K.L. Painkra*, G.P. Painkra, P.K. Bhagat and A. Kerketta
Indira Gandhi Krishi Vishwavidyalaya, Rajmohini Devi College of Agriculture & Research Station, Ambikapur (Chhattissgarh) – 497001 India
Email: kanha_igkv@rediffmail.com
Received-02.11.2016, Revised-16.11.2016
Abstract: Survey of seasonal incidence and extent of damage caused by DBM (Plutella xylostella Linn.) was conducted at three locations having appreciable areas under cauliflower cultivation during the first fortnight of December to second fortnight of March. It was found that the pest infestation started on cauliflower crop from the first fortnight of January and the activity continued until second fortnight of March. The peak period of infestation was recorded in the second fortnight of February with an average of 7.1 larvae/plant leading to 32.9 per cent plant infestation. In general the incidence of DBM remained low to moderate from the first fortnight of January to the second fortnight of January. The maximum activity of P. xylostella confined in the second fortnight of January to the second fortnight of February. Hence, maximum plant protection measures should be taken up against the pest during this period. The plant infestation by the DBM on the cauliflower crop was observed from the first fortnight of January to the second fortnight of March. The maximum infestation of 32.9 per cent, out of which 12.5, 10.3 and 10.1 per cent plants were observed having less, moderate and high degree of damage, respectively. In the first and second fortnights of March the per cent plant infestation was suddenly decreased.
Keywords: Cauliflower, Diamondback moth damage, Population, Seasonal Incidence
REFERENCES
Anonymous (2002). Economic Survey of Govt. of India, 2001-02, p.191.
Chand, P. and Choudhary, R. (1977). Patterns of insect plant relationships determining susceptibility of food plants in the diamondback moth, Plutella xylostella (L) Curtis. Mysore. J. Agric. Sci. 11:547-549.
Chelliah, S. and Srinivasan, K. (1986). Bioecology and management of diamond back moth in India. In Diamond- back moth management. In : Proceeding of the First International Workshop, Tainan, Taiwan, 11-15 March, 1985; p. 63-76.
Choudhary, B.S. (1967). Survey of insect pest of crucifer and bionomics of diamondback moth, Plutella xylostella. M. Sc. (Ag.) Thesis, Department of Entomology, JNKVV. Jabalpur (M.P.), P. 20-45.
CIE (1967). Distribution Maps of Pests-Map No. 32 (Revised), Commonwealth Institute of Entomology, London, UK.
Devjam, P. and Singh, T.K. (1999). Field density and biology of diamondback moth on cauliflower in Manipur. J. Adv. Zool., 20 (1):53-55.
Dube, R. B. and Chand, P. (1977). Effect of food plants on the development of Plutella xylostella (L) (Lepidoptera, Plutellidae). Entomon. 2: 139-140.
Fletcher, T. B. (1914). Some South Indian Insects. Superintendent Government Press, Madras. pp. 565.
Hardy, J. E. (1938). Plutella maculipennis (Curt.) its natural and biological control in England. Bull. Entomol. Res. 29:343-372.
Jayarathnam, K. (1977). Studies on the population dynamics of the diamondback moth, Plutella xylostella (Linnaeus) (Lepidoptera: Yponomeutidae) and crop loss due to the pest in cabbage. Ph. D. Thesis. University of Agricultural Sciences. Bangalore. pp. 215.
Khaire, V.A.; Lawande, K.E.; Ajri, D.S. and Kale, P.N. (1987). Occurrence of insect pests on different cauliflower cultivars. Current Research Reporter, Mahatma Phule Agricultural University, 2 (2): 205-208.
Lee, H.S. (1986). Seasonal occurrence of the important insect pests on cabbage in Southern Taiwan. J. Agric. Res. China, 35(9): 530-542.
Singh, S. P. and Singh, D. (1982). Influence of cruciferous host plants on the survival and development of Plutella xylostella L. J. Res. Punjab Agric. Univ. 19:100-104.
Srinivasan, K. and Krishnakumar, N.K. (1982). Pest management in cabbage, In Ann. Rep. Ind. Inst. Hort. Res., Bangalore, India. pp. 80-81.
Talekar, N.S. (1990). Development of an integrated pest management program for the control of diamond-back moth on crucifers vegetables. In : Opena, T.T. and Kyomo, M.L. (ed.) Vegetable Research and Development in SADCC countries, AVRDC, Shanhua, Taiwan, p. 147-157.
Vishakantaiah, M. and Gowda, B.L.V. (1975). Record of Plutella xylostella (Linnaeus) as a new pest of Amaranthus viridis in Karnataka. Curr. Sci. 44:869.
Vishwakarma, R.K. (2002). Management of diamondback moth, P. xylostella (L.) on cabbage. M. Sc. Thesis, Department of Entomology, JNKVV, Jabalpur (M.P.).