Fumigant toxicity of volatile natural products from Korean spices and medicinal plants towards the rice weevil, Sitophilus oryzae (L)

Sung Eun Lee, Byoung Ho Lee, Won Sik Choi, Byeoung Soo Park, Jeong-Gyu Kim, Bruce C. Campbell

Research output: Contribution to journalArticle

138 Citations (Scopus)

Abstract

The fumigant toxicity of various volatile constituents of essential oils extracted from sixteen Korean spices and medicinal plants towards the rice weevil, Sitophilus oryzae L (Coleoptera: Curculionidae), was determined. The most potent toxicity was found in the essential oil from Mentha arvensis L var piperascens (LC50 = 45.5 μl litre-1 air). GC-MS analysis of essential oil from M arvensis showed it to be rich in menthol (63.2%), menthone (13.1%) and limonene (1.5%), followed in abundance by β-pinene (0.7%), α-pinene (0.6%) and linalool (0.2%). Treatment of S oryzae with each of these terpenes showed menthone to be most active (LC50 = 12.7 μl litre-1 air) followed by linalool (LC50 = 39.2 μl litre-1 air) and α-pinene (LC50 = 54.9 μl litre-1 air). Studies on inhibition of acetylcholinesterase activity of S oryzae showed menthone to have a nine-fold lower inhibitory effect than menthol, despite menthone being 8.1-fold more toxic than menthol to the rice weevil. Different modes of toxicity of these monoterpenes towards S oryzae are discussed.

Original languageEnglish
Pages (from-to)548-553
Number of pages6
JournalPest Management Science
Volume57
Issue number6
DOIs
Publication statusPublished - 2001 Jun 18
Externally publishedYes

Fingerprint

menthone
Sitophilus oryzae
fumigants
spices
lethal concentration 50
menthol
medicinal plants
Oryza
toxicity
air
essential oils
linalool
Mentha arvensis
acetylcholinesterase
monoterpenoids
terpenoids
Curculionidae
Coleoptera

Keywords

  • Acetylcholinesterase inhibition
  • Essential oils
  • Fumigant toxicity
  • Mentha arvensis
  • Menthol
  • Menthone
  • Rice weevil
  • Sitophilus oryzae

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Insect Science

Cite this

Fumigant toxicity of volatile natural products from Korean spices and medicinal plants towards the rice weevil, Sitophilus oryzae (L). / Lee, Sung Eun; Lee, Byoung Ho; Choi, Won Sik; Park, Byeoung Soo; Kim, Jeong-Gyu; Campbell, Bruce C.

In: Pest Management Science, Vol. 57, No. 6, 18.06.2001, p. 548-553.

Research output: Contribution to journalArticle

Lee, Sung Eun ; Lee, Byoung Ho ; Choi, Won Sik ; Park, Byeoung Soo ; Kim, Jeong-Gyu ; Campbell, Bruce C. / Fumigant toxicity of volatile natural products from Korean spices and medicinal plants towards the rice weevil, Sitophilus oryzae (L). In: Pest Management Science. 2001 ; Vol. 57, No. 6. pp. 548-553.
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