Won't they evolve around this too at some point? I feel like the only truly effective way to eradicate pests long-term will end up being swarms of little robot predators that wipe them out by force.
But then you are just introducing two new types of bugs..
inevitably, because evolution acts on the regular expression of genes.
The article covers that point near the end.
Near the end of the article it says there appears to be a very slow comeback with roaches in slightly increasing numbers that do not prefer the sweetness of the effective bait pesticide combo, apparently not developing an immunity.