Liriomyza Leafminer Management on Desert Melons

Abstract

Liriomyza leafminers, primarily L. sativae and L. trifolii, are significant pests in Arizona melon production, causing damage through larval mining and adult feeding punctures. This publication provides detailed identification, biology, and seasonal development of both species, emphasizing the importance of accurate monitoring and sampling. Effective management combines cultural, biological, and chemical strategies. Selective insecticides and conservation of parasitoids are essential for sustainable control. Multiple field-based thresholds and species-specific responses to insecticides are discussed to support informed decision-making and reduce economic damage in desert melon crops.