Citrus tree or lemon tree borer are beetles whose larvae bore into living tree trunks and branches of citrus trees and many other garden trees and shrubs.
The citrus or lemon tree borer will damage not only citrus trees but trees of many types. The adults lay eggs in damaged or cut areas of the tree bark and when the eggs hatch they bore into the living wood damaging it. They will open holes to the outside world to get rid of their frass (waste products). Damage caused by lemon tree borer can eventually kill the tree.
To get rid of citrus tree borer follow these steps:
Prune of dead and very badly affected limbs of trees. After killing the borer larvae in their holes you can also protect from egg laying adults by filling the hole with Blu-Tack or similar inert filler.
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