What type of rodenticide is known for being fast-acting?

Fast-acting rodenticides are typically classified as acute toxins. These substances work by causing immediate physiological effects in rodents, leading to rapid death. Acute toxins target the nervous system or vital organs directly, which allows them to be effective within a short period after ingestion.

In contrast, anticoagulants, like chlorophacinone, require multiple feedings over several days to achieve their lethal effect. They function primarily by disrupting the blood-clotting mechanism, leading to death from internal bleeding rather than immediate toxic effects. Non-toxic baits, as the name suggests, are not intended to kill rodents but may be used as part of a population management strategy or to attract them to traps.

Thus, the key characteristic of acute toxins is their rapid action, making them a preferred choice for situations where immediate control of rodent populations is necessary.