Assessing the Role of Mineral Oils in Altering Reproductive Dynamics and Development of Myzus persicae (Sulzer)

Abstract

This research examines how varying concentrations of four mineral oils—Servo, Orchol, Agrospel, and Arbofine—affect the reproductive traits and developmental timing of the green peach aphid, Myzus persicae. Adult parthenogenetic aphids were exposed to leaves treated with these oils, and key biological metrics, including nymphal duration, reproductive phases, fecundity, and adult lifespan were measured across ten replicates under controlled conditions. Findings indicate that treatments with Servo and Arbofine typically accelerated development by reducing pre-reproductive and nymphal durations while prolonging the reproductive period, increasing fecundity, and lengthening adult longevity, suggesting a promotive effect on aphid growth and reproduction. Orchol caused modest increases in fecundity and reproductive duration, with minimal impact on longevity and development. Conversely, Agrospel delayed maturation by extending pre-reproductive and nymphal stages and reduced reproductive phase length, fecundity, and adult lifespan. These distinct effects on aphid life history traits are important for understanding population dynamics and designing targeted pest control strategies.