%0 Journal Article
%T Formulation Determines Whether Botanical Insecticides Survive the Journey from Active Chemistry to Environmentally Effective Pest Control
%A Laura Keller
%A Thomas Lehmann
%A Simon Brunner
%A Christoph Meier
%J Entomology and Applied Science Letters
%@ 2349-2864
%D 2025
%V 12
%N 4
%R 10.51847/ooIat1IYIU
%P 68-79
%X Botanical insecticides are often advanced on the strength of chemically characterized plant extracts, essential oils, or purified constituents that demonstrate insecticidal, repellent, antifeedant, or development-disrupting activity under controlled conditions. However, active-ingredient potency does not determine whether an applied product will remain chemically intact, disperse predictably, reach the intended biological interface, withstand environmental stress, and maintain a useful exposure profile without creating disproportionate non-target risk. This design article addresses the resulting gap between active-chemistry discovery and environmentally effective pest control by developing an evidence-grounded, explicitly non-validated formulation-by-design approach. The analysis integrates botanical-source variability, chemical identity, solubility, volatility, chemical stability, encapsulation, carrier function, controlled release, deposit formation, target exposure, environmental fate, and non-target effects. The synthesis indicates that formulation should be treated as an exposure architecture rather than as a late-stage product adjustment. Encapsulation may protect a payload but does not establish its bioavailable delivery; longer persistence may extend control but does not establish environmental safety; and storage stability does not predict robustness after dilution, spraying, deposition, weathering, or biological contact. Evidence remains constrained by heterogeneous botanical materials, formulation methods, target species, exposure routes, endpoints, and laboratory conditions, with relatively limited integration of chemical mass balance, deposit behavior, ecological exposure, and field-relevant stress testing. The principal implication is that botanical insecticide development should begin with a defined product identity and a diagnosed delivery failure, followed by formulation choices linked to explicit mechanisms, boundary conditions, safety requirements, and prospective validation tests. This approach reframes formulation as the process that determines whether promising chemistry survives the complete journey to justified pest-control use.
%U https://easletters.com/article/formulation-determines-whether-botanical-insecticides-survive-the-journey-from-active-chemistry-to-e-5u4gojsz8fjmmrd