They are bait. Those Terra's.
Do not put them inside the cage, but outside right next to the cage. They can smell that stuff from a good deal away, and they will come for it.
The Terra baits, help work to kill the colony. The spray will not do that, or anything much really. As long as the colony lives, they will keep coming back. Just keep the liquid baits, near the cage at all times. Crickets that are outside of the cage, might eat it but who cares they are outside. Ants that eat it may get inside, but it would take the cham eating alot of them to pose any real risk.