Warfarin, Diphacinone, and Pival are classified as which type of rodenticides?

The classification of Warfarin, Diphacinone, and Pival as multifeed anticoagulants is based on their mode of action and dosage requirements when used for rodent control. Multifeed anticoagulants require multiple feedings for the target rodent to ingest a lethal dose, which is characteristic of these substances.

This means that rodents need to consume the bait several times over a period of days to accumulate enough of the active ingredient in their system to cause death, primarily by interfering with the normal clotting mechanism in their blood. The effectiveness of multifeed anticoagulants hinges on their cumulative effect, requiring continuous access to the bait to ensure sufficient ingestion.

In contrast, single feed anticoagulants would allow for a lethal dose to be taken in just one feeding, while acute rodenticides act quickly, and chlorinated hydrocarbons are a different class of toxic substances used for pest control that do not necessarily act as anticoagulants. Thus, the specific classification of Warfarin, Diphacinone, and Pival as multifeed anticoagulants is accurate and reflects their operational characteristics in pest control scenarios.