Grass Eaters termites are a little different in that they prefer desery landscapes versus eating your home. Gnathamitermes – tube building desert termites because they attack dead grass, weeds, and the outer portion of cactus and trees. Again remember they only eat dead cellulose or wood.
Often times we are consulted to termites on trees etc, generally you can leave them alone as they typically don’t damage the tree. On the other note, more termiticide on a property may prove valuable. Grass eaters can get inside and damage books and paintings but generally don’t do structural damage. So from a termite point of view its good to take action and get them away from your property and stuff.