Weekly Report 5/13/24

Each week we’ll provide a short summary of trap captures and pest activity in orchards from across NY State. Look for more detail and regionally specific management recommendations from your local CCE and regional teams.

Across the state phenology and degree days continue to be near 15 and 30 year averages (Hudson Valley and Northeastern NY) or 1-2 weeks ahead of averages (Western NY), according to regional specialists’ updates and the Climate Smart Farming Tool Degree Day Calculator created by Cornell.

This week’s updates includes reports of Oriental Fruit Moth (OFM) and Codling Moth (CM). Biofixes have been set at the two research stations were data are being reported (Highland-HVRL and Geneva-Cornell AgriTech).

In addition to these pests, we’ve started to observe Plum Curculio ovipositioning scars on stone fruit and pome fruit in the Hudson Valley and Western NY. Obliquebanded leafroller (OBLR) captures were reported in Washington County this week, but have not yet been reported in any other regions.

Oriental Fruit Moth (OFM)

Trap captures have been recorded for OFM in most regions in NY, and the biofix has been set in many location. The biofix is set after sustained trap capture is recorded (at least two consecutive weeks of trap captures). Use the initial date of these first two weeks in a row for the biofix in the NEWA model. The biofix for both research stations has been set. In a few other locations biofix has been set, although others few or zero captures have been reported, emphasizing the importance of site-specific monitoring and management decisions.

• Geneva-AgriTech – First capture: April 29 & Sustained Capture: May 6
• Highland-HVRL – First capture: April 22 & Sustained Capture: April 29

Codling Moth (CM)

Trap captures are beginning to be recorded in many locations across NY. The biofix was set at both research stations where data is being collected. In many other locations CM has not yet been captured and/or sustained capture has not been reached. The biofix for this insect is also the first sustained trap capture, and the first trap capture in the two consecutive weeks should be used in the NEWA model.

• Geneva-AgriTech – First capture: May 6 & Sustained Capture: May 13
• Highland-HVRL – First capture: May 6 & Sustained Capture: May 13

Obliquebanded Leafroller (OBLR)

First captures were reported in Washington County this week, but no other captures have been reported throughout the state. As we approach petal fall in many locations, it is a good time to be thinking about putting out traps for this insect.

Data for OFM and CM for all locations reporting data are shared below, thank you to all participating collaborators! In addition, tables for degree day accumulations in the season to date are shared.  Upcoming phenology and pest events are also reported, based on Table 7.1.4 from the Cornell Tree Fruit Guidelines.

Oriental Fruit Moth (OFM) Captures per week

Codling Moth (CM) Trap Captures per Week

Phenology & Degree Day Accumulations for NY NEWA Stations from 1/1 -5/13

Upcoming Phenology & Pest Events

Reference: Table 7.1.4. Degree-day accumulations (from Jan. 1) corresponding to selected fruit phenology and arthropod pest events. Cornell Tree Fruit Guidelines.