30 June 2026 - Remote Sensing in Orchards with Dr. Katie Gold, Summer Diseases & Cornell Fruit Field Day

State of the State

Phenology & DDs for NY NEWA Stations from 1/1 – 6/29

Station || DD 43F || DD 43 Forecast Through 7/7 ||

Geneva (AgriTech Crittenden) || 1616 || 1848

Highland (HVRL) || 1799 || 2043

Clifton Park || 1602 || 1828

Peru (Forrence) || 1360 || 1593

Medina (Roberts) - Inland || 1512 || 1744

Appleton North - Lake || 1342 || 1562

Fairville (The Apple Shed) - Inland || 1546 || 1778

Williamson (DeMarree) - Lake || 1458 || 1673

*all DDs Baskerville-Emin, B.E

Upcoming Pest Events (Reference: Table 7.1.4 Tree Fruit Guidelines)

ERM Sample – 2.5 mites/leaf || 1-Jun

OBLR traps set out || 1-Jun

Black stem borer – 1st flight peak || 681 ± 170 || 383 ± 122 || 1-Jun ± 9 days

RBLR – 1st flight ending || 753 ± 140 || 448 ± 105 || 2-Jun ± 8 days

American plum borer – 1st flight peak || 784 ± 183 || 457 ± 128 || 3-Jun ± 9 days

Codling moth – 1st flight peak || 768 ± 206 || 442 ± 134 || 3-Jun ± 12 days

STLM – 1st flight ending || 813 ± 128 || 475 ± 94 || 5-Jun ± 9 days

OBLR – 1st adult catch || 884 ± 90 || 523 ± 62 || 9-Jun ± 6 days

OFM – 1st flight ending || 825* ± 126* || 576 ± 97 || 12-Jun ± 8 days

Peachtree borer – 1st adult catch || 1032 ± 266 || 619 ± 182 || 15-Jun ± 11 days

San Jose scale – 1st flight ending || 1039 ± 182 || 632 ± 125 || 16-Jun ± 8 days

Black stem borer – 1st flight ending || 1056 ± 198 || 636 ± 154 || 19-Jun ± 9 days

STLM – 2nd gen. 1st adult catch || 1063 ± 91 || 648 ± 74 || 16-Jun ± 6 days

San Jose scale – 1st crawlers observed || 1124 ± 91 || 688 ± 69 || 19-Jun ± 8 days

Dogwood borer – 1st adult catch || 964 ± 230 || 571 ± 151 || 12-Jun ± 9 days

American plum borer – 1st flight ending || 1344 ± 144 || 856 ± 111 || 29-Jun ± 7 days

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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* || 856 ± 106 || 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 || 866 ± 135 || 29-Jun ± 6 days

AM – 1st catch || 1509 ± 285 || 973 ± 206 || 4-Jul ± 12 days

Lesser peachtree borer – peak catch || 1234 ± 470 || 785 ± 338 || 25-Jun ± 19 days

STLM – 2nd flight peak || 1563 ± 207 || 1011 ± 163 || 6-Jul ± 8 days

Codling moth – 1st flight ending || 1557 ± 262 || 1011 ± 187 || 6-Jul ± 12 days

Peachtree borer – peak catch || 1579 ± 465 || 1036 ± 353 || 7-Jul ± 19 days

Lesser appleworm – 2nd flight starting || 1768 ± 339 || 1165 ± 240 || 14-Jul ± 12 days

OFM – 2nd flight peak || 1450* ± 147* || 1115 ± 190 || 11-Jul ± 9 days

American plum borer – 2nd flight starting || 1850 ± 290 || 1231 ± 203 || 16-Jul ± 11 days

RBLR – 2nd flight peak || 1721 ± 232 || 1129 ± 176 || 13-Jul ± 7 days

San Jose scale – 2nd flight starting || 1804 ± 170 || 1199 ± 136 || 15-Jul ± 8 days

Codling moth – 2nd flight starting || 1887 ± 313 || 1251 ± 223 || 20-Jul ± 13 days

Dogwood borer – peak catch || 1611 ± 226 || 1040 ± 172 || 8-Jul ± 10 days

STLM – 2nd flight ending || 2167 ± 177 || 1466 ± 151 || 28 Jul ± 8 days

American plum borer – 2nd flight peak || 2290 ± 285 || 1564 ± 213 || 1-Aug ± 8 days

OFM – 2nd flight ending || 2044* ± 233* || 1545 ± 195 || 31-Jul ± 7 days

Monitoring Network Blog Sites

NY Tree Fruit Pest Monitoring Network Blog

https://blogs.cornell.edu/treefruitpests/

NY Berry Pest Monitoring Network Bloghttps://blogs.cornell.edu/berrypests/

Scouting and Monitoring Resources

Video: Apple Insect Targets and IPM Practices (including explanations of Degree Day calculations), https://youtu.be/NwyBAcvbpUs

Quick Guide for Apple Insect Pests https://help.nysipm.org/hc/en-us/articles/23290226665751-NEWA-Quick-Guide-for-Apple-Insect-Pests

Virtual Orchard Scout Training webinar recording on the Cornell IPM YouTube channel

https://www.youtube.com/watch?v=OtyOWCL1Q2A

Apple IPM Intensive Workshop playlist https://www.youtube.com/playlist?list=PLoNb8lODb49vifrm9Tla4GmAVhlIL0527