With most insecticides, such as Spectracide Triazicide Once & Done Insect Killer Concentrate, it is safe for pets to be back into the treated area after it has completely dried.
Per the product label for
There is no
According to the product label
The best time to apply Spectracide Triazicide Once & Done Insect Killer Concentrate
Per the product label for Spectracide Triazicide Once & Done Insect Killer Concentrate, when treating for surface insects you would want to delay watering for 24 hours after application.