The Emerald Ash Borer (EAB) has killed millions of ash trees, costing billions. Denver could face up to $1B in losses if all its 210,000 ash trees die, with removal costs, lost property value, and replacement expenses. Prevention and treatment are key.

The Tetrastichus planipennisi wasp, released in Boulder to combat emerald ash borer (EAB), targets EAB larvae by laying eggs that feed on them. With up to 100 eggs per host, it helps slow EAB spread. Other wasps may be introduced this summer for further control.

Radio ads about emerald ash borer (EAB) treatments are common, signaling both a growing threat to ash trees and a profit opportunity. In Boulder, EAB has been found, but the infestation hasn't spread far. Treating ash trees with insecticides is crucial for protection.