Emerald ash borer (EAB) is an invasive insect from Asia that was first introduced into the United States in 2002. The Emerald ash borer (EAB) has been found in 64 of Wisconsin’s 72 counties. Since its discovery, EAB has caused the death and decline of tens of millions of ash trees. Today, the U.S. Department of Agriculture (USDA) is using ash trees against the pest to help preserve and protect the tree species. They are asking Wisconsin landowners for their help.
Wisconsin landowners have donated live, infested ash trees to USDA’s EAB biological control program. The staff will then use the wood to rear EAB’s natural enemies and release them in Wisconsin and 28 other EAB-infested States. The biocontrol staff will need more ash trees to continue producing and releasing these stingless wasps that attack and kill EAB and are hoping more Wisconsin residents will consider donating their ash trees this year.
Biological control (Biocontrol) helps to reduce pest populations by using natural enemies such as parasitoids (stingless wasps), predators, pathogens, antagonists (to control plant diseases), or competitors. It is a practical option to suppress pest populations and an environmentally sound method of pest control.
“Our facility in Brighton, Michigan, is one of a kind,” said EAB biocontrol manager Ben Slager. “We rear almost a million wasps each year and provide them at no cost to our State cooperators for release. We’ve harvested EAB-infested ash in Michigan, Ohio, and last year in Wisconsin. Over the years we have had to travel farther to find the material we need.”