Efficacy of Acaricides on Eutetranychus orientalis (Acari: Tetranychidae) and Its Compatibility with Predatory Mite Euseius scutalis (Acarei: Phytoseiidae) under Field Conditions

Main Article Content

Sheriehan M. Al-amin*
A.M.A. Ibrahim
Ali M. Ali
Amira E. Mesbah
N.A. Soliman


Efficacy evaluation of seven acaricides, i.e. Acarine (Abamectin 5% EC), Gat Fast (2% Abamectin + 10% Thiamthoxam (12% SC)), Ortis Super (Fenpyroximate 5% EC), Concord (Chlorfenapyr 24% EC), Perfect (2% Abamectin + 10% Chlorfenapyr (12% EW)), Micronet S (Sulfur 80% WP ) and Acarots (Fenpyroximate 5% SC) at recommended dose (RD), against the brown spider mite, Eutetranychus orientalis (Tetranychidae) and its predatory mite, Euseius scutalis (Phytoseiidae), was applied on citrus crop in Assiut Governorate under field conditions. Three assorted exposure eras: three days, one week and two weeks, were achieved in May 2018. It was found that a total reduction rate of these 7 acaricides against E. orientalis was 88.26%, 90.40%, 87.99%, 88.91%, 88.78%, 88.41% and 87.82% and against E. scutalis was 23.69%, 19.61%, 14.33%, 12.7%, 15.52%, 16.51% and 15.33%, respectively. Abamactin 5% was significantly higher than other acaricides (p<0.05) followed by Fenpyroximate 5% EC and Fenpyroximate 5% SC. On the other hand, the rest of acaricides appeared to be insignificant (p>0.05). Acaricides can be used against E. orientalis without affecting E. scutalis where the results showed compatibility between acaricide and predatory mites in the field. For mode of action, Fenpyroximate is safer for human and animal than others because it acts as mitochondrial electron transport inhibitor with contact action. Application of serial concentrations from these compounds is recommended to reduce its toxicity in the environment.


Keywords: efficacy; E. orientalis; predatory mites; acaricide; reduction rates

*Corresponding author: E-mail: tamersherihan@gmail.com


Download data is not yet available.

