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volume 37 issue 6 (december 2014) : 675-678,   Doi: 10.5958/0976-0571.2014.00695.X

ECOLOGICAL LIFE TABLE AND RELATIVE TOXICITY OF INSECTICIDES AGAINST LEAF EATING CATERPILLAR, Spodoptera litura Fab. ON GROUNDNUT

N
Nukala Naveen Kumar
M
M.F. Acharya
M
M.V. Dabhi*
A
A.V. Khanapara
1Department of Entomology, College of Agriculture, Junagadh Agriculture University, Junagadh–362 001 India
Cite article:- Kumar Naveen Nukala, Acharya M.F., Dabhi* M.V., Khanapara A.V. (2025). ECOLOGICAL LIFE TABLE AND RELATIVE TOXICITY OF INSECTICIDES AGAINST LEAF EATING CATERPILLAR, Spodoptera litura Fab. ON GROUNDNUT. Legume Research. 37(6): 675-678. doi: 10.5958/0976-0571.2014.00695.X.

ABSTRACT

The life table and key mortality factors of Spodoptera litura Fabricius revealed that the mortality in the younger group larvae was 1.56 per cent due to bacterial infection and unknown reasons. Mortality in the older group larvae was 19.8 per cent due to diseases like NPV, N. rileyi, B. bassiana and parasites like Cotesia spp., and Tachinid maggot. Mortality in the pupal and adult stage was 7.98 & 2.15 per cent due to NPV and unknown reasons, respectively. Generation survival (SG) was worked out and it was 0.70. Value of trend index (I) was calculated to the tune of 0.018. Comparative relative toxicity of some modern insecticides against S. litura revealed that Emamectin benzoate was the most toxic and effective insecticide as its LC50 value was 0.000954, however, Spinosad was found to be the least toxic in which the LC50 value was worked out to the tune of 0.0158 in comparision to Chlorpyriphos, Flubendiamide, Rynaxypyr and Novaluron.

REFERENCES

  1. Ali, M. I. (1992). Incidence of natural mortality agents of the tobacco caterpillar, Spodoptera litura (Fabricius) Bangladesh J. Zool., 20: 363-365.
  2. Dhawan, A.K., Kaur, Ashwinder and Ravinder Kumar. (2007). Relative toxicity of new insecticides against Spodoptera litura Fabricius. Annl. Plant Prot. Sci., 15: 238-239.
  3. Finney, D. J. (1971). Probit Analysis, Cambridge University Press, Cambridge. pp 333.
  4. Firake, D.M. and Rachna, P. (2009). Relative toxicity of proclaim 5% SG (Emamectin benzoate) and Dipel 8L (Bacillus thuringiensis var. kurustaki) against Spodoptera litura Fabricius. by leaf roll method. Current Biotica, 3: 445-449.
  5. Gupta, G.P., Seema, R., Ajanta, B. and Raghuram, M. (2004). Relative toxicity of certain newer insecticides against Spodoptera litura Fabricius.Pest. Res. J., 16: 45-47.
  6. Harcourt, D.G. (1969). The development and use of life tables in the study of natural insect population.Ann. Rev. Entomol., 14: 175-176.
  7. Jadav, R.M., Bilapate, G.G. and Zote, V.K. (2006). Key mortality factors of Spodoptera litura (Fabricius) and Condica illecta (Walker) on sunflower. J. Maharastra Agric. Univ., 31: 361-362.
  8. Jagtap, C.R., Shetgar, S.S. and Nalwandikar, P.K. (2007). Life tables and key mortality factors of lepidopterous foliage pests of okra. Indian J. Ent., 69: 311-314.
  9. Jotwani, M.G., Rai, B.K. and Pradhan, S. (1971). Bioassay of comparative toxicity of some insecticides to the larvae of Prodenia litura Fab. (Noctuidae: Lepidoptera). Indian J. Ent., 28: 50-53.
  10. Kamble, S.K., Shetgar, S.S. and Nalwandikar, P.K. (2007). Field life- tables and key mortality factors of Helicoverpa armigera (Hubner) on tomato. Indian. J. Ent., 69: 38-41.
  11. Morris, R.F. and Miller, C.A. (1954). Development of life tables for spruce bud worm. Canadian. J. Zool., 32: 283-301.
  12. Paras, N. and Rakesh, R. (1999). Study of key mortality factors in the population dynamics of chickpea pod borer, Helicovera armigera (Hubner) (Noctuidae: Lepidoptera) infesting chickpea, Cicer arietinum L. Trop. Ecol., 40: 281-288.
  13. Patiat, D.D., Shetgar, S.S., Badgujar, A.G., Dhurgude, S.S. and Nalwandikar, P.K. (2009). Key mortality factors of Spodoptera litura (Fabricius) and Trichoplusia ni (Hubner) infesting cabbage. J. Biol. Control., 23: 57-61.
  14. Prasad, K.D., Madhumathi, T., Rao, P.A. and Rao, V.S. (2007). Toxicity of insecticides to resistant strain of Spodoptera litura (Fab.) on cotton. Annl. Plant Prot. Sci., 15: 77-82.
  15. Rojas, J.A., Gomez, S.J., Grillo, R.H., Alvares, H.U. and Perez, R.A. (2000). Natual enemies of Spodoptera furgiperda (J. E. Smith) in the province of Villa clara, Cuba. Centro Agricola., 27: 95-96.
  16. Shankarganesh, K., Subhramanyam, B., Gopalakrishnan, K., Dhingara, S. and Bhandari, J.K.S. (2009). Susceptibility of Spodoptera litura (Fabricius) from Tarai region to insecticides and its esterase profile. Indian J. Ent., 71: 120-124.
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    volume 37 issue 6 (december 2014) : 675-678,   Doi: 10.5958/0976-0571.2014.00695.X

