drooling and clover?

When my mare was brought in last night she was drooling a lot. I heard somewhere that it can be caused by clover? And there is clover in the pasture. Should I be concerned, or is excessive drooling about all that happens when a horse eats clover?

I wouldn't be too worried, some feeds will produce excess saliva production in various horses. Lucerne sets my boy off, he slobbers everywhere when he eats it!

Clover slobbers are not something you should worry about. If you can move him to a different pasture you might want to try that to see if he does better there.

This is caused by a fungus that produces a toxic mold on the clover.