Evaluation of anthocorid predator, Blaptostethus pallescens Poppius against spider mite, Tetranychus urticae Koch on Okra under insect net cage condition


  • Punjab Agricultural University, Biocontrol Section, Department of Entomology, Ludhiana, Punjab, 141004, India
  • Punjab Agricultural University, Biocontrol Section, Department of Entomology, Ludhiana, 141004, Punjab, India


The present study deals with the evaluation of anthocorid bug, Blaptostethus pallescens Poppius against Tetranychus urticae Koch on okra (Abelmoschus esculentus L.), conducted in Karif season (June-August) during 2013-2015 in the net cage condition at Entomological Research Farm, Punjab Agricultural University, Ludhiana. The 6-7 days old nymphs of B. pallescens @ 10, 20 and 30 nymphs/m2 were released at weekly interval on the mite infested plants and these were compared with chemical control (Omite @ 300ml/acre at 10 days interval) and untreated control. The releases of predators and acaricidal spray on okra were found better than control in suppressing the population of T. urticae. The release of B. pallescens @ 30 nymphs/m2 was found most effective with a 75.86 to 81.20 per cent reduction of mite population over control. It was statistically at par with chemical control, where 84.04 to 91.66 per cent reduction of mite population over control was recorded. There was no significant difference observed in the reduction of mite population of the plots released with 20 and 10 nymphs/m2 of B. pallescens. The yield of okra from the plots of chemical control was recorded highest (52.70 q/acre), followed by 45.05 q/acre from the plots released with a B. pallescens @ 30 nymphs/m2 at seven days interval. The study concluded that, integrating predator, B. pallescens @ 30 nymphs/plant along with acaricide (Omite 300 ml/acre) as a component of IPM for the management of two-spotted spider mite, T. urticae on okra under net house conditions.


Anthocorid bug, Blaptostethus pallescens, okra, Tetranychus urticae, two-spotted red spider mite

Full Text:


Angeli G, Maines R, Sandri O, Trona F, Baldessari M. 2008. Efficacy of the acaricide Omite 57 EW (Propargite) against some strains of spider mite Tetranychus urticae. Giornate Fitopatologiche 1: 289-292.

Anonymous. 2005.The Hindu Surv. Indian Agric., Chennai, pp. 51-56.

Anonymous. 2013. Package of Practices for Cultivation of Vegetables. pp 29-35. Punjab Agricultural University, Ludhiana, Punjab, India.

Ballal CR, Gupta T, Joshi S. 2012. Predatory potential of two indigenous anthocorid predators on Phenacoccus solenopsis Tinsley and Paracoccus marginatus Williams and Granara de Willink. J Biol Control 26: 18-22.

Ballal CR, Gupta T, Joshi S, Chandrashekhar K. 2009. Evaluation of an anthocorid predator Blaptostethus pallescens against two-spotted spider mite, Tetranychus urticae. IOBC/WPRS Bull. 49: 127-32.

Ballal CR, Singh SP, Poorani J, Gupta T. 2003. Biology and rearing requirements of an anthocorid predator, Blaptostethus pallescens (Poppius). J Biol Control 17: 29-33.

Cho JR, Kim YJ, Ahn YJ, Yoo JK, Lee JO. 1995. Monitoring of acaricide resistance in field collected populations of Tetranychus urticae (Acari: Tetranychidae) in Korea. Korean J Appl Entomol. 31: 40-45.

Devine GJ, Barber M, Denholm I. 2001. Incidence and inheritance of resistance to METI-acaricides in European strains of the two spotted spider mite (Tetranychus urticae) (Acari: Tetranychidae). Pest Manag Sci. 57: 443-448. https://doi.org/10.1002/ps.307 PMid:11374162

Dobson H, Copper J, Manyangarirwa W, Karuma J, Chiimba W. 2002. Integrated vegetable pest management: Safe and sustainable protection of small-scale brassicas and tomatoes-A hand book for extension staff and trainers in Zimbabwe. Published by NRI, University of Greenwich, UK,179 pp.

