On this week’s episode of scaffolds, I talk starting to think about BMSB, Kerik talks about apple scab symptoms on the fruit versus the leaves and disease forecasting for marsonina, powdery mildew and fire blight, and anna gives us our state of the state update on degree day accumulation and trap captures!
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Phenology & DDs for NY NEWA Stations from 1/1 - 7/22
Station || Stage || DD 43F || Rainfall (in)
Geneva || fruit sizing || 2435 || 1.37
Highland (HVRL) || fruit sizing || 2603 || 1.97
Clifton Park || fruit sizing || 2444 || 1.31
Peru (Forrence) || fruit sizing || 2151 || 1.6
Medina - Inland || fruit sizing || 2355 || 1.26
Appleton North - Lake || fruit sizing || 2207 || 0.67
Fairville (The Apple Shed) - Inland || fruit sizing || 2312 || 1.48
Williamson (DeMarree) - Lake || fruit sizing || 2344 || 1.9
*all DDs Baskerville-Emin, B.E
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Pest/Phenology Event || DD Base 43˚F || Approx. Date
Apple Maggot Traps Set Out (in orchard) || 1-Jul"
ERM Sample – 5.0 mites/leaf || 1-Jul
Comstock mealybug tape traps set out || July 1 (ENY), July 15 (WNY)
OFM – 2nd flight starting || 1180* ± 136* || 29-Jun ± 5 days
OBLR Summer Gen. 1st Sample || 10-Jul ± 5 days
STLM Summer Gen. 1st Sample || 9-Jul ± 7 days
RBLR – 2nd flight starting || 1367 ± 105 || 29-Jun ± 6 days
AM – 1st catch || 1509 ± 285 || 4-Jul ± 12 days
Lesser peachtree borer – peak catch || 1234 ± 470 || 25-Jun ± 19 days
STLM – 2nd flight peak || 1563 ± 207 || 6-Jul ± 8 days
Codling moth – 1st flight ending || 1557 ± 262 || 6-Jul ± 12 days
Peachtree borer – peak catch || 1579 ± 465 || 7-Jul ± 19 days
Lesser appleworm – 2nd flight starting || 1768 ± 339 || 14-Jul ± 12 days
OFM – 2nd flight peak || 1450* ± 147* || 11-Jul ± 9 days
American plum borer – 2nd flight starting || 1850 ± 290 || 16-Jul ± 11 days
RBLR – 2nd flight peak || 1721 ± 232 || 13-Jul ± 7 days
San Jose scale – 2nd flight starting || 1804 ± 170 || 15-Jul ± 8 days
Codling moth – 2nd flight starting || 1887 ± 313 || 20-Jul ± 13 days
Dogwood borer – peak catch || 1611 ± 226 || 8-Jul ± 10 days
STLM – 2nd flight ending || 2167 ± 177 || 28 Jul ± 8 days
American plum borer – 2nd flight peak || 2290 ± 285 || 1-Aug ± 8 days
OFM – 2nd flight ending || 2044* ± 233* || 31-Jul ± 7 days
ERM Sample – 7.5 mites/leaf || 1-Aug"
Cherry fruit fly traps in || 1-Aug
San Jose scale – 2nd flight peak || 2312 ± 174 || 3-Aug ± 9 days
Apple maggot – peak flight || 2394 ± 247 || 6-Aug ± 10 days
Codling moth – 2nd flight peak || 2327 ± 349 || 6-Aug ± 13 days
RBLR – 2nd flight ending || 2419 ± 273 || 7-Aug ± 10 days
STLM – 3rd flight starting || 2420 ± 196 || 6-Aug ± 7 days
Comstock mealybug – 2nd gen. crawlers emerging || 2429 ± 195 || 8-Aug ± 12 days
OBLR –2nd flight starting || 2413 ± 201 || 7-Aug ± 9 days
OFM – 3rd flight starting || 2275* ± 290* || 9-Aug ± 9 days
Lesser appleworm – 2nd flight peak || 2607 ± 463 || 15-Aug ± 23 days
RBLR – 3rd flight starting || 2715 ± 214 || 19-Aug ± 10 days
STLM – 3rd flight peak || 2755 ± 222 || 19-Aug ± 9 days
OFM – 3rd flight peak || 2625* ± 137* || 27-Aug ± 12 days
*Base temperature for OFM 45F
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Apple Tree Decline Survey
Apple decline research is hindered by an incomplete understanding of where it is occurring and what its symptoms look like on different rootstock/scion combinations. Please consider taking this survey, even if you haven't observed apple decline in your orchard blocks! Your participation will help drive research focus in the right direction and aid in the creation of informative extension documents.
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