Work

Insecticidal Activity of Four Essential Oils against Diamondback Moth, Plutella xylostella Linnaeus (Lepidoptera: Pyralidae)

Year: 2016

Type: article

Abstract: Essential oils from the leaves of Lantana camara (Linnaeus) and Coleus amboinicus (Loureiro), and rhizomes of Alpinia pyramidata (Blume) and Curcuma 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 of the diamondback moth, Plutella xylostella (Linnaeus). Among the four essential oils, Cu. longa was the most toxic to the diamondback moth. It was applied topically (LD50 = 32.98 μg g-1) and through LRFM (LC50 = 118.23 ppm) and provided the highest repellency at 250 ppm. Co. amboinicus ranked second in topical toxicity (LD50 = 34.71 μg g-1) 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.

Source: The Philippine Agricultural Scientist

DOI: 10.62550/aj156163

Authors: Abigaile Mia Javier, Virginia Ocampo, Flor Ceballo, Pio Javier

Institution: University of the Philippines Los Baños

Language: English

Topic: Insect Pest Control Strategies

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: bronze

Funders: University of the Philippines, Science Education Institute, Department of Science and Technology, Republic of the Philippines, Division of Human Resource Development