Lettuce Aphid on Desert Lettuce -2024

Abstract

Lettuce aphid (Nasonovia ribisnigri) remains a persistent pest in desert lettuce production, with the ability to rapidly reproduce and cause significant economic losses, especially in organic systems. Unlike other aphid species, lettuce aphids colonize deep within the plant, making them difficult to detect and control. This article reviews the seasonal biology, economic impact, and efficacy of insecticide strategies. Systemic insecticides like spirotetramat and combination products such as Senstar are most effective, while older chemistries and biopesticides offer limited control. Early detection and timely intervention are critical to minimizing market contamination.