Systematic & Applied Acarology
ISSN 1362-1971
An international journal of the Systematic and Applied Acarology Society, published since 1996

[Aims] [Editors] [Content] [Subscriptions] [Contact details] [Society Homepage]

Systematic & Applied Acarology (2007) 12, 1925.

Potential of garlic as grain protectants against Tyrophagus putrescentiae Schrank and Suidasia nesbitti Hughes in wheat


Department Of Entomology, CCS Haryana Agricultural University, Hisar-125 004, Haryana, India.



The efficacy of commercially available garlic products viz., garlic oil, garlic powder and garlic oleoresin was evaluated against Tyrophagus putrescentiae Schrank and Suidasia nesbitti Hughes in stored wheat grains. All products reduced pest populations by 96 to 100% at a concentration of 0.2%. Garlic oil was the most potent against two mite species. It significantly reduced the population of T. putrescentiae (to average 33.24 mites) and that of S. nesbitti (to average 38.52 mites) in treated wheat grains. The population of T. putrescentiae in oleoresin and powder treated wheat grains was 39.37 and 50.31, respectively while that of S. nesbitti was 45.29 and 61.31, respectively as compared to untreated wheat grains (131 T. putrescentiae and 150 S. nesbitti mites). Eggs and larval stages were significantly (p<0.05) more susceptible to the garlic treatments than nymphs and adults. In garlic oil-treated grains (0.1% concentration), 10.3% and 11.8% of the eggs of T. putrescentiae and S. nesbitti, respectively, hatched, compared to 29.6 and 34% survival of these adults, at the same concentration. After an exposure of 45 days, garlic oil, oleoresin and powder provided 85.61, 64.56 and 79.85% protection against T. putrescentiae, as compared to 85.6, 63.62, and 78.96% against S. nesbitti in wheat grains.

Key words: Garlic products, storage, S. nesbitti, T. putrescentiae, wheat


Bhatnagar-Thomas, P.L. & Pal, P.K. (1974) Studies on insecticidal activities of garlic oil. I- Differential toxicity of the oil to Musca domestica nebulo Fabr. and Trogoderma granarium Everts. Journal of Food Science & Technology, 11, 110113.

Chatterjee, A., Biswanath, D., Adityachandraya, N. & Deb-Kritaniya, S. (1980) Studies on aryl and diaryl thioureas and their insecticidal activity. Indian Journal of Chemistry, 19, 163164.

Chiam, W.Y., Huang, Y., Chen, S.X. & Ho, S.H. (1999) Toxic and antifeedant effects of allyl disulfide on Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) and Sitophilus zeamais Motsch. (Coleoptera: Curculionidae). Journal of Economic Entomology, 92, 239245.

Gulati, R. (1997) Inhibitory action of neem products on Tyrophagus putrescentiae Schrank (Acarina: Acaridae) in wheat during storage. Annals of Agri-Bio Research, 227230.

Gulati, R. (2002) Bioefficacy of Curcuma longa L. oil against Tyrophagus putrescentiae Schrank and Suidasia nesbitti Hughes in wheat. Pest Management and Economic Zoology, 10(2), 115119.

Gulati, R. & Mathur, S. (1995) Effect of Eucalyptus, Mentha leaves and Curcuma rhizomes on Tyrophagus putrescentiae (Schrank) in wheat. Experimental & Applied Acarology, 19, 511518.

Gulati, R., Singh, M., Punia, A. & Sareen, B. (1999) Estimation of germination losses in four pulses from infestation by Suidasia nesbitti. Journal of Acarology, 14, 112115.

Ho, S.H., Koh, L., Huang, Y. & Sim, K.Y. (1996) The oil of garlic Allium sativum L. (Amaryllidaceae), as a potential grain protectant against Tribolium castaneum (Herbst) and Sitophilus zeamais Motsch. Postharvest Bio Technology, 9, 4148.

Huang, Y., Chen, S.X. & Ho, S.H. (2000) Bioactivities of methyl allyl disulfide and diallyl trisulfide from essential oil of garlic to two species of stored product pests, Sitophilus zeamais (Coleoptera: Curculionidae)

and Tribolium castaneum (Coleoptera: Tenebrionidae). Journal of Economic Entomology, 93(2), 537543.

Jacobson, M. (1990) Glossary of plant derived insect deterrents. CRC, Boca Raton, FL.

Kohli, R. & Mathur, S. (1993) Life processes of Tyrophagus putrescentiae Schrank (Acarina: Acaridae) as influenced by photoperiod. Crop Research, 6, 311316.

Mourier, H. & Poulsen, K.P. (2000) Control of insects and mites in grain using a high temperature/ short time (HTST) technique. Journal of Stored Product Research, 36, 309318.

Pande, N.D., Singh, S.R. & Tewari, G.C. (1976) Use of plant powders, oils and extracts as protectants against pulse beetle, Callosobruchus chinensis L. Indian Journal of Entomology, 38, 110113.

Stoll, A. & Seedbeck, E. (1951) Chemical investigations on allicin, the specific principle of garlic. Advances in Enzymology, 11, 377400.

Yu, T.H., Wu, C.M. & Liou, Y.C. (1989) Volatile compounds from garlic. Journal of Agricultural Food Chemistry, 37, 725730.

Zdarkova, E. (1996) The effect of mites on the germination of seed. Ochrana-Rostlin, 32(3), 175179.

Zdarkova, E. (1999) Biological control of stored food mites on oilseeds using the mite predator Cheyletus eruditus (Schrank). Plant Protection Sciences, 35(4), 136138.

Copyright Systematic and Applied Acarology Society
Last updated 30 April 2007
 Natural History Museum is acknowledged for hosting these pages. Please read the Disclaimer.