Repellent and Fumigant Activities of Tanacetum nubigenum Wallich. ex DC Essential Oils against Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)

• Published in: Journal of Oleo Science Vol. 64; no. 8; pp. 895 - 903
• Main Authors: Haider, S. Zafar, Mohan, Manindra, Pandey, Abhay K., Singh, Pooja
• Format: Journal Article
• Language: English
• Published: Japan Japan Oil Chemists' Society 2015
• Subjects: Animals; Chromatography, Gas; Coleoptera; Coleoptera - drug effects; Dose-Response Relationship, Drug; Edible Grain - parasitology; Essential oils; Exposure; Flame Ionization; Flour; Food Contamination - prevention & control; Food Storage; fumigant activity; Fumigation; Gas Chromatography-Mass Spectrometry; Grains; In vivo methods and tests; India; Insect Repellents; Insects; Oils, Volatile - chemistry; Oils, Volatile - isolation & purification; Oils, Volatile - pharmacology; Oils, Volatile - toxicity; Repellents; Tanacetum; Tanacetum - chemistry; Tanacetum nubigenum; Tenebrionidae; Toxicity; Tribolium castaneum; Triticum - parasitology; Triticum aestivum; wheat grains
• ISSN: 1345-8957; 1347-3352
• DOI: 10.5650/jos.ess15094

The repellent and fumigant toxicity of essential oils of Tanacetum nubigenum Wallich. ex DC collected from three different habitats (Gothing, Burphu and Glacier) of Uttarakhand Himalayas, India named as TNG, TNB and TNM respectively, were investigated against the adults of red flour beetle Tribolium castaneum (Herbst). Among the three samples tested, TNG was found to more potent exhibiting more repellent effect towards the insects and with LC50 values by fumigant bioassay were 13.23 and 8.32 µl per 0.25 L air at 24 and 48 h exposure of insects to the essential oil respectively. In between other two oil samples, TNM was superior in potency showed LC50 value of 14.22 (24 h) & 8.82 µl per 0.25 L air (48 h). During in vivo study all the essential oil samples significantly protected 500 g of wheat grains for 6 months from insect infestation as compared to non fumigated grains and order of efficacy was TNG>TNM>TNB. There were no side effects of essential oils on germination rate of grains (<85%) exposed for 6 months after fumigation. The present study suggests that essential oil of T. nubigenum can be explored as novel natural fumigants for the control of stored product insects.