Data Report – June 12th

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  • The table below shows trap counts from vegetable fields and a research farm within the Willamette Valley, OR. through June 11th, 2026.
  • ** Black cutworm and corn earworm counts are both above normal – view full report (.pdf below) for details.
  • Additional monitoring sites are being added – please contact me if you have brassica fields.
jessica.green[at]oregonstate[dot]edu
VNREPORT_2026.1Download
scatterplot graph of BCW activity 2024 and 2025
2024 and 2025 black cutworm activity never exceeded 0.6 moths per day, whereas we are seeing 4+/day already this year. Field scouting is recommended and at-plant precautions may be necessary.
The pest forecast for black cutworm is based on a new, regionally validated degree-day model, and confirms that migratory moth arrival is on schedule, with potential for egg-laying in select counties. Learn more at beav.es/OPMN.

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