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Current IssueEditorial BoardOnline First ArticlesArchive

volume 37 issue 3 (september 2003) : 169 - 174

INSECTICIDAL EFFECTS OF DENNE7TfA TRIPETALA (BAK.F.) AND PIPER GUINEENSE (THONN,) AGAINST IMMATURE CALLOSOBRUCHUSMACULATUS(FAB.) (COLEOPTERA: BRUCHIDAE) ON STORED COWPEA, VIGNA UNGUICULAVt WALP.

O
O.C. Umeozor*
P
P.O. Pessu1
1Department of Animal and Environmental Biology, University of Port Harcourt, Box 384, Uniport Post Office Port Harcourt, Nigeria

  • Submitted|

  • First Online |

  • doi

Cite article:- Umeozor* O.C., Pessu1 P.O. (2025). INSECTICIDAL EFFECTS OF DENNE7TfA TRIPETALA (BAK.F.) AND PIPER GUINEENSE (THONN,) AGAINST IMMATURE CALLOSOBRUCHUSMACULATUS(FAB.) (COLEOPTERA: BRUCHIDAE) ON STORED COWPEA, VIGNA UNGUICULAVt WALP.. Indian Journal of Agricultural Research. 37(3): 169 - 174. doi: .

ABSTRACT

Laboratory experiments were conducted to assess the insecticidal effects of seed powders of Dennettia tripetala (Pepper fruit) and Piper guineense (Black papper) on the egg, larva, and pupa of Callosobruchus maculatus. Results indicated that each of these peppers was effective in the control of C. maculatus at the egg stage. Virtually no emergence occurred when treatment of both peppers was applied within the first three days of oviposition. Beyond this period, significant emergence occurred. Results also indicated that these peppers were not effective during the larval and pupal stages. This is attributable to the fact that the larva and pupa develop within a single seed and are thus, shielded from the effects of these peppers. In contrast, the eggs are attached singly to the seeds. This study has, therefore, revealed that for the effective control of this pest, it is critical to apply these peppers before egg hatch; once the egg hatches and the larva bores into the seed, control is uncertain.

KEYWORDS

    REFERENCES

    1. Abate, T. et al (2000). Annu. Rev. Entomol, 45: 631-659. .
    2. Akingohungbe, A.E. (1976). Trop. Grain Legume BuD., 5: 11-13. . .'
    3. . Caswell, G.H. (1976). In: Entomology and the Nigerian Economy (Youdeowei, A. ed). Entomol.Soc. of Nigeria Occassional Publ. No. 18: 131-142.
    4. Caswell, G.H. (1981). SamaruJAgric. Res., 1:11-19.
    5. Caswell, G.H. and Akibu, S. (1980). Trop. Grain Legume BuD., 17/18: 9-11.
    6. Dalziel, J.M. (1937). The Useful Plants of West Tropical Africa. The Crown Agents for the Colonies, London, 612 pp FAO (Food and Agricultural Organization) (1998). Inventory of Obsolete, Unwanted and/or Banned Pesticides. FAO, Rome, 247 pp.
    7. Gakuru, S. and Foua-Bi, K. (1996). Cahiers Agricultures, 5: 39-42.
    8. Gomez, KA and Gomez, A.A. (1984). Statistical Procedures for AgricultunliResearch., 2nd edn. John Wiley, New York, 680 pp.
    9. Mbata, G.N. etal (1995). DiscoveryandlnnovaUon,.7: 139-147.
    10. NRI (Natural Resource Institute) (1996). Insect Pests of Nigerian Crops: Identification, Biology, and Control. NRI, Chatham, UK 253pp. . Oji, O. et al (1992). Atoterpia,63: 181-183.
    11. Ojinnaka, C.M. (1987). In: Tanner's Guide to Nigerian Plants. Laser Publ. Port Harcourt, Nigeria.
    12. Okonkwo, E.U. and Okoye, w.1. (1996). Int. J. Pest Mgmt., 42: 143-146,
    13. 174 INDIAN JOURNAL OF AGRICULTURAL RESEARCH
    14. Prates, H.J. et al. (1998). J.Stored Prod. Res. , 34: 243-249.
    15. Prevett, P.E. (1961). Bull. Entomol. Res., 52: 635-646.
    16. Singh. S.R.et a/. (1990). In: Insect Pests of Tropical Food Legumes (Singh, S.R. ed.). JOhn Wiley, Chichester, U.K 43-89.
    17. Smith, JJi), (1989). Bull. Chern. Soc. Ethiopia, 3: 61-67.
    18. Sokal. R.R.and Rohlf, F.J. (1981). Biometry, 2nd edn. W.H. Freeman, New York, 859pp.
    19. Steel,R.G.D. and Torrie, J.H. (1980). Principles and Procedures of Statistics. A Biometrical Approach, 2nd edn. McGraw-Hili, New York. 633 pp.
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      volume 37 issue 3 (september 2003) : 169 - 174

      INSECTICIDAL EFFECTS OF DENNE7TfA TRIPETALA (BAK.F.) AND PIPER GUINEENSE (THONN,) AGAINST IMMATURE CALLOSOBRUCHUSMACULATUS(FAB.) (COLEOPTERA: BRUCHIDAE) ON STORED COWPEA, VIGNA UNGUICULAVt WALP.

