is important for you to really know about all kinds of pests and the signs of diseases on trees. Keep in mind that the sooner you spot a sign, the greater chance you have to contact a professional service to stop it.