Bronze Birch Borer Forecast

Bronze birch borer frequently kills birch trees by boring into the wood.

Bronze Birch Borer Current Day Forecast

Bronze Birch Borer Six-Day Forecast

WHAT ARE PHENO FORECASTS?

Pheno Forecast maps predict key life cycle stages in invasive and pest species, to improve management efficacy.  For insect pest species, Pheno Forecasts are based on published growing degree day (GDD) thresholds for key points in species life cycles. These key points typically represent life cycle stages when management actions are most effective. These maps are updated daily and available 6 days in the future.

Help us improve these maps! Our Pheno Forecast map products are still in development, and we seek input on their performance in your area. Give your feedback at the bottom of the page.

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Sign up to be notified by email approximately two weeks and again six days ahead of key growing degree day thresholds for species of interest at your location

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Credits: David G. Nielsen, The Ohio State University via Bugwood.org
A bronze birch borer larva digs a tunnel in wood.

SPECIES BACKGROUND

Bronze birch borer (Agrilus anxius) is wood-boring beetle that is native to North America. Periodic outbreaks of this borer have led to widespread mortality of birch (Betula spp.) trees; beech (Fagus spp.) trees can also be affected. 

Credits: John A. Weidhass, Virginia Polytechnic Institute and State University via Bugwood.org
A bronze birch borer, is shown on the surface of a leaf.

ADULT BEETLE FORECAST

We forecast adult emergence based on the accumulation of growing degree days. One approach for controlling bronze birch borer is to treat with pesticide when adults begin to emerge, with the goal of controlling newly hatched larvae before they burrow into the bark and are no longer susceptible to control. For specific information on preferred treatment options in your region, we recommend contacting your local extension agent. Additional treatment resources are available through Missouri Botanical Garden. 

EXPLORE THIS FORECAST

Learn more about this forecast using our visualization tool!

 EXPLORE FORECAST

Phenophase

GDD threshold

Base temp

Start date

GDD method

Model origin

Source

Adult emergence

450oF

50oF

Jan 1

Double sine

 OH, MI

Cornell University Cooperative Extension

Herms (2004)  

Michigan State University IPM

More information on map development and re-use policy.

TRACK THIS SPECIES WITH NATURE'S NOTEBOOK

 

You can help verify this forecast by checking trees for this species and reporting your findings in Nature’s Notebook via the Pest Patrol campaign. Your observations will help scientists better understand when this species is active and susceptible to treatment.

 

Learn more about Pest Patrol

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