## Competency Area 1: Integrated Pest Management (IPM)

### PO 7. Recognize how variables including the following are used to calsulate the economic injury level (EIL), and how the EIL changes with a change in any of the variables: A. Pest density/crop damage relationship B. Crop value C. Cost of control D. Effectiveness of control action

A. Pest density/crop damage relationship

B.
Crop value
Information needed:
Value (\$) per bushel, ton, salable unit, etc. = \$ _____
Expected yield (bu., ton, salable unit, etc.) per acre = _____
Calculation:
Value (\$) per salable unit x (Expected Yield / Acre) = crop value (\$) / acre

C. Cost of control
Estimate Control Cost (Primary + Secondary Costs)

Primary cost (Pesticide cost)
Information needed:
Pesticide use rate (lb., oz, etc.) / acre, i.e. ____(lb., oz, etc.)
Pesticide price / (lb., oz, etc.) \$ _____
Calculation:
Pesticide use rate (lb., oz, etc.) / acre, i.e. ____(lb., oz, etc.)
Pesticide price / (lb., oz, etc.) \$ _____ =
Pesticide cost / Acre, i.e. \$_____ / Acre
Secondary cost
Information needed:
Pesticide Application cost \$_____ / Acre
Primary Pesticide Cost + Secondary Cost = Total Pesticide Application Costs / acre
i.e. Total Control Cost \$ _____ / Acre
Calculate Maximum Allowable Crop Loss (%)
Total Control cost \$ ____ / Acre divided by Crop value \$____ / Acre =
Maximum allowable crop loss ____%

D. Effectiveness of control action

For information see: Performance Objective (2)