Spatial distribution of cabbage aphid, Brevicoryne brassicae (L.) and its parasitoid, Diaeretiella rapae (Mc Intosh) under sub-temperate conditions of Himachal Pradesh, India


  • Department of Entomology, Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan - 173230, Himachal Pradesh
  • Department of Entomology, Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan - 173230, Himachal Pradesh
  • Department of Entomology, Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan - 173230, Himachal Pradesh



Brevicoryne brassicae, Diaeretiella rapae, dispersion, parasitoid, spatial distribution


Cabbage aphid, Brevicoryne brassicae (L) (Aphididae: Hemiptera) is one of the most serious pest of cauliflower throughout the world. Knowledge of spatial distribution is important for developing an effective sampling plan and ultimately for IPM strategies for a given pest. In the present study spatial distribution of B. brassicae and its parasitoid, Diaeretiella rapae (Mc lntosh) (Braconidae: Hymenoptera) was studied on cauliflower (Brassica oleracea var botrytis) under sub-temperate conditions of India during 2017. Both B. brassicae and D. rapae assumed activity in the fourth week of January and remained active till May end with peak activity during fourth week of March, 2017. Dispersion indices like variance to mean ratio (σ2/X), David-Moore index (IDM = σ2/X-1), mean crowding (X*), Lloyd's mean crowding index (X*/X) and ‘k' of negative binomial indicated that both the aphid and the parasitoid followed negative binomial distribution throughout the cropping season, Taylor's power equation was σ2 = 1.7013X0.5314 for B. brassicae and σ2 = 2.2057X1.4467 for D. rapae, while Iwao's patchiness regression equation was X*= 32.0099+1.7947X and X*= -2.0678+2.2746X for B. brassicae and D. rapae, respectively. Optimum number of samples required varied with the mean density and the desired precision level for both the aphid and the parasitoid.


Download data is not yet available.


Metrics Loading ...


Akhtar MS, Dey D, Usmani MK. 2010. Spatial distribution of mustard aphid, Lipaphis erysimi (Kaltenbach) vis-avis its parasitoid, Diaeretiella rapae (M'intosh). World Appl Sci J. 11: 284-88.

Amini B, Madadi H. 2014. Spatial distribution of Brevicoryne brassicae and Diaeretiella rapae and development a fixed precision sampling plan. J Pl Pests Res. 4: 1-10.

Anonymous. 2014. Package of Practices of Vegetable Crops. Directorate of Extension Education. Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP), 202 pp.

Anonymous. 2017. Horticultural Statistics at a Glance. Horticulture Statistics Division, Department of Agriculture, Cooperation and Farmers Welfare, Government of India, 481 pp.

Arbab A, Mirphakhar F. 2011. Spatial distribution pattern and sequential sampling plans for Bactrocera oleae (Gmelin) (Diptera: Tephritidae) in olive orchards. J Ent Acarol Res. 48: 23-38.

Bhatia R, Gupta D. 2003. Insect and mite pest status of subtropical horticultural crops in Himachal Pradesh. J Insect Sci. 16: 1-8.

Bhatia R. 1986. Insect Pest Complex of Cabbage in Himachal Pradesh and Persistence and Harvest Time Residues of Some Insecticides Used for its Control. Ph D Thesis.Department of Entomology, Dr. Y.S. Parmar University of Horticulture and Forestry, Solan, 90 pp.

David FN, Moore GP. 1954. Notes on contagious distributions in plants population. Annals Bot. 18: 47-53.

Devi PB. 1998. Bioecology of Myzus persicae (Sulzer) (Homoptera: Aphididae) on Certain Cole Crops in Manipur. Ph D Thesis, Manipur University, Manipur, India, 24 pp.

Iwao S. 1972. Application of the m-m method to the analysis of spatial patterns by changing the quadrat size. Res Popul Ecol. 14: 97-128.

Kaul VK. 1998. Insect Pest Management on Cauliflower (Brassica oleracea var botrytis L). Ph D Thesis.

Department of Entomology, Himachal Pradesh Krishi Vishvavidyalaya, Palampur (HP), India, 102 pp.

Khan IA, Ahmad M, Akbar R, Hussain S, Saeed M, Farid A, Shah RA, Fayaz W, Shah B, Ud Din MM. 2015. A study on losses due to Brevicoryne brassicae in different Brassica genotypes under screen house conditions. J Entomol Zool Stud. 3: 16-19.

Kumar D, Raju SVS, Nagrajan C. 2014. Occurrence of insect pests and their natural enemies on cauliflower, Brassica oleracea var botryris in Varanasi. Bioinfolet 11: 323-325.

Lloyd M. 1967. Mean crowding. J Animal Ecol. 36: 1-30.

Meghana C, Jayappa J, Reddy NA, Devappa V, Sridhar V, Jyothi K. 2018. Assessing susceptibility of diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae) population of different geographic region to selected newer insecticides. J Entomol Zool Stud. 6: 320-327.

Patil GP, Stiteler WM 1974. Concepts of aggregation and their quantification: a critical review with some new results and application. Res Popul Ecol. 23: 238-254.

Pino AJ, Maistrello L, Martinez MAL, Rubio MEO, Iglesias FJS. 2011. Spatial distribution of Cydia fagiglandana (Zeller) in an exploited holm oak (Quercus ilex L.) forest. Spanish J Agri Res. 9: 570579.

Rai S, Singh VS. 1993. Spatial distribution of aphids infesting cabbage and cauliflower. Indian J Entomol. 55: 178-183.

Sachan JN, Srivastava BP. 1972. Studies on the seasonal incidence of insect- pests of cabbage. Indian J Entomol. 34: 123-129.

Singh J, Chandel RS, Sharma PL. 2016. Spatial distribution and interaction of Eriosoma lanigerum and Apihelinus mali on apple under dry- temperate conditions of India. Proc. National Acad. Sci. Sect. B Biol. Sci. pp.22-23.

Southwood TRE, Henderson PA. 2000. Ecological Methods. 3rd ed. Blackwell Science, UK, 575 pp.

Vajargah MM, Golizadeh A, Rafieedastjerdi H, Zalucki MP, Hassanpour M and Naseri B. 2011. Population density and spatial distribution pattern of Hypera postica (Coleoptera: Curculionidae) in Ardabil, Iran. Notulae Botanicae Horti Agrobotanici. 39: 42-48.

Verma SC, Sharma PL, Bhardwaj RK. 2017. Spatial distribution of Brevicoryne brassicae (L.) in Cabbage in mid-hills of Himachal Pradesh, India. J Appl Nat Sci. 9: 1587-1591.

Verma, SC, Kanwar HS, Joshi AK. 2008. Population buildup, cabbage aphid, Brevicoryne brassicae (L.) on cabbage in relation to weather factors. Himachal J Agri Res. 34: 47-49.




How to Cite

Verma, S. C., Sharma, S., & Sharma, P. L. (2019). Spatial distribution of cabbage aphid, <i>Brevicoryne brassicae</i> (L.) and its parasitoid, <i>Diaeretiella rapae</i> (Mc Intosh) under sub-temperate conditions of Himachal Pradesh, India. Journal of Biological Control, 33(2), 103–108.



Research Articles