Abstract

TOXIC & REPELLENT ACTIVITY OF TAGETES ERECTA ESSENTIAL OIL BASED COMBINATORIAL FORMULATIONS ON INDIAN WHITE TERMITE ODONTOTERMES OBESUS

*Susheel Kumar and Ravi Kant Upadhyay

Abstract

In present investigation Tagetes erecta and its combinatorial formulations were evaluated to observe the anti-termite efficacy against Indian white termite Odontotermes obesus. These have shown very high termiticidal activity and repellency against present termite species. It was proved by very low LD50 values obtained i.e. B-AST-A 261.930 and S-AST-C 507.666 respectively. Tagetes erecta termiticidal potential was enhanced when other bio-material were added to them in a defined ratio. This synergistic action caused very high mortality in termites. Besides this, combinatorial mixtures significantly repelled termites in two Choice bioassays. These also have shown strong anti-feedant action in termite workers.

Keywords: Odontotermes obesus; Tagetes erecta; Combinatorial formulations, Toxicity; Repellency and Synergistic effects.