Insecticidal activity of four essential oils against diamondback moth, Plutella xylostella Linnaeus (Lepidoptera: Pyralidae)
2016
Javier, A.M.V. | Ocampo, V.R. | Ceballo, F.A. | Javier, P.A.
Essential oils from the leaves of Lantana camara (Linnaeus) and Coleus amboinicus (Loureiro), and rhizomes of Alpinia pyramidata (Blume) and Corcuma longa (Linnaeus)were evaluated for their contact toxicity through the topical method and the leaf residue film method (LRFM); antifeedant activity and repellency through LRFM; and growth, regulatory activity through topical application against second instar larvae at the diamondback moth.It was applied topically (LD sub 50 = 32.98 mug/g) and through LRFM (LC sub 50 = 118.23 ppm) and provided the highest repellency at 250 ppm. Coleus amboinicus ranked second in topical toxicity (LD sub 50 = 34.71 mug/g) and also showed remarkable insect growth regulatory activity expressed in high larval mortality and high abnormality among the pupae and adults produced. Only A. pyramidata provided the highest antifeedant activity at 125 ppm.
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by University of the Philippines at Los Baños