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Fremont County Weed & Pest Control District
450 North 2nd St., Rm 325
Lander WY 82520
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Roz@fcwp.org

WYO-BIO

Editor: Tim Collier
College of Agriculture, University of Wyoming

Published twice yearly, Wyo-Bio is intended to keep individuals concerned with weed control in Wyoming informed about the latest in biological control news. Free to interested parties, Wyo-Bio includes upcoming insect collection dates, the latest finds in biological control research, and other news as it relates to biological control in Wyoming. Wyo-Bio is a joint effort of the Wyoming Biological Control Steering Committee, the University of Wyoming Department of Renewable Resources and the Wyoming Cooperative Agricultural Pest Survey (CAP) program.

Availability of Weed Biological Control Insects in Wyoming

The Wyoming Weed and Pest Control Districts expect to have the following biological control agents available for redistribution in 2010. Feel free to contact the counties that have the agents that you need. Keep in mind that insect emergence and numbers depend on a number of factors and can be unpredictable.

Leafy Spurge Species & Dates Available County Contact
Leafy Spurge

Aphthona species

June - July

Ken Shackelton, Crook County, 283-2375, ccwp@rangeweb.net

Allen Mooney, Campbell County, 682-4369, alm76@ccg.co.campbell.wy.us

Nancy Pieropan, Fremont County, 332-1052, npieropan@wyoming.com

Spurgia esulae

May - June

Nancy Pieropan, Fremont County, 332-1052, npieropan@wyoming.com
Dalmation Toadflax Species & Dates Available County Contact
Dalmation Toadflax

Mecinus janthinus

May - June

Nancy Pieropan, Fremont County, 332-1052, npieropan@wyoming.com

Josh Shorb, Park County,
202-0133, pcwp@wir.net

Spotted Knapweed Species & Dates Available County Contact
Spotted Knapweed

Cyphocleonus achates

July

Rod Litzel, Johnson County,
684-5715 jcweedpest@ven.com

Agapeta zoegana

July

Rod Litzel, Johnson County,
684-5715 jcweedpest@ven.com
Diffuse Knapweed Species & Dates Available County Contact
Diffuse Knapweed

Larinus minutus

July

Rod Litzel, Johnson County,
684-5715 jcweedpest@ven.com

Canada Thistle Species & Dates Available County Contact
Canada Thistle

Urophora cardui

Sept. - Oct.

Nancy Pieropan, Fremont County, 332-1052, npieropan@wyoming.com

Ceutorhynchus litura

July - Aug.

Steve Brill, Goshen County,
532-3713 gocoweeds@embarqmail.com

Musk Thistle Species & Dates Available County Contact
Musk Thistle

Trichosirocalus horridus

June - July

Steve Brill, Goshen County,
532-3713 gocoweeds@embarqmail.com

Field Bindweed Species & Dates Available County Contact
Field Bindweed

Aceria malherbae

June - Aug.

Nancy Pieropan, Fremont County, 332-1052, npieropan@wyoming.com