It has also been speculated that an unidentified health threat, or poisoning from the insecticide Fipronil used to control yellow crazy ant 'supercolonies' could be responsible for the decline.
To control colonies the roach bait may contain the active ingredient Fipronil .05% or Hydramethylnon 2%, available from Maxforce and Combat.
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The active ingredient Fipronil .05% disrupts the insect central nervous system, leading to the cockroach’s death in 6 to 24 hours.
Fipronil |