Document Detail

Insecticidal activity of selected monoterpenoids and rosemary oil to Agriotes obscurus (Coleoptera: Elateridae).
MedLine Citation:
PMID:  16334324     Owner:  NLM     Status:  MEDLINE    
Acute toxicities of three naturally occurring monoterpenoid essential oil constituents and the essential oil of rosemary were tested against late instars of Agriotes obscurus (L.) (Coleoptera: Elateridae). Both contact and volatile toxicities of thymol, citronellal, eugenol, and rosemary oil were determined. Also, phytotoxicity of these compounds was evaluated on corn germination and seedling development. Thymol had the greatest contact toxicity (LD50 = 196.0 microg/larva), whereas citronellal and eugenol were less toxic (LD50 = 404.9 and 516.5 microg/larva, respectively). Rosemary oil did not show any significant contact toxicity, even at 1,600 microg/larva. In terms of volatile toxicity, citronellal was the most toxic to wireworm larvae (LC50 = 6.3 microg/cm3) followed by rosemary oil (LC50 = 15.9 microg/cm3), thymol (LC50 = 17.1 microg/cm3), and eugenol (LC50 = 20.9 microg/cm3). Thymol, eugenol, and citronellal significantly inhibited corn seed germination and development, whereas rosemary oil had only minimal phytotoxic effects.
Ranil Waliwitiya; Murray B Isman; Robert S Vernon; Andrew Riseman
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of economic entomology     Volume:  98     ISSN:  0022-0493     ISO Abbreviation:  J. Econ. Entomol.     Publication Date:  2005 Oct 
Date Detail:
Created Date:  2005-12-07     Completed Date:  2006-02-08     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2985127R     Medline TA:  J Econ Entomol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1560-5     Citation Subset:  IM    
Faculty of Land and Food Systems, University of British Columbia, 2357 Main Mall, Vancouver, BC, Canada V6T 1Z4.
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MeSH Terms
Monoterpenes* / toxicity
Oils, Volatile* / toxicity
Rosmarinus* / toxicity
Zea mays / drug effects
Reg. No./Substance:
0/Insecticides; 0/Monoterpenes; 0/Oils, Volatile; 8000-25-7/rosemary oil; 89-83-8/Thymol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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