This week's topics: Season Long Woolly Apple Aphid Management, Apple Scab Projections, Blossom Blight Management, and our State of the State Update!
Historical Phenology and Average Degree Day Accumulation Base 43 (for 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
Petal fall (McIntosh) || 479 ± 42 || 18-May ± 6 days
Phenology & DDs for NY NEWA Stations from 1/1 - 4/21
Station || Stage || DD 43F || DD 50F ||
Geneva (AgriTech North) || Pink || 219 || 90
Highland (HVRL) || Pink || 282 || 134
Clifton Park || 1/2" Green || 206 || 95
Peru (Forrence) || Green Tip || 164 || 99
Medina - Inland || Tight Cluster || 203 || 80
Appleton North - Lake || Tight Cluster || 168 || 79
Fairville (The Apple Shed) - Inland || Tight Cluster || 214 || 100
Williamson (DeMarree) - Lake || Tight Cluster || 201 || 95
*all DDs Baskerville-Emin, B.E
Upcoming Pest Events
Pest/Phenology Event || DD Base 43˚F || Approx. Date
Rosy apple aphid – 1st nymphs present || 189 ± 55 || 86 ± 30 || 25-Apr ± 7 days
STLM – 1st adult catch || 168 ± 48 || 73 ± 28 || 20-Apr ± 9 days
STLM – 1st egg observed || 208 ± 65 || 94 ± 36 || 27-Apr ± 5 days
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Tight cluster (McIntosh) || 228 ± 27 || 105 ± 19 || 27-Apr ± 7 days
Tarnished plant bug – 1st observed || 222 ± 105 || 105 ± 62 || 25-Apr ± 15 days
OBLR – 1st overwintered larvae observed || 236 ± 78 || 112 ± 48 || 29-Apr ± 7 days
Black stem borer – 1st adult catch || 283 ± 50 || 137 ± 40 || 6-May ± 3 days
European red mite – egg hatch observed || 284 ± 53 || 134 ± 34 || 6-May ± 4 days
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Pink (McIntosh) || 289 ± 26 || 139 ± 21 || 3-May ± 7 days
Oriental fruit moth – 1st adult catch || 229* ± 44* || 126 ± 33 || 2-May ± 8 days
RBLR – 1st flight peak || 303 ± 75 || 150 ± 48 || 4-May ± 9 days
STLM – 1st flight peak || 337 ± 71 || 168 ± 45 || 7-May ± 8 days
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Full bloom (McIntosh) || 378 ± 35 || 192 ± 25 || 10-May ± 6 days
"OBLR Overwintered Gen. Sample
Codling Moth Traps set out
*Base temperature for OFM 45F
Sprayer Calibration Videos
Jason Deveau, Sprayers101 https://sprayers101.com/articles/boom-sprayers/calibration/
Andrew Landers Part I https://www.youtube.com/watch?v=6izHj0GF1rY
Andrew Landers Part II https://www.youtube.com/watch?v=eAfEIjwg5HI
Weather
Northeast Regional Climate Change Monthly Maps
https://www.nrcc.cornell.edu/regional/monthly/monthly.html
NOAA Climate Prediction Center (forecasts and outlooks)
https://www.cpc.ncep.noaa.gov/products/forecasts/
NEWA and Pest Forecasting
NEWA Help Desk Frequently Asked Questions
NEWA Help Desk Apple Insect, Disease, and Crop Management Forecasts
Quick Guide for Apple Insect Pests https://help.nysipm.org/hc/en-us/articles/23290226665751-NEWA-Quick-Guide-for-Apple-Insect-Pests
Apple IPM Intensive Workshop playlist: https://www.youtube.com/playlist?list=PLoNb8lODb49vifrm9Tla4GmAVhlIL0527
Apple Insect Targets and IPM Practices (including explanations of Degree Day calculations): https://youtu.be/NwyBAcvbpUs
NY Tree Fruit Pest Monitoring Network
https://blogs.cornell.edu/treefruitpests/
Interested in collaborating and contributing trap capture data? Contact Anna Wallis aew232@cornell.edu
Virtual Orchard Scout Training webinar recording on the New York State Integrated Pest Management Program (NYSIPM) YouTube channel.
https://www.youtube.com/watch?v=OtyOWCL1Q2A
Online Course, BF224: Tree Fruit Scouting.
https://smallfarmcourses.com/p/bf-224-tree-fruit-scouting
Cold Temperature and Frost Risk
Picture Table of Critical Spring Temperatures for Tree Fruit Bud Development Stages https://www.canr.msu.edu/resources/picture-table-critical-spring-temperatures-for-tree-fruit-bud-development-stages
