8 April 2025

Historical Phenology and Average Degree Day Accumulation Base 43 (for reference) - Silver Tip (McIntosh) || 58-106 - Green Tip (McIntosh) || 99-144 - Half Inch Green (McIntosh) || 150-201 - Tight Cluster (McIntosh) || 206-257 Phenology & DDs for NY NEWA Stations from 1/1 - 4/7 Station || Stage || DD 43F || DD 50F || Geneva (AgriTech North) || Green Tip || 151 || 64 Highland (HVRL) || Early TC || 186 || 76 Clifton Park || Green Tip || 125 || 53 Peru (Forrence) || Silver Tip || 103 || 47 Medina - Inland || First Green || 138 || 65 Appleton North - Lake || First Green || 105 || 48 Fairville (The Apple Shed) - Inland || First Green || 147 || 65 Williamson (DeMarree) - Lake || First Green || 136 || 61 *all DDs Baskerville-Emin, B.E ----------------------------------------------------------------- Upcoming Pest Events Pest/Phenology Event || DD Base 43˚F || Approx. Date STLM Traps set out || 1-Apr Pear psylla – egg laying || 84 ± 44 || 33 ± 21 || 4-Apr ± 11 days RBLR – 1st catch || 144 ± 32 || 60 ± 20 || 17-Apr ± 9 days 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 --------------------------------------------------------------- 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 ------------------------------------------------------------------ Pink (McIntosh) || 289 ± 26 || 139 ± 21 || 3-May ± 7 days *Base temperature for OFM 45F Sprayer Calibration Videos Jason Deveau, Sprayers101 Andrew Landers Part I Andrew Landers Part II Weather Northeast Regional Climate Change Monthly Maps NOAA Climate Prediction Center (forecasts and outlooks) 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 Apple IPM Intensive Workshop playlist Apple Insect Targets and IPM Practices NY Tree Fruit Pest Monitoring Network Interested in collaborating and contributing trap capture data? Contact Anna Wallis [email protected] Virtual Orchard Scout Training webinar Online Course, BF224: Tree Fruit Scouting. Cold Temperature and Frost Risk Picture Table of Critical Spring Temperatures for Tree Fruit Bud Development Stages Regional Weather Events page for NEWA weather stations, Cornell Statewide Frost Protection webinar