Absolute yields expressed as kg of soluble solids per hectare (mean ± SE) in each of the four treatments tested (monthly calendar insecticide applications ‘calendar’, insecticide applications based on a nominal threshold of 0.2 adults per stem tap ‘0.2 thsld’, applications based on a nominal threshold of 0.7 adults per stem tap ‘0.7 thsld’, and no insecticide applications to control ACP ‘no insecticide’) in two commercial citrus groves during 2010–11, 2011–12, 2012–13 and 2013–14 seasons.

Harvest of the ‘Earlygold’ variety occurred during the first year of the season (Site 1) and of ‘Valencia’ in the second year of the season (Site 2). Values marked in bold indicate significant treatment effects for that particular season and grove. Mean yields for treatments followed by the same letter within a particular year are not significantly different (LSD Means: P <0.05).