Foal eating mare's tail

Does anybody have any good tips to keep my 3 week old filly from chewing on her mother's tail? We've had other fillies do this in years past, but never a colt. Weird!
Anyway, I'm keeping the tail braided and looking for some place to buy bitter apple chew stop, if it's still available. What else can I do? The mare has such a long beautiful tail, I hate to see it chewed off.

Bag the tail with a good nylon tail bag. Also spray the tail bag with either the bitter apple spray you mentioned, or I make my own mixture with cayenne. That keeps the baby from pulling the bag off, just check it often. Should to the trick!

I've never seen a preference for fillies or colts chewing tails, but on the farm I used to work, it sure seemed like minis were prone to it!

I've never heard of this. And as my foal is a colt going by what you've said he's never chewed on his momh tail or anyones elses for that matter lol how strange

When I first got my mare she had a really short mane because her recent foal had chewed it all off. (not sure if the foal was a colt or filly.)

But, two years ago the 2 going on 3 year old colt/gelding -stabled in the stall next door to my mares- chewed off HALF of her tail!! =( It was such a long and pretty tail! It is just now that it has finally gotten back to it original length.

The tail bag is a good idea. Also watch out for the mane!!