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Bell Labs

Contrac All-Weather Blox

Contrac All-Weather Blox is a single-feeding anticoagulant rodenticide containing the active ingredient, Bromadiolone 0.005%. Contrac Blox is specially formulated with an optimal blend of food-grade ingredients and a small amount of paraffin.

Contrac Blox is an excellent clean-out and maintenance bait to control commensal and non-commensal rodent species including warfarin-resistant Norway rats, meadow voles and Deer Mice.

This is the most popular rodenticide in the industry. 

For ease of use, a hole in the center of the BLOX lets technicians place it on bait securing rods in tamper-resistant bait stations, or nail/wire the BLOX in place. CONTRAC 28 gm BLOX work well in tight places, nailed to rafters or ceilings, or in Bell's tamper-resistant bait stations.

  • Palatable, yet weatherable, CONTRAC works well in wet and dry conditions.
  • Multiple edges that appeal to a rodent's desire to gnaw. 
  • Bait shyness is not a problem with CONTRAC because mortality occurs a few days after bait is consumed.
  • The antidote, Vitamin K1, is readily available.