Abstract
This dissertation explores the chemical ecology, behavior, and reproductive biology of the sugar beet root maggot, Tetanops myopaeformis (von Röder) (Diptera: Ulidiidae), to develop robust integrated pest management strategies. Laboratory investigations revealed that female body mass positively correlates with fecundity, while females exhibited front-loaded reproduction with maximum fertility in initial oviposition batches. The preoviposition period was approximately three days, with females significantly outliving males. Field experiments established updated action thresholds using pheromone-baited traps (143-197 cumulative flies) and non-pheromone traps (90-162 cumulative flies). Black traps consistently captured significantly more female flies compared to other colors across multiple locations and years. Integration of bucket traps with extended-release pheromone lures provided sustained female attraction. Field trials demonstrated that pheromone-baited black bucket traps for mass trapping provided yield protection comparable to or superior to conventional aldicarb treatments, significantly improving clean yield and extractable recoverable sucrose across multiple sites while capturing 5-9 times more females than males. This research enhances understanding of T. myopaeformis reproductive biology, establishes evidence-based monitoring thresholds, and demonstrates the efficacy of pheromone-based mass trapping as a potential sustainable alternative to chemical insecticides for managing this pest in commercial sugar beet production. This work provides actionable recommendations for sugar beet growers and lays the groundwork for future studies on sustainable pest management.