Shane from Houston, Texas writes
These have overwhelmed several of my trees in 6 months - a year, then they move to an adjacent tree and weaken it and finally overwhelmed it until all foliage turns brown and fall. Then the bark begins to separate and limbs start to fall in the months after that.
Pine bark beetles are hard to control as they get into the veins of the trees. If infected it’s best to take the tree down and chip it. Permethrin SFR 36.8% is labeled for bark beetles. The mixing ratio is 1 2/3 fl. oz per gallon of water. It is recommended that you spray the bark on the tree but not to the point of runoff. Permethrin will also help protect other trees from becoming infected.
Answer last updated on: 07/27/2018