苍术、罗勒和霍香精油作为熏剂对仓储谷物害虫赤拟谷盗的杀虫活性。
Insecticidal activity of Ageratum conyzoides L., Coleus aromaticus Benth. and Hyptis suaveolens (L.) Poit essential oils as fumigant against storage grain insect Tribolium castaneum Herbst.
机构信息
Laboratory of Herbal Pesticides, Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi, 221005 India.
Laboratory of Herbal Pesticides, Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi, 221005 India ; Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi, 221005 India.
出版信息
J Food Sci Technol. 2014 Sep;51(9):2210-5. doi: 10.1007/s13197-012-0698-8. Epub 2012 Apr 24.
Essential oils (EOs) from Ageratum conyzoides L., Coleus aromaticus Benth. and Hyptis suaveolens (L.) Poit were extracted and tested against Tribolium castaneum Herbst, the storage grain insect. The EOs were found effective against Tribolium castaneum during in vitro as well as in vivo fumigant testing. The EOs of H. suaveolens and A. conyzoides showed 100 % mortality of test insect at 250 ppm while C. aromaticus at 350 ppm. During in vivo fumigant testing of wheat samples against Tribolium castaneum, the essential oils of A. conyzoides and C. aromaticus completely checked the damage of wheat grains by the insect at 1000 ppm while essential oil of H. suaveolens checked the grain damage completely even at 500 ppm concentration. There was no adverse effect on seed germination as well as on seedling growth of EOs treated seeds showing non-phytotoxic nature of the oils. Hence, these EOs may be recommended as botanical insecticide against insect invasion of stored food commodities, thereby enhancing their shelf life.
从藿香、罗勒和兰香草中提取的精油，并对仓储谷物害虫赤拟谷盗进行了测试。这些精油在体外和体内熏气测试中都对赤拟谷盗有效。在 250ppm 时，兰香草和牛膝草的精油对试验昆虫的死亡率达到 100%，而罗勒的则为 350ppm。在对小麦样品进行活体熏气测试时，牛膝草和罗勒的精油在 1000ppm 时完全阻止了赤拟谷盗对麦粒的损害，而兰香草的精油即使在 500ppm 的浓度下也能完全阻止麦粒受损。处理过的种子的发芽和幼苗生长都没有受到不良影响，这表明这些精油没有植物毒性。因此，这些精油可以作为一种植物性杀虫剂推荐用于防治储存食品中的虫害，从而延长其保质期。
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