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Vassar College has set up emerald ash borer traps in ash trees within the Vassar Farm and Ecological Preserve, May through September 2010

In collaboration with the DEC, Vassar College has set up emerald ash borer traps in ash trees along the forest edge within the Vassar Farm & Ecological Preserve. The traps are to collect the beetles to be tested to see if the invasive species is affecting the trees on the Preserve.

Emerald ash borer: Agrilus planipennis

What is that purple thing up in the tree?

These are traps to collect beetles. They will not attract emerald ash borer from other areas, but will indicate whether it has invaded the Preserve. Ash trees make up a large portion of our native tree species here on the Preserve, and emerald ash borer monitoring is important for conservation of the native biodiversity.

What is emerald ash borer?

Emerald ash borer is an invasive species of beetle – its native range includes eastern Russia, northern China, Japan, and Korea. Emerald ash borer will kill North American ash species, including green, white, black, and blue ash. Emerald ash borer was discovered in the United States in 2002 in Michigan.

What does emerald ash borer look like?

Adults are 3/8 – 5/8 inch long, metallic green wing covers, with a coppery red/purple abdomen.

What are the signs of an infestation?

Tree canopy dieback, yellowing of leaves, and distinct D-shaped exit holes in outer tree bark left by the adult

When might you find emerald ash borer?

Late May through early September

What is the impact of emerald ash borer?

EAB larvae feed under the bark of ash trees, which cuts off the flow of water and nutrients. Trees infested with EAB will most likely die within 2-4 years. Since EAB was discovered in Michigan in 2002, 50 million ash trees have been destroyed

How can we prevent the spread of emerald ash borer?

Do not move firewood! Emerald ash borer is not a strong flier, and most long distance movement of this beetle has been a result of people transporting ash firewood or nursery stock.