Effective and Economical Psyllid Spray Programs

Abstract

Effective control of Asian citrus psyllid (ACP) has been a challenge for many Florida growers these last two years. Possible explanations include warmer, wetter weather in winter, fewer insecticide sprays being applied and a possible increase in insecticide resistance.

There is little doubt that weather-induced flush the last two winters has provided extra food and refuge for ACP. Furthermore, rain reduces residual insecticide persistence. Both these factors compromise critical dormant sprays.