This pattern allows accurate estimation of insects, weeds and diseases that characteristically spread throughout the entire field. Pattern 2 is best described as a profile or side view of a field. Pattern 3 is perimeter sampling, and is useful for identifying insects, weeds and diseases that move in from other fields or appear on field edges first. All three patterns and the problems they identify are detailed in the ICPM Record Keeping instructions. Choose one or a combination of these patterns that best suits the field or pest problem.
Sample size is the most valuable time-saving tool for the scout.
Correct sampling of an area and accurate results records save time and increase the effectiveness of decisions. Use timely observations based on the current season, an effective sample size and templates from the ICPM Record Keeping system to gather practical records. In the next issue, we will discuss estimating yield potential and degree days. For a copy of the ICPM Record Keeping System, call the County Extension Office listed in your local phone directory.