This week we are joined by special guest Liz Malchoff of Empire Drip Supply in Sodus, NY. As usual, our other hosts include Monique Rivera, assistant professor of entomology at Cornell AgriTech; Kerik Cox, associate professor of plant pathology; and Anna Wallis, fruit IPM coordinator.
In this episode, Monique talks with Liz about the benefits and logistics of using chemigation systems in apple orchards. Kerik talks about management strategies for apple blotch (formerly Marssonina leaf blotch). Anna brings us her State of the State update on regional degree day accumulation, pest developments, and apple phenology. Recorded July 11 and released July 13, 2023.
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BASE 43F Phenology and DDs for NY NEWA Stations from 1/1-7/11
- Geneva || fruit sizing || 1769
- Highland HVRL || fruit sizing || 2064
- Clifton Park || fruit sizing || 1880
- Peru (Forrence) || fruit sizing || 1671
- Medina - Inland || fruit sizing || 1677
- Appleton North - Lake || fruit sizing || 1597
- Fairville (The Apple Shed) - Inland || fruit sizing || 1685
- Williamson (DeMarree) - Lake || fruit sizing || 1654
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BASE 43F Upcoming Pest Events: Average DDs (std)*
- Apple Maggot - set traps out: July 1
- ERM - sample 5 mites/leaf: July 1
- Comstock mealybug - set tape traps: July 1 ENY, July 15 WNY
- OFM - 2nd flight starting: 1180 (± 136)
- OBLR - summer gen. sample: approx. July 10
- STLM - summer gen. sample: approx. July 9
- RBLR - 2nd flight starting: 1367 (± 105)
- AM - 1st catch: 1509 (± 285)
- LPTB - peak catch: 1234 (± 470)
- STLM - 2nd flight peak: 1563 (± 207)
- CM - 1st flight ending: 1557 (± 262)
- Peachtree borer - peak catch: 1579 (± 465)
- Lesser appleworm - 2nd flight starting: 1768 (± 339)
- OFM - 2nd flight peak: 1450 (± 147)
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BASE 50F DDs for NY NEWA Stations from 1/1-7/5*
- Geneva || 1166
- Highland HVRL || 1345
- Clifton Park || 1240
- Peru (Forrence) || 1092
- Medina - Inland || 1088
- Appleton North - Lake || 1021
- Fairville (The Apple Shed) - Inland || 1101
- Williamson (DeMarree) - Lake || 1066
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BASE 50F Upcoming Pest Events: Average DDs (std)*
- Obliquebanded Leafroller - 1st adult catch: 523 (± 62)
- Apple Maggot - set traps out: July 1
- ERM - sample 5 mites/leaf: July 1
- Comstock mealybug - set tape traps: July 1 ENY, July 15 WNY
- OFM - 2nd flight starting: 856 (± 106)
- OBLR - summer gen. sample: approx. July 10
- STLM - summer gen. sample: approx. July 9
- RBLR - 2nd flight starting: 866 (± 135)
- AM - 1st catch: 973 (± 206)
- LPTB - peak catch: 785 (± 338)
- STLM - 2nd flight peak: 1011 (± 163)
- CM - 1st flight ending: 1011 (± 187)
- Peachtree borer - peak catch: 1036 (± 353)
- Lesser appleworm - 2nd flight starting: 1165 (± 240)
- OFM - 2nd flight peak: 1115 (± 190)
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*All DDs Baskerville-Emin, B.E.
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