QDC Ranch Services
Prairie Dog and Burrowing Rodent Control

PERC System

Pressurized Exhaust Rodent Controller

Environmentally Friendly! 
No Poison Baits! 
No Explosions!
Pressurized exhaust kills burrowing rodents.

Carbon Monoxide is a very potent poison for use in euthanizing burrowing rodents. Until now, there has been no inexpensive, efficient delivery system.

The PERC is an elegant solution: An internal combustion engine is used to both generate carbon monoxide and pressurize it to 125 PSI. Using multiple probes, burrows are easily detected and instantly filled with a lethal concentration of carbon monoxide before a rodent has a chance to react or escape.

Points of Interest:
  • Gopher mounds are probed, not dug out.
  • Multiple probes are used in a single burrow.
  • No special use permits are required.
  • Crop stands are not damaged.
Operator Safety is important!
  • No poison baits.
  • No explosions or explosive devices.

While baits, traps, shooting, blowing up burrows, and conventional low-pressure auto exhaust delivery systems all work, nothing is as effective, efficient and inexpensive as the PERC system. A PERC system can treat moderately infested alfalfa fields at about 3.5 acres per hour with a single operator. 

2006 tests conducted by the University of California Extension Service show that the PERC can reduce gopher populations by 66 percent and ground squirrel populations by 75 percent in a single treatment.

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