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Emergence trap for monitoring the cranberry tipworm Dasineura oxycoccana in Quebec

Emergence trap for monitoring the cranberry tipworm Dasineura oxycoccana in Quebec. Annabelle Firlej, Jean-Pierre Deland & Daniel Cormier . Cranberry tipworm Dasineura oxyccocana. Diptera pest presents in North-America Attacks shoots of cranberry and provokes gall

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Emergence trap for monitoring the cranberry tipworm Dasineura oxycoccana in Quebec

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  1. Emergence trap for monitoring the cranberry tipworm Dasineuraoxycoccanain Quebec Annabelle Firlej, Jean-Pierre Deland & Daniel Cormier

  2. Cranberry tipworm Dasineuraoxyccocana • 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 Dasineuraoxyccocana • 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 Petridishtrap(P1) Plate trap (P2)

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

  8. Objectives and set up • Which trap perform better? • Are adults populations correlated with eggs or larvae populations? • Where to set up the trap? • 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 • Which trap perform better? • Are adults populations correlated with eggs or larvae populations? • Where to set up the trap? • 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 • Which trap perform better? • Are adults populations correlated with eggs or larvae populations? • Where to set up the trap? • 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

  11. Are adults populations correlatedwith eggs or larvae populations? Spearman correlation

  12. Which trap perform better? • Are adults populations correlated with eggs or larvae populations? • Where to set up the trap? • Is the scouting with a trap more costly (labor)

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

  14. Analyzing time of labor a b b ANOVA P<0.0001

  15. Analyzing error du to technique used a a ANOVA P>0.05

  16. 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

  17. Acknowledgements • Franz Vanoosthuyse (IRDA) • Jonathan Veilleux (IRDA) • Studentsfrom CETAQ and IRDA • GrowersfromQuebec • Funding:

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