Asian citrus psyllid (ACP), Diaphorina citri Kuwayama, vectors the bacterial pathogen that causes citrus greening disease. Therefore, timely reduction in ACP populations is key to reducing spread of greening in citrus crops. The highest labeled rate (33lbs per acre) of aldicarb 15% (Temik 15G) and reduced rates (16.5 lbs and 8.25 lbs per acre) were evaluated for their impact on ACP infestations in 2006. The high rate was most effective in reducing the density of ACP as assessed by the proportion of citrus flush infested with eggs and nymphs, numbers of these per flush and adult number estimated by a tap sample method. Another study in 2006 demonstrated that application on the one side (bed side) of the trees was as effective as the application on both sides (bed and swale). Application of 33 lbs/ac in about 30 days prior to spring flush in Jan. 2007 was most effective compared with applications in Nov. or Feb. Reductions in psyllid populations were detectable for over five months. No impact of Temik was observed on populations of ladybeetles known to be responsible for high levels of predation on ACP.