So far, emerald ash borer beetles have destroyed over 50 million trees, spanning 25 states.

Emerald ash borer beetles have been a major problem for years, and since they were introduced in Boulder, Colorado in 2013, experts have done everything they can to combat them. One way that we have tried to fight these beetles is by injecting insecticides into the trunks of infected trees. While this did help to cut down on the amount of infected trees we’ve seen, it hasn’t been enough. This year however, Boulder is taking their battle to the next level by introducing small Chinese wasps.

Why introduce Chinese wasps?

Emerald ash borer isn’t native to the United States. In fact, it is thought that the wood-boring beetles migrating all the way from Asia in wooded packaging material. That is why USDA scientists turned to China to find out what the beetle’s natural enemies are. In their work with Chinese foresters, 3 kinds of wasps were identified and imported to a federal lab. However, in order for the wasps to actually be effective against the emerald ash borer, they have to survive the winter, which is the current struggle.

Should you be concerned about emerald ash borer?

As long as you don’t live in or near Boulder, your trees are probably safe for the moment. Moving firewood has helped the emerald ash borer to migrate much farther and much faster than would have otherwise been possible, so be mindful and don’t move firewood. If you have any other questions or concerns about emerald ash borer or the health of your trees, contact our tree care experts in Grand Junction today!