Mums, Squirrels & Chipmunks

What part of Mums do squirrels and chipmunks eat?
We just planted three large mums, and the squirrels and chipmunks have already decimated them. They climb on top and borrow in, they uproot and dig up branches. And they always seem to be chewing on something -- I can't tell whether they are eating petals, flowers, buds leaves, stems or roots, but they are definitely partying.
We also planted a mum last year, but this is the first time that we had this problem.
- David
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.