Within the framework of finding new fumigants, less toxic and environmentally friendly, in comparison with conventional fumigants, natural products and essential oils are considered to be alternative sources of potentially active compounds. In this context, the aim of the present study was the chemical analysis and the evaluation of fumigant toxicity against the adults of rice weevil Sitophylus oryzae of sixteen essential oils obtained from fourteen plant species. The essential oils of the species Apium nodiflorum, Bupleurum fruticosum, Crithmum maritimum, Liquidambar orientalis and Laurus azorica consisted mainly of monoterpene hydrocarbons. Oxygenated monoterpenes were the prevailing group of compounds in the essential oils of Laurus nobilis, Myrtus communis, Salvia fruticosa S. pomifera subsp. calycina, S. officinalis and Thymbra capitata. The essential oils of Cotinus coggygria, S. microphylla and Teucrium capitatum were rich in sesquiterpenes. The most active essential oils were those of T. capitata (LC50 = 3.4 μL/L air) and S. pomifera subsp. calycina (LC50 = 4.4 μL/L air) against S. oryzae adults. The essential oils of S. fruticosa, L. nobilis and S. officinalis were also found to be highly toxic (LC50 = 7.4–15.5 μL/L air). Most of the other essential oils tested exhibited moderate to low toxicities (LC50 = 17.7–37.9 μL/L air), while those of C. coggygria and S. microphylla did not exhibit any noticeable activity. Our results indicate that some essential oils, and in particular those of T. capitata and S. pomifera subsp. calycina might be promising fumigants for the control of important pests of stored grain such as the rice weevil S. oryzae.
Journal of Pest Science – Springer Journals
Published: Nov 9, 2017
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera