Assessment of spatial distribution of Plutella xylostella on Cabbage (Brassica oleracea var. capitata)

KULDEEP SHARMA; M K MAHLA; R SWAMINATHAN; S RAMESH BABU; ASHOK KUMAR; K C AHIR; BEERENDRA SINGH; GAURANG CHHANGANI

doi:10.56093/ijas.v92i2.122213

Authors

KULDEEP SHARMA Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India
M K MAHLA Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India
R SWAMINATHAN Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India
S RAMESH BABU Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India
ASHOK KUMAR Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India
K C AHIR Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India
BEERENDRA SINGH Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India
GAURANG CHHANGANI Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India

https://doi.org/10.56093/ijas.v92i2.122213

Keywords:

Cabbage, Clumped distribution, Diamondback moth, Plutella xylostella, Population, Spatial distribution

Abstract

The present investigation aimed to study the distribution pattern of larvae and pupae of diamondback moth (DMB) on cabbage (Brassica oleracea var. capitata L.). The experiment was laid out in randomized block design at the Horticulture farm, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan during rabi 2019â€“20 and 2020â€“21. The present study was carried out to understand the pattern and behaviour of the spatial distribution of DBM in cabbage. The prevalence of DBM incidence was recorded in terms of the number of larvae and pupae per plant on ten randomly selected plants in each replication at weekly intervals. The various indices, viz. variance to mean ratio, exponentâ€“K, patchiness index, clumping index, mean colony size, mean clump size, Iwaoâ€™s patchiness regression and Taylorâ€™s power law were analyzed to test the dispersion behaviour of diamondback moth. The value of various indices exceeded unity in most of the weekly observations indicating clumped type of distribution of diamondback moth larvae and pupae on cabbage. Clumped distribution behaviour of DBM population can aid the understanding of the pest ecology and its management.

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References

Abraham E V and Padmanabhan M D. 1968. Bionomics and control of the diamondback moth, Plutella xylostella Linn. Indian Journal of Agricultural Sciences 20: 513–19.

Anuradha M. 1997. ‘Possibility on integration of bio-agent for the management of diamondback moth, Plutella xylostella (L.) (Lepidoptera: Yponumeutidae)’. PhD Thesis, University of Agricultural Sciences, Bengaluru, Karnataka.

Arbous A G and Kerrich J E. 1951. Accident statistics and the concept of accident proneness. Biometrics 7: 340–42. DOI: https://doi.org/10.2307/3001656

Cardleron J J and Hare C J. 1986. Control of diamondback moth in South East Asia by profenofos. Diamondback Moth Management. N S Talekar and T D Griggs (Eds), pp 347–57. (In) Proceedings of the First International Workshop, AVRDC, Taiwan,

David F N and Moore P G. 1954. Notes on contagious distribution in plant population. Annals of Botany 18(1): 47–53. DOI: https://doi.org/10.1093/oxfordjournals.aob.a083381

Dubey R B and Chand P. 1977. Effect of food plants on the development of Plutella xylostella (L.) (Lepidoptera, Plutellidae). Entomon 2: 139–40.

Farias R S, Barbosa C and Busoli C. 2001. Spatial Distribution of the Fall Armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) on Corn Crop. Neotropical Entomology 30(4): 681–89. DOI: https://doi.org/10.1590/S1519-566X2001000400025

Ferdinando B, Andrea S and Rocco A. 2012. Evaluating the spatial distribution of Dociostaurus maroccanus (Thunberg) egg pods using different sampling designs. Bulletin of Insectology 65(2): 223–31.

Goswami T N and Mukhopadhyay A K. 2013. Distribution pattern of diamondback moth, Plutella xylostella (L.) on cabbage under Gangetic alluvial condition of West Bengal. HortFlora Research Spectrum 2(2): 145–49.

Iwao S. 1968. A new regression method for analysing the aggregation pattern of animal populations. Research on Population Ecology 10: 1–20. DOI: https://doi.org/10.1007/BF02514729

Lloyd M. 1967. Mean crowding. Journal of Animal Ecology 36: 1–30. DOI: https://doi.org/10.2307/3012

Subharani S and Singh T K. 2009. Spatial distribution of Plume Moth, Exelastis atomosa (Wals) on Cajanus cajan (L.) Trends in Biosciences 2: 20–22.

Subharani S and Singh T K. 2011. Assessment of spatial distribution of pod borer, Cydia ptychora (Meyrick) on Pigeon pea. Journal of Ecology and the Natural Environment 3(11): 360–64.

Sun C N, Wu T, Chen J and Lee W. 1986. Insecticide resistance in Diamondback moth. Paper presented at the diamondback moth management. (In) Proceedings of the First International Workshop, Shanhua, Taiwan.

Tanigoshi L K, Browne R W and Hoyt S T. 1975. A study on the dispersion pattern of foliage injury by Tetranychus medanieli (Acarina: Tetranychidae) in sample apple ecosystem. Canadian Entomologist 107: 439–46. DOI: https://doi.org/10.4039/Ent107439-4

Taylor L R. 1961. Aggregation, variance and the mean. Nature 189: 732–35. DOI: https://doi.org/10.1038/189732a0

Zhou L, Huang J and Xu H. 2011. Monitoring resistance of field populations of diamondback moth Plutella xylostella L. (Lepidoptera: Yponomeutidae) to five insecticides in South China: A ten-year case study. Crop Protection 30(3): 272–78. DOI: https://doi.org/10.1016/j.cropro.2010.10.006