Sycamore seeds have been found to be deadly poison for horses:
http://www.dailymail.co.uk/news/article-...lness.html
Eating them causes Equine Atypical Myopathy which results in death, usually from heart attack.
In my opinion, the best thing to do, if there is a Sycamore tree near/on a paddock area is to have it cut down, the ground thoroughly cleared, and in the meantime, horses kept away from any area where the seeds might fall.
Sycamore; pictures of leaf and seeds:
http://www.ycy63.dial.pipex.com/trees/sycamore.html
http://www.dailymail.co.uk/news/article-...lness.html
Eating them causes Equine Atypical Myopathy which results in death, usually from heart attack.
In my opinion, the best thing to do, if there is a Sycamore tree near/on a paddock area is to have it cut down, the ground thoroughly cleared, and in the meantime, horses kept away from any area where the seeds might fall.
Sycamore; pictures of leaf and seeds:
http://www.ycy63.dial.pipex.com/trees/sycamore.html