Original ResearchPublished 6 October 2026Field efficacy of Tephrosia vogelii leaf extracts against Aphis fabae Scopoli (Hemiptera: aphididae) on common bean (Phaseolus vulgaris)Dominick Stephen Nana · Paulo John Lyimo · Ramadhani Omari MajubwaFrontiers in Agronomydoi 10.3389/fagro.2026.1900866