      O
      O.C. Umeozor*
      P
      P.O. Pessu1
      1Department of Animal and Environmental Biology, University of Port Harcourt, Box 384, Uniport Post Office Port Harcourt, Nigeria

      • Submitted|

      • First Online |

      • doi

      Cite article:- Umeozor* O.C., Pessu1 P.O. (2025). INSECTICIDAL EFFECTS OF DENNE7TfA TRIPETALA (BAK.F.) AND PIPER GUINEENSE (THONN,) AGAINST IMMATURE CALLOSOBRUCHUSMACULATUS(FAB.) (COLEOPTERA: BRUCHIDAE) ON STORED COWPEA, VIGNA UNGUICULAVt WALP.. Indian Journal of Agricultural Research. 37(3): 169 - 174. doi: .

      ABSTRACT

      Laboratory experiments were conducted to assess the insecticidal effects of seed powders of Dennettia tripetala (Pepper fruit) and Piper guineense (Black papper) on the egg, larva, and pupa of Callosobruchus maculatus. Results indicated that each of these peppers was effective in the control of C. maculatus at the egg stage. Virtually no emergence occurred when treatment of both peppers was applied within the first three days of oviposition. Beyond this period, significant emergence occurred. Results also indicated that these peppers were not effective during the larval and pupal stages. This is attributable to the fact that the larva and pupa develop within a single seed and are thus, shielded from the effects of these peppers. In contrast, the eggs are attached singly to the seeds. This study has, therefore, revealed that for the effective control of this pest, it is critical to apply these peppers before egg hatch; once the egg hatches and the larva bores into the seed, control is uncertain.

      KEYWORDS

        REFERENCES

        1. Abate, T. et al (2000). Annu. Rev. Entomol, 45: 631-659. .
        2. Akingohungbe, A.E. (1976). Trop. Grain Legume BuD., 5: 11-13. . .'
        3. . Caswell, G.H. (1976). In: Entomology and the Nigerian Economy (Youdeowei, A. ed). Entomol.Soc. of Nigeria Occassional Publ. No. 18: 131-142.
        4. Caswell, G.H. (1981). SamaruJAgric. Res., 1:11-19.
        5. Caswell, G.H. and Akibu, S. (1980). Trop. Grain Legume BuD., 17/18: 9-11.
        6. Dalziel, J.M. (1937). The Useful Plants of West Tropical Africa. The Crown Agents for the Colonies, London, 612 pp FAO (Food and Agricultural Organization) (1998). Inventory of Obsolete, Unwanted and/or Banned Pesticides. FAO, Rome, 247 pp.
        7. Gakuru, S. and Foua-Bi, K. (1996). Cahiers Agricultures, 5: 39-42.
        8. Gomez, KA and Gomez, A.A. (1984). Statistical Procedures for AgricultunliResearch., 2nd edn. John Wiley, New York, 680 pp.
        9. Mbata, G.N. etal (1995). DiscoveryandlnnovaUon,.7: 139-147.
        10. NRI (Natural Resource Institute) (1996). Insect Pests of Nigerian Crops: Identification, Biology, and Control. NRI, Chatham, UK 253pp. . Oji, O. et al (1992). Atoterpia,63: 181-183.
        11. Ojinnaka, C.M. (1987). In: Tanner's Guide to Nigerian Plants. Laser Publ. Port Harcourt, Nigeria.
        12. Okonkwo, E.U. and Okoye, w.1. (1996). Int. J. Pest Mgmt., 42: 143-146,
        13. 174 INDIAN JOURNAL OF AGRICULTURAL RESEARCH
        14. Prates, H.J. et al. (1998). J.Stored Prod. Res. , 34: 243-249.
        15. Prevett, P.E. (1961). Bull. Entomol. Res., 52: 635-646.
        16. Singh. S.R.et a/. (1990). In: Insect Pests of Tropical Food Legumes (Singh, S.R. ed.). JOhn Wiley, Chichester, U.K 43-89.
        17. Smith, JJi), (1989). Bull. Chern. Soc. Ethiopia, 3: 61-67.
        18. Sokal. R.R.and Rohlf, F.J. (1981). Biometry, 2nd edn. W.H. Freeman, New York, 859pp.
        19. Steel,R.G.D. and Torrie, J.H. (1980). Principles and Procedures of Statistics. A Biometrical Approach, 2nd edn. McGraw-Hili, New York. 633 pp.
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