Noxious weeds

Noxious Weed
5:00 am
Mon May 12, 2014

Beware Of The Giant Hogweed, The Invasive Plant That Can Cause Burns And Blisters

King County noxious weed expert Karen Peterson stands in front of a giant hogweed plant, holding a dead stalk.
Courtesy Sasha Shaw

If you find giant hogweed growing in your garden, don't try to remove it without wearing protective clothing and safety glasses. Otherwise, you could end up suffering for a long time, says Sasha Shaw, an educator with the King County Noxious Weed Control Program.

Shaw has seen pictures of people hurt by giant hogweed. She says it's the plant's sap that "makes your skin hypersensitive to sunlight and then the sunlight causes burns and blisters. It can cause reddish to purplish scarring for up to several years.” 

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Noxious Weeds
4:48 pm
Wed August 17, 2011

Toxic weed rears its flowered head In Northwest

Tansy ragwort, a member of the sunflower family native to Western Europe, is toxic to horses and cattle.
Courtesy of Washington State Noxious Weed Control Board

This year's prolonged wet weather is having the side effect of re-invigorating a noxious weed. The Northwest is seeing a comeback of tansy ragwort, a toxic species of sunflower that farmers thought they had vanquished years ago.

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