Pesticidal and insecticidal effect of campsis grandiflora (thumb.)

ABSTRACT

Campsis grandiflora (Thunb.); the Indian trumpet creeper; is commonly grown for ornament. In the present study; the aqueous extract of the leaves of the climber was evaluated for its pesticidal and insecticidal activities. A direct relationship was observed between the dose and the percentage larval mortality. Dosage values as expressed in log terms were; 1.398; 1.301; 1.230; 1.176 and 1.079 for 0.25; 0.20; 0.17; 0.15 and 0.12 ppm dose concentrations; respectively. For the insecticidal study; the percentage insect mortality was found to increase with the corresponding increase in dosage; indicating a direct relationship between the two. Highest insect mortality of 80