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Current trap counts through November 14th, 2019

    • All 10 remaining sites had moths detected this week (100%)
    • Some sites have very high populations, and we are investigating factors that may be contributing to that.
    • Larval activity (damage) could be evident within 2 weeks, as a result of these peaks in trap catch.
    • We expect counts to peak in late fall, but levels are much greater than they were in 2018.


    Numbers indicate adult true armyworm moths (Mythimna unipuncta) detected from pheromone traps placed throughout the region. Remember: larvae are the damaging phase and usually appear about  25 days after a spike in adult activity. However, this estimate can vary widely and depends on many factors (temperature, migration, natural enemies, pest management strategies, etc.). In fact, investigating the relationship between trap catches and damage in the field is a main objective of this research.

    For questions or more information, contact us (click here)
Trap counts have spiked in a few locations. The dotted line indicates max levels detected at any site (any time) in 2018.
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