Scaffolds

29 April 2024

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In this week's regular episode, we hear from Kerik about the basics of fire blight management in blossoms, and scab and blight forecasting. Anna brings us the State of the State update on degree day accumulation and phenology. This week for the entomology update we have a bonus episode on pollinators with Monique and Dr. Scott McArt, so be sure to check that out!

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Links and resources:

  • Cornell Fruit Resources - Frost Protection
  • Cornell Statewide Frost Protection Webinar (4/12 recording)
  • MSU Extension - assessing frost damage
  • NY Tree Fruit Pest Monitoring Network
  • Interested in collaborating and contributing trap capture data to the pest monitoring network? Contact Anna Wallis - [email protected]

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    Phenology & DDs* for NY NEWA Stations from 1/1 - 4/30

    • Station || Stage || DD 43F
    • Geneva || bloom || 333
    • Highland (HVRL) || bloom || 412
    • Clifton Park || pink || 292
    • Peru (Forrence) || tight cluster || 218
    • Medina - Inland || bloom || 355
    • Appleton North - Lake || bloom || 295
    • Fairville (The Apple Shed) - Inland || bloom || 326
    • Williamson (DeMarree) - Lake  || bloom || 326

      • *all DDs Baskerville-Emin, B.E

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      Upcoming Pest Events

      • Pest/Phenology Event || DD Base 43˚F || Approx. Date
      • Rosy apple aphid – 1st nymphs present || 189 ± 55 || 25-Apr ± 7 days
      • STLM – 1st adult catch || 168 ± 48 || 20-Apr ± 9 days
      • STLM – 1st egg observed || 208 ± 65 || 27-Apr ± 5 days
      • Tight cluster (McIntosh) || 228 ± 27 || 27-Apr ± 7 days
      • Tarnished plant bug – 1st observed || 222 ± 105 || 25-Apr ± 15 days
      • OBLR – 1st overwintered larvae observed || 236 ± 78 || 29-Apr ± 7 days
      • Black stem borer – 1st adult catch || 283 ± 50 || 6-May ± 3 days
      • European red mite – egg hatch observed || 284 ± 53 || 6-May ± 4 days
      • Pink (McIntosh) || 289 ± 26 || 3-May ± 7 days
      • STLM Egg Sample || Pink
      • OFM Traps set out || Pink
      • Oriental fruit moth – 1st adult catch || 229** ± 44** || 2-May ± 8 days
      • RBLR – 1st flight peak || 303 ± 75 || 4-May ± 9 days
      • STLM – 1st flight peak || 337 ± 71 || 7-May ± 8 days
      • Full bloom (McIntosh) || 378 ± 35 || 10-May ± 6 days
      • "OBLR Overwintered Gen. Sample || Bloom"
      • Codling Moth Traps set out || Bloom

        • **Base temperature for OFM 45F

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        As a point of reference:

        • Tight cluster (McIntosh) || 228 ± 27 || 27-Apr ± 7 days

        • Pink (McIntosh) || 289 ± 26 || 3-May ± 7 days

        • Full bloom (McIntosh) || 378 ± 35 || 10-May ± 6 days

          • ...more
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