Pulegone-based insecticide with stereoisomer and species selectivity for novel pest control
A rational design approach to insecticide development leveraging pulegone, a monoterpene found in peppermint and pennyroyal essential oils. The platform combines chemical stereoisomer selectivity and organism species selectivity to improve safety and efficacy, while targeting a novel action site to avoid cross-resistance with existing commercial insecticides.
Overview
This research platform centers on pulegone, a naturally occurring monoterpene found in essential oils of plants such as catnip, peppermint, and pennyroyal. The team is developing pulegone-derived compounds as the basis for a new class of insecticides. The design principle integrates three pillars: chemical stereoisomer selectivity, organism species selectivity, and engagement of a novel action target. The first two address safety and efficacy, while the third is intended to circumvent cross-resistance with currently available commercial insecticides, a growing challenge in pest management.
The work is grounded in a data-driven rationale, with prior testing supporting interest in analog synthesis, structure-activity relationship studies, and action target elucidation. The pleasant odor profile of pulegone and its natural origin provide additional product differentiation opportunities for consumer- and agriculture-facing applications.
Technical specifications
Core design principles:
- Chemical stereoisomer selectivity to improve safety and efficacy profiles
- Organism species selectivity to target pest species while reducing impact on non-target organisms
- Novel action target to avoid cross-resistance with existing commercial insecticides
Research directions enabled by the platform:
- Analog synthesis of pulegone-derived compounds
- Structure-activity relationship studies to refine selectivity and potency
- Action target elucidation to characterize the novel mechanism
Source material characteristics:
- Pulegone consists of two stereoisomers
- Naturally abundant in essential oils of catnip, peppermint, and pennyroyal
- Pleasant odor profile similar to pennyroyal, peppermint, and camphor
Technology readiness level
The platform is at an early research stage. The hypothesis is supported by prior data submitted in a 2017 report (Grants4Targets 2017-01-018), and the team is seeking additional testing data to validate interest in analog synthesis, structure-activity studies, and target elucidation. Further biological testing, chemical optimization, and mechanism studies are required before advancement toward formulation and field validation.
About University of Hawaiʻi at Mānoa
The University of Hawaiʻi at Mānoa is the state’s flagship public research university, combining a comprehensive academic portfolio with a strong applied research culture. Industry engages through coastal and island field stations, engineering and test facilities, and an integrated medical school that partners with hospitals across Hawaiʻi to enable clinical translation. A dedicated research corporation and experienced sponsored programs staff streamline contracting, compliance, and rapid onboarding for complex, multi‑partner projects. Proximity to major Pacific defense commands, maritime ports, and trans‑Pacific air routes provides geographic advantages for prototyping and deployment. Research is supported by competitive federal funding from NSF, NIH, NOAA, NASA, and the Department of Defense, and a technology transfer office advances IP, licensing, and startup formation.
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