Cockroaches eating bait

Cockroaches are eating bait, Brodifacoum, and living in a pile of wood nearby one of the bait stations.
These Cockroaches seem healthy.
Any experience with this issue, please?

Kia ora David. I have the same problem in the coastal back dunes here. They prefer the possum bait, fresh fruit, blue smooth. Nothing I can do except weekly check and refresh baits and lure.

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Yes - my problem too, which I canvassed a year or two back. I have Cockroaches living under the hood of my Auto T 220’s and have long suspected them of cleaning out the mayonnaise bait. In my tunnel traps, I have resorted to placing bottle caps laced with ant bait and Slug bait as these insects clean out my blue lure. The slugs concerned are the tiger variety and they slide over the traps without setting them off. No solution for the cockroaches yet.

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