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Toadflax

We recommend the stem mining weevil Mecinus janthiniformis/janthinus as the foundation for a toadflax control program (cited as “the most effective single control agent available”). We believe a combination of all available species is the best approach, but the flower insects have been widely distributed and are well established. Call us to be sure you don’t already have them.

 

Toadflax stem boring weevil

Mecinus janthiniformis : This insect is causing dramatic declines in Dalmatian toadflax density, often very quickly by biocontrol standards. Experts are saying that this is one of the most effective biological control agents available for any weed—a must-have for any Dalmatian toadflax program. $100 per release

$100 per release

Toadflax stem boring weevil

Mecinus janthinus : This insect is the species for yellow toadflax. We collect from separate insectaries for this agent. Clients have indicated establishment in lower, as well as higher elevation toadflax infestations. We have limited numbers of this insect available. Call to discuss your specific sites.

$100 per release

Toadflax flower beetle

Brachypterolus pulicarius: Larvae and adults feed on the young tissue and reproductive plant parts, reducing seed production. The beetle works on both Dalmatian and yellow, but is already widely distributed. Check to be sure you don’t already have this one.

$75 per release

Toadflax flower weevil

Gymnetron antirrhini: This insect causes dramatic decline of yellow toadflax seed production (80-90%). The weevil works on both Dalmatian and yellow, but is already widely distributed. Check to be sure you don’t already have this one.

$75 per release

Catalog and Price List

Integrated Weed Control

4027 Bridger Canyon Road
Bozeman, MT 59715-8433

Contact Information

Toll Free: 1- 888-319-1632
FAX: 1-406-587-1989
Email Us

Noxious Weeds

Canada Thistle

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Leafy Spurge

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Purple Loosestrife

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St. Johnswort

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Common Mullein

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