Here's why:
* Low nutritional value: Grass, in general, provides less nutrition than other foods they typically eat.
* Tougher texture: Saint Augustine grass can be tougher than other grasses, making it less desirable for chipmunks.
* Focus on seeds and nuts: Chipmunks are more likely to seek out seeds and nuts that provide more energy and sustenance.
Therefore, while they might nibble on Saint Augustine grass occasionally, it's not a significant part of their diet. They are more likely to be looking for other food sources in your yard.