All are anti-coagulant type rodenticides except?

The correct response pertains to the classification of rodenticides, specifically the distinction between anti-coagulant types and other types. Anti-coagulant rodenticides work by disrupting the blood’s ability to clot, leading to hemorrhaging and ultimately death in the targeted rodent populations.

Warfarin and Fumarin are both well-known examples of anti-coagulant rodenticides. They function by inhibiting vitamin K recycling in the liver, which is essential for the synthesis of clotting factors. These agents require multiple feedings over a period to cause lethality, making them effective for controlling rodent infestations.

In contrast, Surflan is a herbicide, specifically an herbicide that acts on weeds and not a rodenticide, thereby making it the correct answer in this context. The classification of Surflan does not align with rodenticides, confirming its role as not being an anti-coagulant type. Hence, identifying Surflan as an exception is essential to understanding the different categories within pest control products.