Vendetta® Plus Cockroach Gel Bait includes an insect growth regulator, NyGuard® IGR, reducing German cockroach populations by reducing reproduction saving you time by reducing call backs. Vendetta® Plus is also formulated to be highly attractive and effective, even on the toughest hard-to-kill German cockroach populations including bait averse and non-averse German cockroaches. Giving you optimal control on the first try.