The graphs show the sticky card weekly whitefly counts for all 3 growers and the percentage of poinsettia plants each week that were found to have whitefly present (very rarely was there more than 1-2 whiteflies found per plant).

Grower C seemed to be following the same trend as Grower A with increasing numbers of adults being seen, but initially without significant reproduction. However, at about week 40, it started to become obvious that there was colonization taking place with increasing numbers of immatures starting to be seen. The biggest difference in this crop, compared to the other growers was a lower introduction rate, about one third that of the other two growers. The pesticide history of the cuttings is also unknown, but may have played a role in the lack of success.