Figure 1. Infestation and colonization with T. infestans and interventions performed during the 35-month follow-up.

Pampa del Indio, 2007–2010. Numbers above bars indicate number of houses inspected for infestation. The bold arrow indicates the initial community-wide insecticide spraying; thin full arrows indicate selective sprays with pyrethroid insecticides (either infested sites or infested house compounds), and thin dashed arrows indicate selective sprays with malathion of infested house compounds.