Cultural Control of: houndstongue (Cynoglossum officinale L.)
Sheep: Not an affective control because of risk of liver damage (the cells stop reproducing) which takes affect mostly in cattle and horses. Also, risks of being a carrier of the seed. (2)
Goats: Not an affective control because of risk of liver damage (the cells stop reproducing) which takes affect mostly in cattle and horses. Also, risks of being a carrier of the seed. (2)
Tilling (Plowing): Will not withstand regular cultivation; digging, pulling and cutting and these are effective if done frequently. If done after flowering, plants need to be removed from site and disposed of to prevent seed spread. (3)
Mowing: Mowing the stems before seed-set kills 60% of the plants and the rest produce few seeds, but this is more practical in paddocks (small pen or field) than rangeland. (3)
Hand Pulling: Will not withstand regular cultivation; digging, pulling and cutting and these are effective if done frequently. If done after flowering, plants need to be removed from site and disposed of to prevent seed spread. (3)
Controlled Burning: Will only rely help if there is only a small space tha has this weed.
Seeding/Reseeding: No information available.
Watering: Keeping irrigation and plenty of healthy grasses in your fields may help prevent or decrease infestation. (1)
Fertilizing: No information available.
Grazing Methods: Keeping irrigation and plenty of healthy grasses in your fields may help prevent or decrease infestation. (1) No further information available.
Other helpful links to research houndstongue
Click here to go to the Colorado State site
Click here to go to Altavista.com
Click here to go to mtwow.org
Click here to check the weed ID
Click here to check Houndstongue at mtwow.org
Click here to see a great picture of the killer houndstongue
Click here to go to the Yellowstone Weed Department
Literature Cited
1) Breitenfeldt, Todd. Weed ID of houndstongue. [Online] Available http://mtwow.org/houndstongue.html
2) Rutledge, Chris R. and Dr. Terry McLendon. An Assessment of Exotic Plant Species of Rocky Mountain National Park. Department of Rangeland Ecosystem Science, Colorado State University. 97pp.
3) Wyoming Weed & Pest Council in cooperation with Sandoz Crop Protection Corp. [Online] Available http://www.co.yellowstone.mt.us/publicworks/weed/houndstongue.htm
4) Washington State University (online webpage)
http://www.whitman.wsu.edu/weeds/houndstongue.html
5) Nebraska Weed Control Assoiation watchlist
http://www.neweed.org/watchlist.htm
6) Agricultural department of North Dakota
http://www.agdepartment.com/Newsletters/NoxWeedSummer2004.pdf
By: Trent Peitsch 1/11/02. Updated By: Erin Amerman 2/23/09.
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