July 17, 2011 by wcobserver
The EAB, like many insects, has four distinct life stages: adult, egg, larva, and pupa. The larvae (the immature stage) feed on the inner bark of ash trees, disrupting the tree’s ability to transport water and nutrients. This causes the tree to shrivel and eventually die. After the tree is infested it starts to slowly decay from the top down. It takes about 3 years for the tree to actually die.
What does this horrible tree killing bug look like? The adult beetle is a bright emerald green with a violet abdomen. It is about ½ inch long. The larvae are a tannish color and remain under the bark until they mature.
The mysterious purple box is no longer a mystery. It is simply an EAB trap that the U.S. Department of Agriculture has put up to monitor for these destructive beetles, which have been found as close as Missouri. Please feel free to look up at the trap. Call our visitor center with questions at 479- 761-3325 or you can do more research on the EAB at this website: http://emeraldashborer.info/