Skip to main content
Entomology 2020 Main banner
Icon Legend
This session is not in your schedule.
This session is in your schedule. Click again to remove it.
Presentation Icons
Plenary
Plenary
Livestream
Livestream
On-Demand
On-Demand
Student Competition
Student Competition
Video Chat
Video Chat
Panel Discussion
Panel Discussion
Mixer
Mixer
Poster Icons
Poster
Poster
Student Competition
Student Competition
ViewAttendees 12

P-IE

10-Minute Paper

10-min: P-IE, Pollinators and Pollination

In vitro effects of fungicides on the susceptibility of honeybee (Apis mellifera) larvae to European foulbrood

On-Demand
On-Demand

    Presenting Author(s)

  • Jenna thebeau

    University of Saskatchewan
    Saskatoon, Saskatchewan, Canada

    • Co-Author(s)

  • DL

    Dana Liebe

    Department of Veterinary Pathology, Western College of Veterinary Medicine
    Saskatoon, Saskatchewan, Canada

  • Sarah Wood

    University of Saskatchewan
    Saskatoon, Saskatchewan, Canada

  • LS

    Larhonda Sobchishin

    Department of Veterinary Pathology, Western College of Veterinary Medicine
    Saskatoon, Saskatchewan, Canada

  • IK

    Ivanna Kozii

    University of Saskatchewan
    Saskatoon, Saskatchewan, Canada

  • CK

    Colby Klein

    Department of Veterinary Pathology, Western College of Veterinary Medicine
    Saskatoon, Saskatchewan, Canada

  • IM

    Igor Medici de Mattos

    Department of Veterinary Pathology, Western College of Veterinary Medicine
    Saskatoon, Saskatchewan, Canada

  • MZ

    Michael Zabrodski

    University of Saskatchewan
    Saskatoon, Saskatchewan, Canada

  • IM

    Igor Moshynskyy

    University of Saskatchewan
    Saskatoon, Saskatchewan, Canada

  • ES

    Elemir Simko

    University of Saskatchewan
    Saskatoon, Saskatchewan, Canada

  • MR

    Melanie Roulin

    Department of Veterinary Pathology, Western College of Veterinary Medicine

  • JD

    Jessica E. DeBruyne

    Department of Veterinary Pathology, Western College of Veterinary Medicine

  • MS

    Mohsen Sharafi

    Department of Veterinary Pathology, Western College of Veterinary Medicine

  • MM

    Meghan Milbrath

    Michigan State University
    East Lansing, Michigan

  • Marta Guarna

    Agriculture and Agri-Food Canada
    Victoria, British Columbia, Canada

  • PW

    Patricia Wolf Veiga

    National Bee Diagnostic Centre, Grande Prairie Regional College, Alberta, Canada

  • EG

    Eric M. Gerbrandt

    BC Blueberry Council

Pesticide exposure has been implicated in the immunosuppression of honeybees (Apis mellifera) and suspected to increase susceptibility to European foulbrood (EFB). EFB, caused by the bacterium Melissococcus plutonius, produces increased mortality in honeybee larvae in colonies under environmental and nutritional stress, particularly in association with commercial blueberry pollination. The effects of exposure to formulated fungicide products commonly used in blueberry production on susceptibility of honeybee larvae to EFB during blueberry pollination is currently unknown. Using an in vitro larval infection model of EFB, we tested the effects of chronic larval exposure to field-relevant concentrations of the formulated blueberry fungicides Captan® and Kenja® on larval mortality from M. plutonius infection. Surprisingly, we found that chronic exposure to Captan® or Kenja® during development significantly (PM. plutonius. However, larvae chronically exposed to a combination of Captan® and Kenja® did not experience a significant difference in survival relative to infected controls. These in vitro results suggest that chronic exposure of honeybee colonies to formulated fungicide products during blueberry pollination does not predispose these colonies to EFB. Additional colony-level studies are necessary to verify the field-relevance of these in vitro results.