Larvicidal activity of Tagetes minuta (marigold) toward Aedes aegypti.
The steam distilled oils of 3 species of marigold, Tagetes patula, T. erecta and T. minuta, were tested for larvicidal activity toward third instar Aedes aegypti; activity at 10 ppm was demonstrated only for T. minuta. The larvicidal property of the whole oil dispersed in water persisted for at least 9 days. The terpene, ocimenone, which is a part of the whole oil, was found to be larvicidal only at a higher concentration than the whole oil and to lose its activity within 24 h after dispersal in water. These results suggest a potential utilization of oil of T. minuta or its components for the control of Ae. aegypti and other species of mosquitoes.
Green
M M
MM
Department of Chemistry, Polytechnic University, Brooklyn, NY 11201.
Singer
J M
JM
Sutherland
D J
DJ
Hibben
C R
CR
D000330:Aedes; D000818:Animals; D007306:Insecticides; D007814:Larva; D010938:Plant Oils
D007306:Insecticides; D010938:Plant Oils