Two things must be balanced when deciding whether to apply pesticide: the cost of control and the value of the commodity that will be saved. Action thresholds are commonly used in field crop entomology, and are defined as the pest density at which chemical controls should be applied. Action thresholds are generally meant to be dynamic based on crop market value and ever-changing control costs.
Iowa State University
Hodgson, Erin W. and Tollefson, Jon J., "Dynamic Black Cutworm Action Threshold" (2009). Integrated Crop Management News. 653.
The Iowa State University Digital Repository provides access to Integrated Crop Management News for historical purposes only. Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user. Users should make their own assessment of the information and whether it is suitable for their intended purpose. For current information on integrated crop management from Iowa State University Extension and Outreach, please visit https://crops.extension.iastate.edu/.