Attraction-Mediated Synergy: Insecticide Toxicity Against <i>Coptotermes formosanus</i> Enhanced by <i>Trichoderma</i> Metabolites.

ABSTRACT: Previous studies have demonstrated that Trichoderma metabolites triggered aggregation behavior in Coptotermes formosanus (Blattodea: Rhinotermitidae). Building on this, the present work systematically evaluated the behavioral effects of three specific Trichoderma metabolites-phenol, ethyl 2,4-dioxovalerate, and diglycolic acid-and their synergistic interactions with insecticides. We hypothesized that these metabolites attract C. formosanus through multiple behavioral mechanisms and enhance the toxicity of insecticides. Bioactivity showed that ethyl 2,4-dioxovalerate and diglycolic acid exhibited no significant toxicity. Phenol (5 × 10^-2 to 5 µg/cm) and ethyl 2,4-dioxovalerate (5 × 10^-1 µg/cm) elicited trail-following behavior. In the no-cho

SUBMITTER: Siddika A 

PROVIDER: S-EPMC12653544 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature