Quality Baiting
While insecticide baits have established themselves as the preferred means of cockroach control, their effectiveness depends on nearly every individual consuming them; especially given the lack of evidence of reliable field control through the eating of poisoned individuals or faeces.
Most modern baits are highly palatable, maintain their palatability over an extended period and require very low levels of consumption to be lethal.
Even so, the restricted foraging of most cockroaches means the effectiveness of baits can be seriously compromised by poor placement.
To be effective baits must be placed as close as possible to every cockroach harbourage in an infested area.
Like sticky traps, baits need to be well-placed if they are to intercept foraging cockroaches; baits located in the open away from walls or equipment essentially being ineffective.
Since control invariably increases with the number of bait placements, more frequent smaller placements in a given area should always be preferred to fewer larger ones.
Adding fresh bait placements periodically will replenish the bait already consumed or contaminated by dust and cockroach faeces which can render baits repellent.
| Insecticide Formulation |
Mode of Action |
Route of Uptake |
Extent of Direct Activity |
| Abamectin gel |
Chloride channel activator |
Ingestion |
Foraging individuals |
| Abamectin dry flowable |
Chloride channel activator |
Ingestion |
Foraging and non-foraging individuals |
| Fipronil gel |
Chloride channel modulator |
Ingestion |
Foraging individuals |
| Hydramethylon gel |
Electron Transport Inhibitor |
Ingestion |
Foraging individuals |
| Imidacloprid gel |
Acetylcholine Agonist |
Ingestion |
Foraging individuals |
| Lambda-cyhalothrin |
Sodium Channel Modulator |
Contact |
Foraging and non-foraging individuals |
| Bendiocarb |
Cholinesterase inhibitors |
Contact |
Foraging and non-foraging individuals |
Gel-Plus Treatment >><< Insecticide Rotation