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Fumigant toxicity of some essential oils against Red Flour Beetles, Tribolium castaneum (Herbst) and its safety to mammals.

Abstract

Fumigant activities for three essential oils; Garlic oil (Allium sativum L); Chili pepper (Capsicum annuum L.) and Nigella (Nigella sativa L.) were assessed at different concentrations against the adult and 20-days old larval stages of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) in the laboratory. The accumulative mortality was observed at different exposure periods (3, 5 and 7 days). The residual effect of garlic oil that was the effective oil, on the treated wheat grains was evaluated with respect to histological changes in the liver, kidney, and stomach of rat fed on this treated wheat. The results showed that the mortality rates of treated stages increased with increasing the time of fumigation treatment. Moreover the highest essential oils toxicity at the Median lethal concentration (LC50) values for exposure periods (3, 5 and 7 days) to fumigation were (126, 53, and 47 mg/L air) for adult stage and were (79, 62, and 41 mg/L air) for larval stage, respectively in the case of Garlic oil treatment. While, the lowest essential oils effective was Nigella oil at the Median lethal concentration (LC50) values for exposure periods (3, 5 and 7 days) to fumigation were (3594, 629, and 335 mg/L air) for adult stage and were (1040, 416, and 227 mg/L air) for larval stage, respectively. The toxicity effect of various essential oils against adults and larvae of T. castaneum at the LC50at 7 days fumigation could be arranged in descending order as follows: Garlic oil, Chili pepper oil, and Nigella oil. The histological changes showed that the organs slightly affected at the fumigation for 3 days. It may be concluded that the garlic essential oil is the good effective fumigant to control T. castaneum in the stored products and it recommended that the fumigation period does not exceed 3 days. The garlic essential oil has the potential for applications in IPM programs for stored-grain pests because of its high volatility and fumigant activity and its safety.

Authors+Show Affiliations

Biological Application Department, Nuclear Research Center, Atomic Energy Authority, P.O. Box 13759, Abo-Zaabal, Egypt.Plant Research Department, Nuclear Research Center, Atomic Energy Authority, P.O. Box 13759, Abo-Zaabal, Egypt.Biological Application Department, Nuclear Research Center, Atomic Energy Authority, P.O. Box 13759, Abo-Zaabal, Egypt.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31800762

Citation

Sileem, T M., et al. "Fumigant Toxicity of some Essential Oils Against Red Flour Beetles, Tribolium Castaneum (Herbst) and Its Safety to Mammals." Brazilian Journal of Biology = Revista Brasleira De Biologia, 2019.
Sileem TM, Mehany AL, Hassan RS. Fumigant toxicity of some essential oils against Red Flour Beetles, Tribolium castaneum (Herbst) and its safety to mammals. Braz J Biol. 2019.
Sileem, T. M., Mehany, A. L., & Hassan, R. S. (2019). Fumigant toxicity of some essential oils against Red Flour Beetles, Tribolium castaneum (Herbst) and its safety to mammals. Brazilian Journal of Biology = Revista Brasleira De Biologia, doi:10.1590/1519-6984.219529.
Sileem TM, Mehany AL, Hassan RS. Fumigant Toxicity of some Essential Oils Against Red Flour Beetles, Tribolium Castaneum (Herbst) and Its Safety to Mammals. Braz J Biol. 2019 Dec 2; PubMed PMID: 31800762.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fumigant toxicity of some essential oils against Red Flour Beetles, Tribolium castaneum (Herbst) and its safety to mammals. AU - Sileem,T M, AU - Mehany,A L, AU - Hassan,R S, Y1 - 2019/12/02/ PY - 2019/02/05/received PY - 2019/05/31/accepted PY - 2019/12/5/entrez PY - 2019/12/5/pubmed PY - 2019/12/5/medline JF - Brazilian journal of biology = Revista brasleira de biologia JO - Braz J Biol N2 - Fumigant activities for three essential oils; Garlic oil (Allium sativum L); Chili pepper (Capsicum annuum L.) and Nigella (Nigella sativa L.) were assessed at different concentrations against the adult and 20-days old larval stages of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) in the laboratory. The accumulative mortality was observed at different exposure periods (3, 5 and 7 days). The residual effect of garlic oil that was the effective oil, on the treated wheat grains was evaluated with respect to histological changes in the liver, kidney, and stomach of rat fed on this treated wheat. The results showed that the mortality rates of treated stages increased with increasing the time of fumigation treatment. Moreover the highest essential oils toxicity at the Median lethal concentration (LC50) values for exposure periods (3, 5 and 7 days) to fumigation were (126, 53, and 47 mg/L air) for adult stage and were (79, 62, and 41 mg/L air) for larval stage, respectively in the case of Garlic oil treatment. While, the lowest essential oils effective was Nigella oil at the Median lethal concentration (LC50) values for exposure periods (3, 5 and 7 days) to fumigation were (3594, 629, and 335 mg/L air) for adult stage and were (1040, 416, and 227 mg/L air) for larval stage, respectively. The toxicity effect of various essential oils against adults and larvae of T. castaneum at the LC50at 7 days fumigation could be arranged in descending order as follows: Garlic oil, Chili pepper oil, and Nigella oil. The histological changes showed that the organs slightly affected at the fumigation for 3 days. It may be concluded that the garlic essential oil is the good effective fumigant to control T. castaneum in the stored products and it recommended that the fumigation period does not exceed 3 days. The garlic essential oil has the potential for applications in IPM programs for stored-grain pests because of its high volatility and fumigant activity and its safety. SN - 1678-4375 UR - https://www.unboundmedicine.com/medline/citation/31800762/Fumigant_toxicity_of_some_essential_oils_against_Red_Flour_Beetles,_Tribolium_castaneum_(Herbst)_and_its_safety_to_mammals L2 - http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842019005019107&lng=en&nrm=iso&tlng=en DB - PRIME DP - Unbound Medicine ER -