Toxic Plants and Trees

Hi there new to the forum and looking for help! I have a ton of wild parsnip in my pasture, neighbour told me, horses where in it but not eating it, we bush hogged it all down but now lying around the pasture ...can I let the horses out with it on the ground or mixed in a little with other weeds etc from the bush hog???

Help pls

Apparently this is toxic also....I actually gave some to my horses and goats because my father-in-law (grrrr) said that they love it. Then I looked it up and it's toxic! Gave them some a couple hrs ago....hoping they will be ok!!!!

What about pine needles. I live in the forest and even though I clean the pasture regularly the pine trees keep droping needles and the horses eat them. My mare is not feeling well today and has no history of colic but wouldn't eat her hay this morning. Not like her. I walked her for an hour she pooped 3 times in 3 hours and I was told that even though they poop they could still colic. I'm wondering if the pine needles which are acidic could have caused her to feel sick.They also eat oak leaves and chew on the madrone tree bark which I think is ok. This colic thing is so unpredictable.Does anyone know about the pine needles.
Ann

Japanese Yew and Water Hemlock are some pretty important because a horse can die from consuming a mouthful. They cause cardiac glycoside poisoning which causes death due to heart failure.

I have a blog on natural horse health. I did a post on some of the more common poisonous plants/ trees a while back--it includes pictures.

Acorns poisonous?

Kaylee would dead and buried these many years if they were!! She eats them by the gallon in autumn and all they to is make her fatter!

Perhaps she is more of a pig than a pony, Haflingers have that reputation!

Tannic acid levels in oaks vary by species and if you have oaks with low levels and horses have access to adequate forage of hay or grass and water at all times it may not be an issue. They are fairly high in protein and fat. Oak leaves and branches of any variety especially new growth can cause problems. Drought years can be an issue as tannic acid levels are concentrated.

I think it also depends from horse to horse. Like humans, some seem to be more delicate than others (hell, I knew a horse allergic to hay). We spent two winters in arid areas of Spain where Kaylee ate plenty of the small local acorns (from spiny evergreen oaks), also with no ill effect. These tasted exacly like dried sweet chestnuts (I tried them). Here we have tall deciduous oaks with large acorns, which are also fine (although bitter).
Just sharing my experience, here. But in Germany they say that Hafligers can eat anything, and grow fat from it.

I have heard that pine tree bark has many dangers to a horse like giving it colic making it choke and hole lot of other things

Avacado trees,leaves and the fruit is lethal to horses.