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In the summer of 2007, 45 male moths were caught in
38 pheromone traps at 15 locations listed below:
BC Interior: (total = 0 moths)
Lower Mainland: (total = 15 moths in 13 traps at 9 locations)
Harrison Hot Springs (6), Burnaby (1), White Rock (1), Langley (5),
Delta (2) Vancouver
Island: (total = 30 moths in 25 traps at 6 locations)
Lake Cowichan (5), Shawnigan Lk. (1), Prospect Lk. (1), Saltair (Ladysmith) (10
= 4 CFIA monitoring traps + 6 mt), Saltspring Island (13
= 3 CFIA monitoring traps + 10 mt).
mt =
High density mass trapping grids (trap density at 9 traps/ acre or 5760
traps/sq.mi.,
inter-trap distance 70 ft).
Positive Trap Catches in 2007 - Click on the map for a larger image. Use this
link to see more detailed maps showing the distribution of positive
trap catches at each trapping location.
Mass trapping efforts in
Sidney demonstrated good efficacy in eradicating the existing population
detected in previous years (see the alternative
treatment page for more information on mass trapping). The aerial
spray in Courtenay and the ground sprays in Colwood and Victoria were
considered successful with no moths caught in any of these areas. The
ground spray with Dipel and volunteer-lead mass trapping program on
Saltspring Island resulted in a reduction of moths from 35
in 2006 to 13 in 2007.
Treatment decisions for 2008 are
still being made and will be communicated when they become available.
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Contact Tim Ebata
if you have comments on the presentation of this information.
BC Ministry of Forests and Range
Forest Practices Branch
P.O. Box 9513 Stn. Prov. Gov.
Victoria, BC
V8W 9C2
Section phone: (250) 387-8739
Section fax: (250) 387-2136
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Gypsy Moth Trapping Results in
2007
