Scaffolds

1 April 2024

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In this episode, we talk about unexpected woolly apple aphid populations springing up in western NY, forecasting apple scab events across the state, and our regular state of the state degree day accumulations and phenology updates. 

Our regular hosts include Monique Rivera ([email protected]), Assistant Professor of Entomology at Cornell AgriTech; Kerik Cox, Associate Professor of Plant Pathology at Cornell AgriTech; Kelsey Tobin, postdoctoral researcher, and Anna Wallis, Fruit IPM Coordinator at NYSIPM.

Segments recorded March 31 (Kerik), April 1 (Monique and Kelsey), and April 2 (Anna), and published April 2.

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Links and resources:

  • Statewide Virtual Scout Training
  • Apple IPM Intensive Workshop playlist
  • Apple Insect Targets and IPM Practices (including explanations of Degree Day calculations)

    • ______________________________

    Phenology and DDs (43F) for NY NEWA Stations from 1/1-4/1*

    • Geneva || 86 || projected 90 by EOW
    • Highland HVRL || 102 || projected 111 by EOW
    • Clifton Park || 48 || projected 51 by EOW
    • Peru (Forrence) || 13 || projected 16 by EOW || dormant
    • Medina - Inland || 99 || projected 100 by EOW
    • Appleton North - Lake || 73 || projected 73 by EOW
    • Williamson (Mason) - Inland || 79 || projected 79 by EOW
    • Williamson (DeMarree) - Lake || 97 || projected 97 by EOW

      • ______________________________
      BASE 43F Upcoming Pest Events: Average DDs (std)*

      • STLM traps set out: 1 April
      • Pear psylla – egg laying: 84 (± 44)
      • RBLR – 1st catch: 144 (± 32)
      • Rosy apple aphid – 1st nymphs present: 189 (± 55)
      • STLM – 1st adult catch: 168 (± 48)


        • BASE 50F Upcoming Pest Events: Average DDs (std)*

        • STLM traps set out: 1 April
        • Pear psylla – egg laying: 33 (± 21)
        • RBLR – 1st catch: 60 (± 20)
        • Rosy apple aphid – 1st nymphs present: 86 (± 30)
        • STLM – 1st adult catch: 73 (± 28)

          • *All DDs Baskerville-Emin, B.E.

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