What can be used on the bottom of a fence to keep dogs away?

Dsp22397813
by Dsp22397813
Our dog and the neighbors dog love to bark at each other and dig and scratch on the wooden fence trying to get at each other. Results in some digging and scratching of the lower part of the fence. What can be used to discourage this? I've tried stapling some weed block fabric to try to keep them from seeing each other but that didn't hold up very well.

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