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Number Avg. # egg masses 2013 defoliation Number of sites Region/District/Area of Sites per 10 m2 Table 10. Summary of the average number of western spruce budworm egg masses per 10 m Kootenay Boundary Boundary foliage prediction moderate or greater Beaverdell 5 11.2 ± 4.1 light 0 Grand Forks 19 30.3 ± 4.3 light 3 Rock Creek East 23 26.5 ± 3.4 light 2 Rock Creek West Revelstoke 17 14.5 ± 2.5 light 0 Carnes Creek 2 10.4 ± 5.1 light 0 Laforme Creek 2 9.6 ± 4.7 light 0 Mars Creek Rocky Mountain 2 19.9 ± 6.6 light 0 Flathead 19 20.3 ± 3.5 light 0 Grasmere Thompson Okanagan Cascades 9 35.3 ± 6.2 light 3 Lower Nicola 6 32.5 ± 8.0 light 1 Princeton 6 52.5 ± 13.9 moderate 3 Gun Lake area 66 87.7 ± 7.0 moderate 49 Merritt North 22 121.0 ± 23.8 moderate 17 Coldwater River 19 117.4 ± 17.3 moderate 16 Peter Hope-Stump Lake Kamloops 27 130.9 ± 21.0 moderate 9 Pinantan 9 24.3 ± 7.4 light 1 Kamloops Northwest 21 42.8 ± 8.4 light 6 Monte Lake-Westwold 20 49.0 ± 11.6 light 8 Kamloops West 11 85.1 ± 17.8 moderate 7 Peter Hope-Stump Lake 17 119.6 ± 18.1 moderate 13 Merritt North Okanagan Shuswap 14 136.8 ± 28.1 moderate 12 West Kelowna 8 25.5 ± 4.6 light 0 East Kelowna 13 26.6 ± 4.7 light 2 Penticton 31 35.5 ± 4.5 light 10 Monte Lake-Westwold 32 42.3 ± 5.3 light 13 2 foliage and predicted 2013 defoliation by sampling area in the Kootenay Boundary and Thompson Okanagan Regions. Ministry of Forests, Lands and Natural Resource Operations, Kamloops, B.C. 54
Above: Lucy Stad receiving budworm egg mass survey training near Merritt. Below: budworm pre-spray egg mass sampling near Orofino Mountain, June 2012, Okanagan TSA. Ministry of Forests, Lands and Natural Resource Operations, Kamloops, B.C. 55 Western spruce budworm egg masses. Top: new egg mass Middle: hatched egg mass Bottom: parasitized egg mass
Page 1 and 2:
2012 Overview of Forest Health Cond
Page 3 and 4: In t r o d u c t I o n This report
Page 5 and 6: Table 2 continued. Area summaries f
Page 7 and 8: So u t h e r n In t e r I o r ov e
Page 9 and 10: Attack in young lodgepole pine stan
Page 11 and 12: A total of 116,012 hectares of high
Page 13 and 14: we S t e r n he M l o c k lo o P e
Page 15 and 16: BI r c h le a f MI n e r, fe n u s
Page 17 and 18: th o M P S o n ok a n a g a n re g
Page 19 and 20: Aspen decline syndrome became more
Page 21 and 22: Defoliators Western spruce budworm
Page 23 and 24: Defoliators Western spruce budworm
Page 25 and 26: Conifer Defoliators Western spruce
Page 27 and 28: A Douglas-fir Drought-Decline Compl
Page 29 and 30: Bo u n d a rY tSa Bark Beetles Moun
Page 31 and 32: cr a n B r o o k tSa Bark Beetles M
Page 33 and 34: go l d e n tSa Bark Beetles Mountai
Page 35 and 36: ca r I B o o re g I o n Su M M a r
Page 37 and 38: Douglas-fir beetle continued to be
Page 39 and 40: Defoliators As expected, western sp
Page 41 and 42: Thompson Okanagan Region The Thomps
Page 43 and 44: Table 2. List of western spruce bud
Page 45 and 46: Hiller spraying B.t.k. on budworm b
Page 47 and 48: Kootenay Boundary Region A total of
Page 49 and 50: Abbott’s corrected mortality comp
Page 51 and 52: Figure 5. Density and distribution
Page 53: 2012 Population Monitoring - Result
Page 57 and 58: One of the cancelled spray areas in
Page 59 and 60: In the Thompson-Okanagan Region, we
Page 61 and 62: Figure 9. Average number of western
Page 63 and 64: There is an ongoing study to calibr
Page 65 and 66: Larval density ± SEa b Percent mor
Page 67 and 68: Table 19. Total number of larvae pe
Page 69 and 70: Table 21. Average number of Douglas
Page 71 and 72: This stand has records of defoliati
Page 73 and 74: References Garbutt, R. 1992. Wester
Page 75 and 76: Be a r IM Pa c t S o n gr o w t h o
Page 77 and 78: To better understand the progressio
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