Weevils Destroy Giant Salvinia
in an East Texas Lake

A weevil that feeds exclusively on Salvinia molesta (giant salvinia) has successfully destroyed about 150 acres of the invasive plant on B.A. Steinhagen Lake in East Texas.

Giant salvinia has invaded 17 lakes and other bodies of water in the southeastern U.S. (Dr. Allen Knutson, AgriLife Extension).  TPWD’s Aquatic Habitat Enhancement Program has released more than 112,000 adult weevils into Steinhagen Lake to combat the invasive species.

An effort at Caddo Lake in Northeast Texas aims for similar results. Research is being conducted at a weevil-rearing facility at the U.S. Fish and Wildlife Service’s Caddo Lake National Wildlife Refuge through the Center for Invasive Species Eradication. - Read More.


Invasive Plant Prevention:
Guide to Best Management Practices

"An ounce of prevention is worth a pound of cure", and spread prevention is a first step toward working on weed management.

The California Invasive Plant Council has published two prevention BMP manuals, one for land managers and one for transportation and utility managers
These manuals present a set of voluntary guidelines and ready-to-use checklists to help those managing wildlands to prevent the accidental spread of terrestrial invasive plants.

All books, brochures, and the CD-ROM may be ordered online by printing the order form or by calling 510-843-3902. 
There are print copies available of the land manager manual at $10 each to cover printing costs.

Brown Fir Longhorned Beetle Found in Christmas Decorations!

One of the Wildflower Center Sentinel Pest Network's "Dirty Dozen" species was found in a Christmas decoration shipment to British Columbia, Canada. A
 B.C. Liquor Distribution Branch will have to destroy $182,000 worth of Christmas decorations imported from China because the shipment was infested with Callidiellum villosulum (brown fir longhorned beetle).

This beetle has also been intercepted in the U.S.  Last year in Baltimore, the U.S. Customs and Border Protection Service found an infested craft shipment from China. The service said these insects “pose a serious threat to our nations forests and to our timber industries, particularly during their voracious larval period.”
- Read More.

BrownFirLHB 2

Pest Watch: Banded Elm Bark Beetle Texas Sightings in 2012

Scolytus schevyrewi (banded elm bark beetle) is native to northern China, Central Asia, and Russia.  It was first discovered in the U.S. in 2003 in Colorado and Utah.  Since then, the beetle has been detected in 21 states, and as of 2012 that includes Texas.  

Currently in the U.S., the beetle has attacked four different species of elms: American, English, Russian, and Rock Elm. In the species home range, it attacks elms, willows, woody plants of the pea family, and potentially species of the rose family.

Severe infestations have killed drought-stressed trees in Colorado, New Mexico and Wyoming.  An additional threat is that it may transport a fungal pathogen causing Ophiostoma novo-ulmi (Dutch elm disease).
More News

Illinois ISAM's Hunt for "Invasive Species Slogans" - Mascot Edition
This new series of posts focuses on invasive species mascots that you can find on publications, bumper stickers, and t-shirts.  Check out the submitted entries or enter your own!

2013 National Invasive Species Awards
During National Invasive Species Awareness Week 2013 awards will be presented to invasive species programs in the categories of leadership, volunteerism, education/outreach, and lifetime achievement.  Program nominations must be received by January 21st, and you can submit your nomination here.

North American Invasive Plant Short Course (NAIPSC) 2013
There will be at least six webinars, which will begin in January and continue through April or May 2013.  These webinars lead up the NAIPSC Field Course, which will be June 25-27, 2013 in North Platte, NE. Check out the NAIPSC website for details.

Invasive Plant Flagging Tape

Bright fluorescent pink tape - INVASIVE PLANT – printed vinyl roll flagging is now available through Forestry Suppliers (800) 847-5368.  The stock number is 57948.

If you would like your invasive species event or news listed in the next iWire, please send the details to iwire@texasinvasives.org.



Invaders of Texas Training
Gets CPE Hours for Texas Teachers

The Lady Bird Johnson Wildflower Center is an approved provider and attending an Invaders of Texas workshop provides Continuing Professional Education (CPE) hours for teachers.  

Providers must be approved and registered by the State Board for Educator Certification (SBEC) and Texas Education Agency. This registration ensures that activities offered for CPE credit support the professional growth of educators in the knowledge and skills necessary to improve student achievement in Texas public schools. 


Calling All Pest Detectives!

The Invaders of Texas program will be conducting 10 invasive pest identification workshops in 2013. The workshops will train citizen scientists to identify and report invasive pests of regulatory concern, such as Emerald Ash Borer. Satellites will have two options: a half-day workshop focusing on invasive pests, or a full-day workshop consisting of a half-day on invasive pests and the other half being a refresher course for the Invaders of Texas program.

We are now taking requests for these new workshops. Please contact Jessica Strickland for more information and to schedule your workshop!


Citizen Science Workshops

Sentinel Pest Network & Invasive Species Workshops
These workshops supplement the Invaders of Texas program by training citizen scientists to identify and report invasive pests of regulatory concern like Emerald Ash Borer and the Cactus Moth while they are out looking for invasive plants. The morning session will cover non-native, invasive pests, and the afternoon session will be a refresher course on non-native, invasive plants that occur in your area. 

We have funding for 10 workshops in 2013, so schedule your workshop, today!

Workshop Schedule:

Saturday March 2nd, 2013

Location: John Bunker Sands Wetland Center (Seagoville, TX)
Contact: Teresa Moss

For more information or to request a workshop, please visit our Workshop Page.


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