Bell Labs Terad3 Vitamin D3 Rodenticide

Bell Labs Terad3 Vitamin D3 Rodenticide is a professional-grade, multiple-feed anticoagulant bait that offers a different mode of action for effective rodent control programs, particularly where resistance to traditional anticoagulants is a concern. Its active ingredient, cholecalciferol (Vitamin D3), works by raising blood calcium to toxic levels, leading to calcification of soft tissues and eventual kidney and heart failure.

The core product offering is the Terad3 BLOX, a highly palatable, extruded block formulation. This 1-ounce block is designed to remain effective in damp conditions and resist mold, making it suitable for use in both indoor and outdoor bait stations. It contains a high concentration of active ingredient to ensure lethality. The bait is available in two main formats: a standard 1-ounce block packaged in 4-pound and 18-pound pails for general commercial and residential use, and a specialized Terad3 AG BLOX. The AG variant features a center hole for easy placement on rods or wires within tamper-resistant stations and is packaged in an 18-pound pail specifically labeled for agricultural settings.

Unlike conventional anticoagulants, Vitamin D3 rodenticides like Terad3 do not rely on disrupting blood clotting factors. Instead, they cause hypercalcemia, which is often lethal after several days of feeding. This makes them a valuable tool in integrated pest management (IPM) strategies to combat rodenticide resistance. The product is toxic to rodents through ingestion and poses a secondary poisoning risk to predators, so proper placement within secure bait stations is essential. As with all rodenticides, applicators must follow the label instructions, use appropriate personal protective equipment, and ensure bait is placed out of reach of children, pets, and non-target wildlife.