    ECOLOGICAL LIFE TABLE AND RELATIVE TOXICITY OF INSECTICIDES AGAINST LEAF EATING CATERPILLAR, Spodoptera litura Fab. ON GROUNDNUT

    N
    Nukala Naveen Kumar
    M
    M.F. Acharya
    M
    M.V. Dabhi*
    A
    A.V. Khanapara
    1Department of Entomology, College of Agriculture, Junagadh Agriculture University, Junagadh–362 001 India
    Cite article:- Kumar Naveen Nukala, Acharya M.F., Dabhi* M.V., Khanapara A.V. (2025). ECOLOGICAL LIFE TABLE AND RELATIVE TOXICITY OF INSECTICIDES AGAINST LEAF EATING CATERPILLAR, Spodoptera litura Fab. ON GROUNDNUT. Legume Research. 37(6): 675-678. doi: 10.5958/0976-0571.2014.00695.X.

    ABSTRACT

    The life table and key mortality factors of Spodoptera litura Fabricius revealed that the mortality in the younger group larvae was 1.56 per cent due to bacterial infection and unknown reasons. Mortality in the older group larvae was 19.8 per cent due to diseases like NPV, N. rileyi, B. bassiana and parasites like Cotesia spp., and Tachinid maggot. Mortality in the pupal and adult stage was 7.98 & 2.15 per cent due to NPV and unknown reasons, respectively. Generation survival (SG) was worked out and it was 0.70. Value of trend index (I) was calculated to the tune of 0.018. Comparative relative toxicity of some modern insecticides against S. litura revealed that Emamectin benzoate was the most toxic and effective insecticide as its LC50 value was 0.000954, however, Spinosad was found to be the least toxic in which the LC50 value was worked out to the tune of 0.0158 in comparision to Chlorpyriphos, Flubendiamide, Rynaxypyr and Novaluron.

    REFERENCES

    1. Ali, M. I. (1992). Incidence of natural mortality agents of the tobacco caterpillar, Spodoptera litura (Fabricius) Bangladesh J. Zool., 20: 363-365.
    2. Dhawan, A.K., Kaur, Ashwinder and Ravinder Kumar. (2007). Relative toxicity of new insecticides against Spodoptera litura Fabricius. Annl. Plant Prot. Sci., 15: 238-239.
    3. Finney, D. J. (1971). Probit Analysis, Cambridge University Press, Cambridge. pp 333.
    4. Firake, D.M. and Rachna, P. (2009). Relative toxicity of proclaim 5% SG (Emamectin benzoate) and Dipel 8L (Bacillus thuringiensis var. kurustaki) against Spodoptera litura Fabricius. by leaf roll method. Current Biotica, 3: 445-449.
    5. Gupta, G.P., Seema, R., Ajanta, B. and Raghuram, M. (2004). Relative toxicity of certain newer insecticides against Spodoptera litura Fabricius.Pest. Res. J., 16: 45-47.
    6. Harcourt, D.G. (1969). The development and use of life tables in the study of natural insect population.Ann. Rev. Entomol., 14: 175-176.
    7. Jadav, R.M., Bilapate, G.G. and Zote, V.K. (2006). Key mortality factors of Spodoptera litura (Fabricius) and Condica illecta (Walker) on sunflower. J. Maharastra Agric. Univ., 31: 361-362.
    8. Jagtap, C.R., Shetgar, S.S. and Nalwandikar, P.K. (2007). Life tables and key mortality factors of lepidopterous foliage pests of okra. Indian J. Ent., 69: 311-314.
    9. Jotwani, M.G., Rai, B.K. and Pradhan, S. (1971). Bioassay of comparative toxicity of some insecticides to the larvae of Prodenia litura Fab. (Noctuidae: Lepidoptera). Indian J. Ent., 28: 50-53.
    10. Kamble, S.K., Shetgar, S.S. and Nalwandikar, P.K. (2007). Field life- tables and key mortality factors of Helicoverpa armigera (Hubner) on tomato. Indian. J. Ent., 69: 38-41.
    11. Morris, R.F. and Miller, C.A. (1954). Development of life tables for spruce bud worm. Canadian. J. Zool., 32: 283-301.
    12. Paras, N. and Rakesh, R. (1999). Study of key mortality factors in the population dynamics of chickpea pod borer, Helicovera armigera (Hubner) (Noctuidae: Lepidoptera) infesting chickpea, Cicer arietinum L. Trop. Ecol., 40: 281-288.
    13. Patiat, D.D., Shetgar, S.S., Badgujar, A.G., Dhurgude, S.S. and Nalwandikar, P.K. (2009). Key mortality factors of Spodoptera litura (Fabricius) and Trichoplusia ni (Hubner) infesting cabbage. J. Biol. Control., 23: 57-61.
    14. Prasad, K.D., Madhumathi, T., Rao, P.A. and Rao, V.S. (2007). Toxicity of insecticides to resistant strain of Spodoptera litura (Fab.) on cotton. Annl. Plant Prot. Sci., 15: 77-82.
    15. Rojas, J.A., Gomez, S.J., Grillo, R.H., Alvares, H.U. and Perez, R.A. (2000). Natual enemies of Spodoptera furgiperda (J. E. Smith) in the province of Villa clara, Cuba. Centro Agricola., 27: 95-96.
    16. Shankarganesh, K., Subhramanyam, B., Gopalakrishnan, K., Dhingara, S. and Bhandari, J.K.S. (2009). Susceptibility of Spodoptera litura (Fabricius) from Tarai region to insecticides and its esterase profile. Indian J. Ent., 71: 120-124.
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