Symptoms of poisoning from fireweed include gradual weight loss, jaundice, fluid in the lungs, blindness, sudden death without any other indications, aimless wandering, muscular coordination, twitching of the head muscles, abdominal straining, rectal prolapse, and irritability. …

Chemical control The best time to treat fireweed with herbicide is late autumn. This controls the peak numbers of seedlings and young plants. By late winter herbicide treatments are much less effective. Used correctly, selective herbicides don’t kill grasses but do slow their growth.

Spray healthy, actively growing fireweed thoroughly with a non-selective herbicide, such as glyphosate, so that the leaves are covered completely, but not to the point of runoff. Apply the herbicide on a calm day when no rain is anticipated for at least 24 hours.

As you have found, fireweed is resistant to both 2,4-D and to glyphosate (Roundup). Both of these products normally do a good job controlling broadleaf plants, but not this one. The best control is to use the specific pasture herbicides Remedy, PastureGard, or Milestone.

The leaves and stems of this winter weed are covered with small hairs containing irritants that cause contact dermatitis and a strong burning sensation that can last for hours to days, depending on how much you touch. Usually fireweed goes unnoticed because it really isn’t too special to look at.

Fireweed (Urtica chamaedryoides) – The One That Feels Like You Put Your Hand In Flames! Fireweed is particularly troublesome because it possesses small, but visual on close inspection, stinging stiff hairs that easily embed in skin. Once exposed to the toxin, severe irritation can occur for several hours.

But it is not just another pretty flower, all parts of the fireweed are edible. The young leaves can be eaten raw in salads or sautéed in a stir fry or with other greens. The flowers and buds make a beautiful garnish and can be used to make fireweed jelly.

The seedbank of fireweed is not long-lived. Most seeds lose viability after 18-24 months. The seed hairs (plume) respond to humidity. As humidity increases, the plume diameter decreases, resulting in a reduced loft.

Fireweed, (Urtica chamaedryoides), is a close relative of stinging nettle, and possesses the same stinging hairs that make its cousin such a nuisance. Cattle tend to avoid grazing on fireweed, but horses will occasionally attempt to eat it.

Broadleaf weed killers containing 2,4-D will control them, but you’re going to need to spray with a relatively fine droplet size, and you’ll want to add one drop of liquid dish-washing detergent per gallon of spray to hold the herbicide on the foliage. It will take a couple of weeks to see its effect.

Nettle stings can be itchy and you may feel a stinging or burning sensation. This will usually settle down within a few minutes or a few days and you can often treat them yourself. They may cause a raised area nettle rash on the skin.

But, there is a remedy that will help you get through this. Wash the area with a scrubby sponge and then you need to make a baking soda paste which is baking soda and a little bit of water, apply to the affected area and wrap a wet towel around it.

Read on to discover some plants that could burn, blister, or otherwise irritate you!

• Manchineel. manchineel. Manchineel (Hippomane mancinella).
• Poison Ivy. Poison ivy (Toxicodendron radicans)
• Stinging nettle. stinging nettle.
• Hogweed. giant hogweed.
• Tread-softly. tread-softly.
• Gympie gympie. gympie-gympie.
• Pain bush. pain bush.