Other Rodent Species, including Norway Rats (Rattus
norvegicus) have been tested in laboratory and field efficacy
trials. Lab tests trials showed 100% efficacy on Norway
Rats, while preliminary field trials produced promising
results. A full research trial required for regulatory approval
will soon be undertaken. At this time VARGON ® is not
registered for control of Norway Rats.
VARGON® may be applied at any time and does
not depend on the feeding patterns of the target species
to be effective. Application can be made in early spring
prior to emergence, throughout the summer when the animals
are active or in late fall after the rodents begin to hibernate.
Burrows must be examined and found to be free of threatened
or endangered species prior to using VARGON®.