Articles written by Todd Breitenfeldt
Sorted by date Results 1 - 9 of 9
Dalmatian Toadflax Insects Available
The Whitehall Biological Control Project of Jefferson County will be collecting Dalmatian toadflax stem boring weevils (Mecinus janthiniformis) these next few weeks. These insects effect only the...
Busy Summer for Whitehall Project
We have much going on this summer. Here is a short summary of what we are doing. If you would like your land to be involved in any of this, please message us on our Whitehall Biological Weed Control Project Facebook page or call during normal...
The Whitehall Project: Purge Leafy Spurge
Leafy spurge is a perennial noxious weed that has sticky, milky white sap. The sap can cause a bad reaction if it gets in people's eyes or on their skin. Cows and much of our native wildlife will not regularly graze it, but sheep and goats can be...
The Whitehall Project: Dalmatian Toadflax, Yellow Toadflax and Their Hybrids
Dalmatian toadflax (Linaria dalmatica) and yellow toadflax (Linaria vulgaris) are two closely related state designated noxious weeds that were inadvertently brought over from Eurasia. Both damage farming, range lands and wildlands. They have yellow...
Whitehall Project Monitoring for Houndstongue Insect
As you probably know, the nasty invasive weed houndstongue (Cynoglossum officinale (Boraginaceae)) has small oval/flat seeds that stick to about everything. I have spent countless hours combing them out of my Brittanys fur after bird hunts (spray-on...
The Whitehall Project: Looking for Canada Thistle Fungus Release Sites in Jefferson County
The Whitehall Biological Weed Control Project is up and running this season, modified a bit of course for COVID safety. Our first order of business is looking for 8-10 Canada thistle fungus release sites. This will entail two visits to each site....
Busy year for the Whitheall Project
The Whitehall Biological Weed Control Project has had a busy year. We started June 1st and have collected/released the following numbers so far: Mecinus janthiniformis (Dalmatian toadflax stem weevil, collected near Missoula and Helena): 4,100 = 41 r...
Whitehall Project: Leafy Spurge Flea Beetles, where do they work?
There are 6 species of flea beetles approved for release on leafy spurge. They are: Aphthona abdominalis Aphthona cyparissiae Aphthona czwalinae Aphthona flava Aphthona lacertosa Aphthona nigrascutis They are a very small beetle with a back...
Whitehall Project Gears Up for Summer of 2019
After a decade of being a not-for-profit organization, we are back under the auspices of the Jefferson County Weed Board and Jefferson County. We are pleased to be working under the direction of...