The Minnesota Department of Agriculture created this CGI video to show the lifecycle of the Emerald Ash Borer to educate the public. It was posted on YouTube, May 12, 2010.
What is Emerald Ash Borer?
The Emerald Ash Borer, an invasive insect native to Asia, has killed tens of millions of ash trees in urban and rural forested settings in the United States. First discovered in 2002 in Michigan, it has now spread across 13 states.
Emerald Ash Borer in Minnesota
Map of Emerald Ash Borer findings and quarantine areas
It was found in St. Paul on May 14, 2009 and it kills ash trees in great numbers. Minnesota has about 870 million ash trees at risk, one of the largest concentrations of ash of any state. The Minnesota Department of Agriculture and the USDA have setup quarantines near the twin cities and Houston County. You can learn more about EAB on the UMN Extension website or the Minnesota DNR website.
Emerald Ash Borer Tree Injection Treatment
Arborjet provides the highest level of protection against Emerald Ash Borer. Arborjet equipment injects pesticide directly inside the tree where the EAB larvae are feeding so there is no need for spraying or soil drenching of pesticide into the ground.
2 Comments
At what point is it too late to treat ash trees for emerald ash borer infestation?
Over the last 3-years I have lost approximately a dozen ash trees in my 1-acre woods. There are 3 of 4 ash trees remaining in my yard. I cut the worst one down a couple of weeks ago. 2 others are in very poor condition with very few leaves and very mottled bark. The 4th tree was in good condition at the beginning of the summer, but now its top has lost its leaves and other leaves are beginning to turn yellow well before the autumn season. I would like to do whatever I can to help the 4th tree survive because it is in an important location for shade.
Please let me know if the Arborjet treatment will work this late in the game. Thank you.
Dave Brink
Liberty Center, OH
David,
Thank you for your comment and interest in Arborjet tree injection!
Generally, a tree is not a good candidate for injection if it has lost more than 50% of its canopy. I would assess this yourself prior to making a decision about treatment. Also, there are two treatment windows in a given year for EAB. Injection in the spring will prevent the adult beetles from feeding and laying eggs in the tree. Injecting in the summer will kill the larval stage of EAB feeding underneathe the bark. Arborjet injections yield 2 year control from EAB. David, I sent a list of our service providers to the e-mail address provided in the comment. Thanks for your comment!
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[...] EAB Life Cycle [...]
[...] Emerald Ash Borer (EAB) is an exotic, invasive insect native to Asia, and was first detected in Michigan sometime in 2002. It is believed EAB was imported to the states from Asia via wood packing material. EAB larvae burrow under an ash tree’s bark creating galleries which disrupt the flow of water and nutrients essential to the tree’s health. If left untreated, EAB infestations ultimately lead to the tree’s death. Adults are dark green, one-half inch in length while one-eighth inch wide and will only fly from April until September. EAB Life Cycle Video [...]