Western Bean Cutworm Moth Flight Much Lower This Season

Although some other states in the US corn belt, and in Ontario, Canada are seeing higher moth flights, Indiana, like last year, is a “have-not” state for WBC this year. Thanks to our network of pheromone trap cooperators throughout the state, we were able to assess the flight of western bean cutworm moths the last seven weeks. As you can see from the graph below, this year’s numbers are a mimic of last year, though the peak period of mid-July remained relatively consistent. The accompanying good news is that larval damage reports, so far, have been nil. The reasons why are unclear – the moths overwinter as pre-pupae, and our winter was not atypically cold. But the trend of low damage (regardless of trap catch) across Indiana persists, and this is the good news here.

Hopefully we can convince the trappers to again monitor for this pest next season, to determine if this decline is a continual trend!


western bean cutworm moth captures (avg/trap) 2017-2022

Share This Article
It is the policy of the Purdue University that all persons have equal opportunity and access to its educational programs, services, activities, and facilities without regard to race, religion, color, sex, age, national origin or ancestry, marital status, parental status, sexual orientation, disability or status as a veteran. Purdue is an Affirmative Action Institution. This material may be available in alternative formats. 1-888-EXT-INFO Disclaimer: Reference to products in this publication is not intended to be an endorsement to the exclusion of others which may have similar uses. Any person using products listed in this publication assumes full responsibility for their use in accordance with current directions of the manufacturer.
Pest&Crop newsletter - Department of Entomology Purdue University 901 Mitch Daniels Blvd West Lafayette, IN 47907

© 2024 Purdue University | An equal access/equal opportunity university | Copyright Complaints | Maintained by Pest&Crop newsletter

If you have trouble accessing this page because of a disability, please contact Pest&Crop newsletter at luck@purdue.edu.