Article Details

Research Articles


[1] Sewify, G.H. and Mabrouk, A.M., 1991.The susceptibility of different stages of the citrus brown mite Eutetranychus orientalis (Klein) (Acarina: Tetranychidae) to the entomopathogenic fungus Verticillium lecanii (Zimm) Viegas. Egyptian Journal of Applied Biology and Control, 1, 89-92.
[2] Walter, D.E., Halliday, R.B. and Smith, D., 1995. The oriental red mite, Eutetranychus orientalis (Klein) (Acarina, Tetranychidae) in Australia. Journal of the Australian Entomological Society, 34, 307-308.
[3] Márquez, A., Wong, E., García, E. and Olivero, J., 2006. Efficacy assay of different phytosanitary chemicals for the control of Eutetranychus orientalis (Klein) (Oriental Spider Mite) on Fine lemon and Valencia-Late orange crops. IOBC/WPRS Bulletin, 29, 305-310.
[4] Rasmy, A.H., 1978. Biology of the citrus brown mite, Eutetranychus orientalis as affected by some citrus species. Acarologia, 19, 222-224.
[5] Ledesma, C., Vela, J.M., Wong, E., Jacas, J.A. and Boyero, J.R., 2011. Population dynamics of the citrus oriental mite, Eutetranychus orientalis (Klein) (Acari: Tetranychidae), and its mite predatory complex in southern Spain. IOBC/WPRS Bulletin, 62, 83-92.
[6] McMurtry, J.A., Huffaker, C.B. and van de Vrie, M., 1970. Ecology of tetranychid mites and their natural enemies: a review. I. Tetranychid enemies: Their biological characters and the impact of spray practices. Hilgardia, 40, 331-458.
[7] Luckey, T.D .,1968.Insecticide hormoligosis. J Econ Entomol 61:7–12.
[8] Bounfour, M. and McMurtry J.A.1987.Biology and ecology of Euseius scutalis (Athias-Henriot) (Acarina: Phytoseiidae). Hilgardia ,55(5),23 pp.
[9] McMurtry, J.A. and Croft, B.A., 1997. Life-styles of Phytoseiid mites and their roles in biological control. Annual Review of Entomology, 42, 291-321.
[10] Meyerdirk, D.E. and Coudriet, D.L., 1986. Evaluation of two biotypes of Euseius scutalis (Acarina: Phytoseiidae) as predators of Bemisia tabaci (Homoptera: Aleyrodidae). Journal of Economic Entomology, 79(3), 659-663.
[11] Yıldız, S., 1998. Determination of the Phytoseiidae Species from Vegetable Growing Areas of the East Mediterranean-Turkey. MSc, Çukurova University, Institute of Natural and Applied Sciences, Adana, 36 pp. (Turkish with English summary).
[12] Nomikou, M., Janssen, A., Schraag, R. and Sabelis, M.W., 2001. Phytoseiid predators as potential biological control agents for Bemisia tabaci. Experimental & Applied Acarology, 25, 271-291.
[13] Tanigoshi, L.K., Bahdousheh, M., Babcock,J.M. and Sawaqed, R., 1990. Euseius scutalis (Athias-Henriot) a predator of Eutetranychus orientalis (Klein) (Acari: Phytoseiidae, Tetranychidae) in Jordan: toxicity of some acaricides to E. orientalis. Arab Journal of Plant Protection, 8, 114-120.
[14] Lasota, J.A. and Dybas, R.A., 1990. Abamectin as a pesticide for agricultural use. Acta Leidensia, 59, 217-225.
[15] Alhewairini, S.S., 2018. Efficacy comparison of HUWA-SAN TR50, Abamactin and Bifenthrin for the control of the oriental spider mite, Eutetranychus orientalis (Klein) (Acari: Tetranychidae). Pakistan Journal of Agricultural Science, 55 (4), 1003-1007.
[16] Pozebon, A., Duso, C., Tirello, P. and Ortiz, P.B., 2011. Toxicity of thiamethoxam to Tetranychus urticae Koch and Phytoseiulus persimilis Athias-Henriot (Acari Tetranychidae, Phytoseiidae) through different routes of exposure. Pest Management Science, 67 (3), 352-359.
[17] Maienfisch, P., Angst, M., Brandl, F., Fischer, W., Hofer, D., Kayser, H., Kobel, W., Rindlisbacher, A., Senn, R., Steinemann, A. and Widmer, H., 2001. Chemistry and biology of thiamethoxam: a second generation neonicotinoid. Pest Management Science, 57 (10), 906-9013.
[18] Motoba, K., Suzuki, T. and Uchida, M., 1992. Effect of a new acaricide, fenpyroximate, on energy metabolism and mitochondrial morphology in adult female Tetranychus urticae (two-spotted spider mite). Pesticide Biochemistry and Physiology, 43 (1), 37-44.
[19] Raghavendra, K., Barik, T.K., Sharma, P., Bhatt, R.M., Srivastava, H.C., Sreehari, U. and Dash,
A.P., 2011. Chlorfenapyr: a new insecticide with novel mode of action can control pyrethroid
resistant malaria vectors. Malaria Journal, 10(16). https://doi: 10.1186/1475-2875-10-16.
[20] Misbah-Ul-Haq, M., Khan, I.A., Farid, A., Ullah, M., Gouge, D.H. and Baker, P.B., 2016. Efficacy of indoxacarb and chlorfenapyr against Subterranean termite Heterotermes indicola (Wasmann) (Isoptera). Turkiye Entomoloji Dergisi, 40 (3), 227-241.
[21] Arthur, F.H., 2009. Efficacy of chlorfenapyr against adult Tribolium castaneum exposed on concrete: effects of exposure interval, concentration and the presence of a food source after exposure. Insect Science, 16, 157-163.
[22] Kenneth, W.C., Edwin, E.L. and Peter, B.S., 2002. Compatibility of acaricide residues with Phytoseiulus persimilis and their effects on Tetranychus urticae. American Society for Horticulture Science, 37 (6), 906-909.
[23] Tomlin, C.D.S., 2000. The Pesticide Manual: A World Compendium. 12th ed. London: British Crop Protection Council.
[24] Henderson, C.F. and Tilton, E.W. 1955. Test with acaricides against the brown wheat mite. Journal of Economic Entomology, 48,157-161.
[25] EFSA (European Food Safety Authority), 2013. Conclusion on the peer review of the pesticide risk assessment of the active substance fenpyroximate, EFSA Journal, 11 (12), 3493. [online] Available at: https://efsa.onlinelibrary.wiley.com/doi/pdf/10.2903/j.efsa.2013.3493
[26] Debach, P. and Rosen, D., 1991. Biological Control by Natural Enemies. 2nd ed. Cambridge: Cambridge Univ Press.
[27] Jonsson, M., Maratten, S.D., Landis, D.A. and Gurr, G.M., 2008. Recent advances in conservation biological control of arthropods by arthropods. Biological Control, 45, 172-175.
[28] Barbosa, P., 2003. Conservation Biological Control. San Diego: Academic Press.
[29] Marino, P.C., Landis, D.A. and Hawkins, B.A., 2006. Conserving parasitoid assemblages of North American pest Lepidoptera: Does biological control by native parasitoids depend on landscape complexity. Biological Control, 37, 173-185.
[30] James, D.G., 2001. History and perspectives of biological mite control in Australian horticulture using exotic and native phytsoeiids. Acarology: Proceedings of the 10th International Congress. Melbourne, Australia, 436-443.
[31] James, D.G., 2002. Selectivity of the miticide, bifenazate and aphicide,pymetrozine, to spider mite predators in Washington hops. International Journal of Acarology, 28, 175-179.
[32] James, D.G., 2003. Pesticide susceptibility of two coccinellids (Stethorus punctum picipes (Casey) and Harmonia axyridis Pallas) important in biological control of mites and aphids in Washington hops. Biocontrol Science and Technology, 13, 253-259.
[33] James, D.G., 2004. Effect of buprofezin on survival of immature stages of Harmonia axyridis, Stethorus punctum picipes (Coleoptera: Coccinellidae), Oriu tristicolor (Hemiptera: Anthocoridae) and Geocoris spp. (Hemiptera: Geocoridae). Journal of Economic Entomology, 97, 900-904.
[34] Chandler, D., Davidson, G., Pell, J.L., Ball, B.V., Shaw, K. and Sunderlan, K.D., 2000. Fungal biocontrol of Acari. Biocontrol Science and Technology, 10 (4), 357-384.