Is Advion Cockroach Gel Bait from Syngenta Worth It?

How Advion gel bait actually works through a colony

Here's the part worth understanding before you squeeze the plunger. Advion's gel carries a carboxylate-based active ingredient in a food-like matrix that roaches find more attractive than whatever crumbs are already on your counter. A roach that feeds on a pea-sized dot doesn't drop dead where it stands, it wanders back toward the nest first, and that delay is the whole design. Other roaches feed on its droppings and, eventually, its corpse, picking up a dose of the same active ingredient secondhand. One placement can work its way through roaches that never touched the tube directly, which is the difference between a bait and a spray: a spray kills what it hits, a bait kills what it hits and then what that one talks to. The gel format matters too, since it stays put in a bead at the crack or hinge where roaches actually travel instead of drifting the way a fogger or spray residue does, and the same tube is labeled for indoor and outdoor placement, including food handling areas, so a kitchen and an exterior wall can be treated with the one product instead of two. None of that means anything happens on day one. The bait has to be found, eaten, and carried back before the population actually starts thinning, which is patience dressed up as chemistry.