Contact your local county Extension office through our County Office List.

Close Icon
   
CSU Extension - A division of the Office of Engagement. Providing trusted, practical education to help you solve problems, develop skills and build a better future.
Established 1908

Search Results for: "emerald ash borer"

Emerald Ash Borer Detected in Broomfield

First ever confirmation of tree pest in Colorado outside related quarantine BROOMFIELD, Colo. – August 20, 2019 – National and state experts have confirmed the presence of emerald ash borer (EAB) – an invasive, highly destructive tree pest – in the City and County of Broomfield, northwest of Denver. This detection represents the first confirmation […]

Take a Tour 
Post Image

Emerald Ash Borer Resources

Colorado Department of Agriculture website Emerald Ash Borer (EAB) was found in Boulder, CO, in September 2013. As a non-native insect, EAB lacks predators to keep it in check. EAB only attacks ash trees in the genus Fraxinus (so mountain ash are not susceptible). Visit the Colorado Department of Agriculture website for the most up […]

Take a Tour 
Post Image

Recognizing Wood Boring Insects of Ash Trees in Colorado – 5.620

Print this fact sheet by W.S. Cranshaw* (1/19) Quick Facts… Being able to recognize the wood boring insects found in a tree is essential when making informed decisions on the need for control. In most of Colorado, the most important wood borer found in ash trees is the lilac/ash borer.  It makes an irregularly round […]

Take a Tour 

Extension Update – December 14, 2018

On behalf of PLT: 4-H Youth Development – Jean Glowacki Cropping Systems – Ron Meyer Energy – Cary Weiner Environmental Horticulture – Alison O’Connor Family And Financial Stability (FAFS) – Gisele Jefferson Food Systems – Becca Jablonski Livestock & Range – Frank Garry Natural Resources – Marvin Reynolds NFSH – Jessica Clifford 4-H Youth Development […]

Take a Tour 

Extension Update – July 10, 2018

On behalf of PLT: Next PLT Meeting and Training – Jan Carroll 4-H – Jean Glowacki Community Development – Greg Felsen Cropping Systems – Ron Meyer Energy – Cary Weiner Environmental Horticulture – Alison O’Connor Family and Financial Stability – Gisele Jefferson Food Systems – Becca Jablonski Livestock & Range – Retta Bruegger Natural Resources […]

Take a Tour 

Extension Update – November 15, 2017

On behalf of PLT: Additional CSU Holiday – Friday, December 22 Grants & Funding opportunities UPDATED September DAC minutes available Update on Extension Mission, Vision & Values – Cary Weiner & Ashley Stokes Program Leadership Team (PLT) – Bill Nobles and Jan Carroll Additional CSU Holiday – Friday, December 22 Governor Hickenlooper has declared Friday, […]

Take a Tour 
Post Image

Extension Update – January 12, 2017

On behalf of PLT: Professional Development Funds – RDs & Judy Barth Planning & Reporting Unit Updates Community Development – Greg Felsen CPRS – Jan Carroll Cropping Systems – Ron Meyer Energy – Cary Weiner Environmental Horticulture – Alison O’Connor Family & Financial Stability – Laurel Kubin Food Systems – Becca Jablonski Livestock & Range […]

Take a Tour 
Post Image

Shade Tree Borers – 5.530

Print this fact sheet by W.S. Cranshaw* (1/19) Quick Facts… Wood borers are insects that develop underneath the bark of trees and shrubs. Certain beetles and moths are the most common borers. Insecticides can best control most shade tree borers if they are applied when adult insects are laying eggs on tree trunks. Most wood […]

Take a Tour 
Post Image

Lilac/Ash Borer: A Common Wood Borer of Colorado’s Street Trees – 5.614

Print this fact sheet by W. Cranshaw* (5/14) Quick Facts… Figure 1. Lilac/ash borer larvae tunneling exposed from under the bark. Photograph by David Leatherman. Figure 2. Tunneling produced in the base of a recently transplanted “Autumn Purple” white ash by the lilac/ash borer. Figure 3. Irregularly round exit holes produced when adult lilac/ash borer […]

Take a Tour 
Post Image

Large Deciduous Trees – 7.419

Print this fact sheet by J.E. Klett and E. Hammond* (10/17) Quick Facts… Trees provide shade, beauty and protection from harsh winter winds. Trees help moderate temperature extremes and offset poor air quality. Plant trees on the basis of space available, soil conditions, proximity to irrigation lines and water requirements. Plant trees prone to storm […]

Take a Tour 

CSU Extension is closely monitoring and following COVID-19 (Coronavirus) guidance as outlined by public health experts.