[Taniwha]

In Berkeley ~25 years ago we had a severe frost, pipes popped, the eugenia hedge dies and so did the bermuda grass lawns too .. we pulled them and replaced them with traditional sod

So ... yes it can be killed ....

[DoubleCribble]

Did you dig the Bermuda grass out of the ground? Physically removing every blade, runner and root nodule it is the only way I know of to get rid of it.

[Hextinium]

All the Bermuda grass in our yard in Texas died after 3+ years of 90 days over 100 while the Saint Agustin keeps growing and growing.