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Minnesota High Tunnel Raspberries 2009 Update
 

Minnesota High Tunnel Raspberries 2009 Update

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Presentation at the 2009 Minnesota Statewide High Tunnel/Season Extension Conference

Presentation at the 2009 Minnesota Statewide High Tunnel/Season Extension Conference

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  • Emily H: Introduce UM High Tunnel Berry researchWhy this projectEPA goalsEtc.
  • Emily H talk about funding sources
  • Steve present Morris project chronologically
  • Steve
  • Steve
  • Steve
  • Steve
  • Steve
  • Steve talk about trellis. Intermediate string needed to support mid size canes.Broken cane picture.
  • Steve talk about harvest in high tunnel and outside.
  • Harvest and chef comments (comments listed on next slide)
  • Steve share comments from UMM chef.
  • Steve: supplemental heatingRecommended min. 42000 BTU for this size high tunnel. Share BTUs, cost, etc. of new heater.
  • Turn it over to Emily T. to present data
  • Emily T
  • Emily T
  • Emily T
  • Emily T
  • Emily T
  • Emily T
  • Emily T
  • Emily T
  • Ron talk about high tunnel benefits, Joan J, harvest, pest complex in high tunnels compared to field.
  • Ron talk about spider mite damage
  • Ron talk about what he did to control spider mites;persimilis predatory mite that Emily T. ordered, did it work to control spider mites? Rates of release, timing, etc. Any other details.Steve tell what you did to control spider mites (monitoring, lens magnification?, high pressure water, hort oil)
  • Ron or Emily T or Emily H talk about data from Alex.
  • Ron, Emily T or Emily H talk data from Alex.
  • Ron, Emily T or Emily H talk data from Alex.

Minnesota High Tunnel Raspberries 2009 Update Minnesota High Tunnel Raspberries 2009 Update Presentation Transcript

  • High Tunnel Raspberry ResearchMorris, MNAlexandria, MNGrand Rapids, MN2009 Update
  • University of Minnesota
    Organic Research Initiative
    Multi-disciplinary
    Focus research efforts
    Connect with stakeholders
    Improve funding potential
    Get Involved!
  • High Tunnel Berries at the
    University of Minnesota
  • High Tunnel Berries at the
    University of Minnesota
    Individual donations
  • The Tunnel
  • Irrigation
  • Netting
  • Planting
    May 2008
  • The
    First Year
  • The
    First Year
  • Trellising
  • Harvest
  • Harvest
  • “…the raspberries produced from the high tunnel were absolutely phenomenal….”
    “Some of the biggest I have ever seen.”
    “…plump, sweet and tart!!!! Nice bright color…not bruised at all.”
    “We loved the raspberries....”
    -Joshua O’Brien, Executive Chef
    University of Minnesota Morris
    Sodexo Campus Services
  • Heat
    OLD
    NEW
  • UM Morris
    Data
  • 4’
    3’
    Autumn Britten
    8/14/09
    Field
    Height
    Caroline 8/14/09
  • 5’
    6’
    Autumn Britten
    8/14/09
    High Tunnel
    Height
    Caroline 8/14/09
  • Inches
  • Pounds/36 linear feet of row
  • Average berry size in a 6 oz. Driscoll’s clamshell
  • Return on initial investment of $8238.00 after third full year.
  • Joan J at Alexandria, MN
  • Spider Mites
  • Spider Mites
  • Inches
  • Average berry size in a 6 oz. Driscoll’s clamshell
  • High Tunnel Primocane-Fruiting Raspberry Production at Grand Rapids- Year Two
    Shengrui Yao
    Department of Horticulture
    North Central Research and Outreach Center
  • Objectives:
    Evaluate five primocane-fruiting raspberry cultivars
    Compare their performance in the high tunnel with field planting
    Monitor temperature changes in high tunnel and potential winter damage
    Monitor pest and disease problems in the high tunnel
    Disseminate the information to potential growers
    Special thanks to Northeast Minnesota Sustainable Development Partnership for their support of this project
  • Tunnel management:
    Drip irrigation with 2 T-tapes/row
    Fertigation for soil fertility management in 2009
    Opening/closing tunnel sides to control tunnel temperature
    Many wild bumble bees and honey bees for pollination occurred naturally in the area
    Propane heater for frost protection
  • Yield data
    In 2008, total of 154 lb of berries were harvested from our 21x48 ft high tunnel from August 5 to November 6.
    In 2009, total of 379lb of berries were harvested from our 21x48 ft high tunnel which was equivalent to 16,000 lb/acre from August 5 to November 2.
    In 2009, 80 lb of berries were harvested from the field planting from August 12 to October 5.
  • Yield (continued):
  • Fruit earliness:
  • Productivity (2009):
    Average HT berry weight (g)
    XAutumn Britten had double fruits in 2008 which made the average berry weight higher.
    *This yield is the berry weight per plant of the “original planting” in 2008.
  • Cultivars:
    Autumn Bliss: small fruit, fewer canes, very thorny, mid season.
    Autumn Britten: nice fruit, fewer canes, mid season, (double berries)
    Caroline: most vigorous, lots of canes and branches, nice flavor and fruits, very productive, moderate thorns, late cultivar
    Joan J: nice and big fruit, thornless, mid season cultivar
    Polana: very early, short plants, small and glossy fruits, moderate thorns
    Bare root plants were planted in the high tunnel at May 9, and in the field on May 12, 2008
    Hand thinned most of Caroline plots and some Joan J plots in mid May and early July, 2009.
  • Air temperature changes in and outside of high tunnel during winter of 2008/2009
  • Air temperature changes in and outside of raspberry high tunnel during growing season of 2009
    Heater effect
  • High tunnel 5-19-09
    Dec 15, 2008
    Snow cover in winter No snow in winter
    Field 5-19-09
  • Joan J
    9-27-09
    Caroline
    Joan J
  • Joan J
    Polana
    Caroline
    Autumn Britten
  • Raspberry Pests and Diseases at Grand Rapids
    High tunnel:
    Raspberry sawflies for both 2008 and 2009
    Spider mites
    Appeared later in the season in 2008 without treatment;
    Released parasitic mites and spot treated with insecticidal soap in 2009
    Cane borer (one cane in 2008)
    Crown gall (one plant in 2008)
    No other disease pressure
    Field: only raspberry sawfly in 2008 and 2009
  • What we learned in 2008 and 2009
    High tunnel primocane-fruiting raspberry is doable in MN even in northern MN
    Tissue culture plants are highly recommended
    Cane thinning and early pinching may be necessary for some vigorous cultivars
    Limit N application if N was high in your high tunnels
    Heat equipment is necessary for frost protection in northern Minnesota