Xylem Ltd. joins the fight against the Emerald Ash Borer!

1. Where did the Emerald Ash Borer come from?
The natural range of Agrilus Planipennis, or theEmerald Ash Borer, is eastern Russia, northern China, Japan, and Korea. Before June of 2002, it had never been found in North America.

2. How did they get here?
Of course we don't know for sure, but they most likely came in ash wood used for stabilizing cargo in ships or for packing or crating heavy consumer products.

4. What happens to infested ash trees?

The canopy of infested trees begins to thin above infested portions of the trunk and major branches because the borer destroys the water and nutrient conducting tissues under the bark. Heavily infested trees exhibit canopy die-back usually starting at the top of the tree. One-third to one-half of the branches may die in one year. Most of the canopy will be dead within 2 years of when symptoms are first observed. Sometimes ash trees push out sprouts from the trunk after the upper portions of the tree dies. Although difficult to see, the adult beetles leave a "D"-shaped exit hole in the bark, roughly 1/8 inch in diameter, until they emerge in June.