The use of precision agriculture has increased in popularity as growers seek ways to reduce input costs in production systems. The classification of plant biomass zones through NDVI imagery has enabled growers to make variable rate applications and decrease inputs. However, several questions remain unanswered regarding the use of this technology. Questions relating to the absence of physiological differences between zones have generated concern regarding the usefulness of NDVI imagery. This paper evaluates the potential of season-long COTMAN data within zones as a way to quantify physiological differences between zones. This paper also addresses the use of NDVI imagery for plant bug management and defoliation.