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Emergence trap for monitoring the cranberry tipworm Dasineura oxycoccana in Quebec Annabelle Firlej, Jean-Pierre Deland & Daniel Cormier.

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Presentation on theme: "Emergence trap for monitoring the cranberry tipworm Dasineura oxycoccana in Quebec Annabelle Firlej, Jean-Pierre Deland & Daniel Cormier."— Presentation transcript:

1 Emergence trap for monitoring the cranberry tipworm Dasineura oxycoccana in Quebec Annabelle Firlej, Jean-Pierre Deland & Daniel Cormier

2 Cranberry tipworm Dasineura oxyccocana Diptera pest presents in North-America Attacks shoots of cranberry and provokes gall In blueberry: blueberry gall midge but reproductive isolation ( Cook, 2011 ) Photo: CETAQ

3 Cranberry tipworm Dasineura oxyccocana 25% of the field in Quebec with damage In general upright damaged produces 50% less fruits (Le Duc 2010) When infested by the 3rd generation: 33% of fruiting buds are recovered the next year (Le Duc 2010) Photo: CETAQ

4 Scouting Current scouting: 100 shoot observed under binocular = time consuming! Need for adult scouting to better predict egg population, generation and spraying date MOVENTO 240 SC registered, application after flowering at egg hatching Different methods tested or under development for monitoring adults (Sarzinsky & Liburd, 2003, talk of S. Fitzpatrick)

5 Monitoring in blueberry of Florida Emergence trap developed for blueberry gall midge in blueberry rabbiteye (Roubos & Liburd 2010)

6 Emergence traps developed in Quebec Petri dish trap (P1) Plate trap (P2)

7 Objectives and set up 1.Which trap perform better? 2.Are adults populations correlated with eggs or larvae populations? 3.Where to set up the trap? 4.Is the scouting with a trap more costly (labor)

8 Objectives and set up 1.Which trap perform better? 2.Are adults populations correlated with eggs or larvae populations? 3.Where to set up the trap? 4.Is the scouting with a trap more costly (labor) 3 farms 9 fields 15 weeks of sampling 2 traps 12 of each traps

9 Objectives and set up 1.Which trap perform better? 2.Are adults populations correlated with eggs or larvae populations? 3.Where to set up the trap? 4.Is the scouting with a trap more costly (labor) 3 farms 9 fields 15 weeks of sampling 2 traps 12 of each traps

10 Objectives and set up 1.Which trap perform better? 2.Are adults populations correlated with eggs or larvae populations? 3.Where to set up the trap? 4.Is the scouting with a trap more costly (labor) 3 farms 9 fields 15 weeks of sampling 2 traps 12 of each traps Photo: CETAQ

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14 Are adults populations correlated with eggs or larvae populations? Spearman correlation

15 1.Which trap perform better? 2.Are adults populations correlated with eggs or larvae populations? 3.Where to set up the trap? 4.Is the scouting with a trap more costly (labor)

16 In summer 2013 Petri dish trap 12 farms 12 traps in each field Early may to September HOBO loggers 1.Which trap perform better? 2.Are adults populations correlated with eggs or larvae populations? 3.Where to set up the trap? 4.Is the scouting with a trap more costly (labor)

17 Analyzing time of labor a b b ANOVA P<0.0001

18 Analyzing error du to technique used ANOVA P>0.05 a a

19 Conclusion Petri dish efficient to capture adults Good correlation with eggs but better with larvae Appears less costly in time of labor Data integration in forecasting model predicting eggs and larvae generation. Gaétan Bourgeois Scientist in Bioclimatology and Modelling

20 Acknowledgements Franz Vanoosthuyse (IRDA) Jonathan Veilleux (IRDA) Students from CETAQ and IRDA Growers from Quebec Funding:


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