Notice of Hearing on the Application to Use Sodium Fluoroacetate ...

The e1,j rjenc2 2 jtsbi i shes that ~~cmoo!,~nfl
1 sZ0 ar;e-Ga? cs ar? intended
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as 3 general coyota jopuiatisn iuporession 'ec!?nl;ce frcn l,vn:ih it ir
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assuned that oenefi ts
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in tne fom <strong>of</strong> r~dilcti~ns
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in ?redation ioss?~ 1,4i i 1
flow. Wyoming, the applicant for regi strztion <strong>of</strong> 1080 large-bai is, has
not established thac use <strong>of</strong> such baits reduces coyotz populations over
large areas or thzt reducrions in ?redator losses <strong>of</strong> livestock result
from such use. In short, the effecriveness oi 1020 large-baits 3s a
predaxor conrrol technique has not been pstablished. This being so and
the risks to &L least endangered and threatened specizs frcm such uses
not having been shown to have been overest~mated in 1272, the applicanr
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has not met izs burden <strong>of</strong>-proving that the benefi Ti outweigh' %e risks.
This concl,usicn is buttressed by che fact thac overall losses ~i sheep
and lambs to ?reca~ors have not be5n shown lo have incrersed since 1972.
Accordingly, nodification <strong>of</strong> the 1972 order with respect za 1C60 1zr:e-
baits is noc required 2nd me application for tne registrztion <strong>of</strong> 1080
in large-bai ts will be dismissed.
Different considerations apply to the us2 cf lQ80 in toxic collars
and in single-lethal Cose (SLD) baits. Toxic collars are clearly for
rhe rsmoval <strong>of</strong> parricular de?rsdaiing coyotes and fox25 and the findjngi
herein establish that 1080 in the toxic collar can be used iichbuc
unreasonable risks to health and the environment. If scatt2red or
spread over wide areas, 1C80 in SLD baits might also be used as a general
coyote population suppression technique. Such use is open to the same
objections as 1080 in large-baits, its effectiveness has not been
11/ It is a well established principle that where ihe evidence does
not pKponderate in favor <strong>of</strong> one conciusiur~ iii a n . ths paitj: h;vl-:
the burden <strong>of</strong> pro<strong>of</strong> on that issue cannot prevail.