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RATS
Rodents are difficult to kill with poisons because their feeding habits reflect their place as scavengers. They will eat a small bit of something and wait, and if they don’t get sick, they continue. An effective rodenticide must be tasteless and odorless in lethal concentrations, and have a delayed effect.
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ANTS
When you provide a tempting treat that is actually poison (known as bait), you want to make sure it’s not too strong that it will kill the ant before it gets back to the colony (sometimes they are gone for days), and that it’s not too weak that it’s ineffective. You want poisoned food brought back to the nest for the rest of the colony to ingest.
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