The Emerald Ash Borer: A Threat to Ash Trees Worldwide
What is the Emerald Ash Borer?
The emerald ash borer (EAB) is an invasive wood-boring beetle native to northeastern Asia. It was first discovered in North America in 2002 and has since spread to 35 states and the Canadian province of Ontario.
How does the EAB Harm Ash Trees?
The EAB larvae feed on the inner bark of ash trees, disrupting the tree's ability to transport water and nutrients. This can cause the tree to decline and eventually die.
What are the Symptoms of EAB Infestation?
- D-shaped exit holes in the bark
- S-shaped galleries under the bark
- Epicormic sprouts (new shoots) growing from the base of the tree
- Thinning canopy
- Leaf yellowing and wilting
How can I Prevent EAB Infestation?
- Avoid transporting firewood
- Inspect firewood for signs of EAB
- Plant resistant ash tree species
- Contact your local forestry department if you suspect EAB infestation
- Chemical injection
- Tree removal
- Biological control
How can I Treat EAB Infestation?
There are several treatment options available for EAB infestation, including:
Conclusion
The emerald ash borer is a serious threat to ash trees worldwide. By understanding the symptoms of EAB infestation and taking steps to prevent and treat it, we can help protect our ash trees.
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