How can knowledge of a pest organisms tolerance limits be used in pest control?

Pest's have some areas that you should look at in determining a week spot to control a specific pest. Feeding,Life Cycle,Nestting,reproduction,foraging methods and even weather reactions. Some insects have a very high reproductive rate with a ready supply of water. Simply spraying them will only kill maybe-Maybe 10%, then they keep coming back. Some insects eat what they find as opposed to taking it back to the nest so the queens can process it and feed the rest of the population (imported fireants) so some baiting and spraying will not stop them, nest location is a must. The pesticides available OTC will kill bugs but if not used with the knowledge of the vulnerable areas will not control them long enough.