A dangerous thistle

By: KXII-Staff Email
By: KXII-Staff Email

SHERMAN -- While heavy rains have helped wildflowers bloom all over the area biologists are warning against a type of thistle that could be harmful to livestock.

The plant is believed to have come from Europe and Asia probably brought to the US through non-native hay.

"If you have quite a few that might be labor intensive so you might want to consider a broad-leaf herbicide, make sure you read the label if you're going to do something like that or mowing repeatedly," said Dan Dinkler, an invasive plant specialist.

The bloom size is bigger than a native thistle and has small brackets underneath the bloom.


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  • by Bill Cheatham Location: Arkansas on May 23, 2009 at 08:14 AM
    I have a hayfield with a lot of thistles and we bailed them up with the hay. Will it be safe to feed this hay to my cows? or should I toss the hay to be safe? I know they wont eat it in the field, but I'm not sure if it'd hurt them rolled into the hay. Thanks in advance
  • by KXII Webmaster Location: Sherman on May 11, 2007 at 02:01 PM
    Our contact on this wasn't available. Please check http://www.invasive.org/ for more information. Thanks for commenting.
  • by myrt Location: grayson on May 11, 2007 at 10:59 AM
    would like to see more detailed follow up on this plant. like.. comparison images of texas native thistle and the offensive thistle forms. it would be nice to know other comparative features between the 2 also. HOW is this harmful? ? this is alocal ag issue. please follow up. help some cattle. Does it harm any thing other than cattle ? Is it chemically toxic? how dangerous in general and in specific on a scale of 1 to 10? If a small child ate a blossom would it be poisonous? or if the plant were to prickle a child? would it become naturalized to our local ecology? would it become a hazard to our local ecology or not? most native american fauna derived fron asia, the orient,europe and southern hemisphere regions. Mediteranian and european varieties were introduced to america by spanish and european exploration and colonization. maybe this plant would crossbreed and naturalize...?
  • by Steve Location: Denison on May 11, 2007 at 09:53 AM
    ...and the NAME of this type of thistle is...?
  • by Anonymous on May 11, 2007 at 08:16 AM
    DUH, IT HAS BEEN HERE FOR 10 YEARS
  • by jon ellis Location: denison on May 11, 2007 at 08:07 AM
    how is the thistle dangerous to the livestock? no information provide. i don't recommend using herbicides as it it will wash into nearby creeks yards and gardens endangering the environment.
  • by Brenda Location: Sherman on May 11, 2007 at 07:07 AM
    Why not a little more detailed description? Example.. Colored image of the native thistle, and the invader? Putting a little more effort into your reports couldn't hurt! Maybe even images that enlarge??
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