Toxic, repellent, and deterrent effects of citronella essential oil on Bemisia tabaci (Hemiptera

Aleyrodidae) on chili plants

Khalid A. Saad, M. N. Mohamad Roff, Idris Abd. Ghani

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The sweetpotato whitefly, Bemisia tabaci (Gennadius), is a pest that causes direct damage to host plants and also vectors plant viruses. Chemical insecticides are not always effective management tools because this insect has developed resistance to a wide range of insecticides. An essential oil from citronella (Cymbopogon nardus L.) leaves was assessed in studies of contact-toxicity, repellency, and ovipositional deterrence against B. tabaci. Mortality of B. tabaci exposed to the essential oil increased with the concentration of the essential oil with the greatest mortality observed at the highest concentration (6.66 lL/L air) tested (survival was reduced 94.3% in comparison to control treatments). The median lethal concentration was 1.028 lL/L air. Furthermore, the essential oil was highly repellent against B. tabaci in a dual-choice bioassay, and it significantly deterred females from laying eggs on essential oil-treated chili (Capsicum annuum L.) leaves as compared to control leaves. Chemical analysis of the oil was characterized by high levels of oxygenated monoterpenes (56.28%).

Original languageEnglish
Pages (from-to)119-130
Number of pages12
JournalJournal of Entomological Science
Volume52
Issue number2
DOIs
Publication statusPublished - 1 Apr 2017

Fingerprint

Citronella
essential oil
Bemisia tabaci
repellents
Aleyrodidae
Hemiptera
essential oils
insecticide
insecticides
Cymbopogon nardus
leaves
mortality
air
whitefly
monoterpene
plant viruses
Capsicum annuum
monoterpenoids
chemical analysis
host plant

Keywords

  • Bemsia tabaci
  • Citronella
  • Deterrence
  • Essential oil
  • Repellency

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Agronomy and Crop Science
  • Insect Science

Cite this

Toxic, repellent, and deterrent effects of citronella essential oil on Bemisia tabaci (Hemiptera : Aleyrodidae) on chili plants. / Saad, Khalid A.; Mohamad Roff, M. N.; Abd. Ghani, Idris.

In: Journal of Entomological Science, Vol. 52, No. 2, 01.04.2017, p. 119-130.

Research output: Contribution to journalArticle

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