Efe D, Cakmak I. 2013. Life table parameters and predation of Orius niger (Wolf) (Hemiptera: Anthocoridae) feeding on two different prey. Turk Entomol Derg. 37: 161-67.

Ghosh SK. 2013. Sustainable management of red spider mite (Tetranychus sp.) infesting eggplant (Solanum melongena L.) at field level. Uttar Pradesh J Zool. 33: 175-180.

Gomez KA, Gomez AA. 1984. Statistical procedures for agricultural research, 2nd ed. John Wiley and Sons Inc, New York, USA, 704 pp.

Gupta T, Ballal CR, Joshi S. 2011.Preferential feeding of an anthocorid predator, Blaptostethus pallescens Poppius on different stages of cotton mealy bug. J Biol Control 26: 18-22.

Hayes WJ, Laws ER. 1991. Handbook of pesticide toxicology. Vol1. Academic, San Diego, C A.

Hernandez LM, Stonedhal GM. 1999. A review of economically important species of genus Orius and Orius sauteri (Hemiptera: Antocoridae) when reared on Ephestia kuehinella eggs. Appl Entomol Zool. 33: 44953. https://doi.org/10.1080/002229399300245

Jalali SK, Singh SP. 2002. Seasonal activity of stem borers and their natural enemies on fodder maize. Entomon 27: 137-46.

Jeppson LR, Keifer HH, Baker EW. 1975. Mite injurious to economic plants. University of California Press, Berkeley, California, 614pp.

JeyaraniS, Singh RJ, Ramaraju K. 2012. Efficacy of predators against the two spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae). J Biol Control 26: 279282.

Kaur P, Bhullar MB, Kaur R. 2012. Predatory potential of an anthocorid predator Blaptostethus pallescens (Poppius) against two spotted spider mite Tetranychus urticae Koch on brinjal. Proc Agrochem Prot crops, Health Natural Envir 2nd Int conf New Delhi, India.

Kaur R, Virk JS. 2011. Role of Blaptostethus pallescens (Poppius) and Xylocoris flavipes (Reuter) in the suppression of Corcyra cephalonica Stanton in stored rice grains. J Biol Control 26: 329-332.

Kumar D, Raghuraman M, Kumar R, Singh D. 2013. Distribution, abundance and bioefficacy of acaricides against red spider mite (Tetranychus urticae Koch) in certain vegetables crops. Prog Res. 8: 309-311.

Muraleedharan N. 1977. Some genera of Anthocorinae (Heteroptera: Anthocoridae) from South India. Entomon 2: 231-35.

Rahman A, Sarmah, M, Phukan AK, Gurusubramanian G. 2007.Bioactivity of different formulations of propargite 57% EC against red spider mite, Oligonychus coffeae in tea. Res Crops 8: 474-480.

Rajasekhara K. 1973. A new species of Blaptostethus (Hemiptera: Anthocoridae) from Mysore, India. Ann Ent Soc Am. 66: 86-87. https://doi.org/10.1093/aesa/66.1.86

Sengonca C, Ahmadi K, Blaeser P. 2008. Biological characteristics of Orius similis Zhang (Heteroptera: Anthocoridae) by feeding on different aphid species as prey. J Pl Dis Prot. 115: 32-38. https://doi.org/10.1007/BF03356236

Srinivasa N, Sugeetha J. 1999. Bioeffectiveness of certain botanicals and synthetic pesticides against okra spider mite Tetranychus macfarlanei. J Acarol. 15: 1-5.

Wang S, Michand JP, Tan XL, Zhang F. 2014. Comparative suitability of aphids, thrips and mites as prey for the flower bug Orius sauteri (Hemiptera: Anthocoridae). Eur J Entomol. 111: 221-26. https://doi.org/10.14411/eje.2014.031

Zhang SC, Zhu F, Zheng XL, Lei CL, Zhou XM. 2012. Survival and developmental characteristics of predatory bug, Orius similis (Hemiptera: Anthocoridae) fed on Teteranychus cinnabarinus (Acari: Tetranychidae) at three constant temperatures. Eur J Entomol. 109: 503-08.



  • There are currently no refbacks.