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Life Cycles of Neochetina bruchi Warner and Neochetina eichhorniae Hustache as Potential Biological Control Agents in the Semi Arid Zone of Nigeria

Received: 15 May 2015     Accepted: 22 May 2015     Published: 3 June 2015
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Abstract

Biological control is the use of living organism to suppress or control another living organisms, and it is cost-effective and environment-friendly. Water hyacinth Eichhornia crassipes infestations in Nigeria stifles economic uses of surface waters, and arthropods have been used as biological control agents to reduce water hyacinth infestations, with smooth water hyacinth weevils (Neochetina eichhorniae) and N. bruchi being the most utilized. However, these weevils are not easily available due to lack of insectaries in most ecological zones of Nigeria, which underscores the need for this study. The first step is to understand the life cycles of the weevils under the target ecological zones, so that they can be reared when the need arises. This study was conducted, with the aim of quantifying the lifecycles of Neochetina bruchi and Neochetina eichhorniae under the semi-arid Maiduguri conditions in Nigeria. The life cycles of the Neochetina species reared in the semi arid conditions show peculiar characteristics. No significant difference was observed between N. bruchi and N. eichhorniae in terms of egg duration. However, the larval stage of N. eichhorniae lasted for about 2 months, but only one in the case of month for N. bruchi. This study highlights the potentials of the two weevils (N. bruchi and N. eichhorniae) as potential biological control agents in the semi arid climate of Nigeria. The lifecycle of the weevils show that both weevils can act as biological control agents, but N. eichhorniae has greater potentials, given its longer-lasting larval stage.

Published in American Journal of Life Sciences (Volume 3, Issue 3)
DOI 10.11648/j.ajls.20150303.23
Page(s) 219-222
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

Neochetina Species, Weevils, Semi Arid Zone, Life Cycle, Acclimatization

References
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[2] Ghosheh H.Z. 2005. Constrains in Implementing Biological Control: A Review, Weed Biology and Management, 5: 83-92 doi: 10, 1111/j. 1445-6664.2005.001 63x.
[3] Pemberton, R.W. and Turner, C.E. 1990. Biological control of Senecio jacobaea in northern California, an enduring success. Entomophaga 35: 71-77.
[4] Adebayo R.A. and U.O. Uyi, 2010. Biological Control of Invasive Weeds Species: Nigerian experience. Int. J. Agric. Res., 5: 1100-1106.
[5] Denslow J.S. and Antonio 2005. After biocontrol: Assessing indirect effects of insect releases. Biological Control 35: 307-318.
[6] Julien M.H. and M.W. Griffiths, 1998. Biological Control of weeds: World catalogue of agents and their target weed. Fourth Edition. Wallingfort, UK: CAB International.
[7] Dubois, A. 2006. Species introductions and reintroductions, faunistic and genetic pollution: some provocative thoughts. Alytes, 24:147–164
[8] Harley K.L.S. 1990. The Role of Biological Control in the Management of Water Hyacinth. Biocontrol News and Information, 11, 11-22.
[9] Martin B.W. and FoxCroft L. C., 2001. Catalogue Biological Control Interventions of Invasive Alien Plants: Kruger National Park
[10] Jimenez 2003. Progress on water hyacinth (Eichhornia crassipes) management In R. Labrada (Ed.) Agriculture and Consumer Protection Weed management for developing countries (Addendum 1). Food and Agriculture Organisation, Rome, Italy
[11] Hill M.P., Cilliers C.J. and Neser S. 1999.Life History and Laboratory Host Range of Eccritotarsus catarinensis (Carvalho) (Heteroptera: Miridae), a New Natural Enemy Released on Water Hyacinth (Eichhornia crassipes (Mart.) Solms-Laub.) (Pontederiaceae) in South Africa. Biological Control 14: 127-133.
[12] Ciliers C.J, Hill, M.P., Ogwang, J.A. and Ajuonu, A. 2003. Aquatic weeds in Africa and their control. In: Neuenschwander, P., Borgemeister, C. and Langewald, J.,[eds.]. Biological Control in IPM systems in Africa. CAB International, Pp. 161- 178.
[13] Kolo, B., Dibal, J.M. and Ndakawa, I.I. 2009. Elemental Analysis of Tap and Borehole Waters in Maiduguri, Semi Arid Region, Nigeria. European J. Appl. Sci. 1(2): 26-29.
[14] Ogwang, J.A. and Molo, R. 1997. Biological control of water hyacinth in Uganda. 6th East African Biennial Weed Science Conference Proceedings, 247–253.
[15] Bashir M.O. El-Abjar Z.E., and Irving N.S.2004. Observations on the effect of the weevils Neochetina eichhorniae Warner and Neochetina bruchi Hustache on the growth of water hyacinth. Hydrobiol 110: 95-98.
[16] DeLoach, C. J., and H. A. Cordo. 1976. Life cycle and biology of Neochetina bruchi a weevil attacking water hyacinth in Argentina, with notes on N. eichhorniae. Ann. Entom. Soc. Am. 69(4): 643-652.
[17] DeLoach, C.J. and H.A. Cordo 1983. Control of water hyacinth by Neochetina bruchi (Coleoptera: Curculionidae: Bargoini) in Argentina. Environmental Entomology 12:19-23.
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    Hamsatu L. Hamadina, C. E. Anaso, A. Umar. (2015). Life Cycles of Neochetina bruchi Warner and Neochetina eichhorniae Hustache as Potential Biological Control Agents in the Semi Arid Zone of Nigeria. American Journal of Life Sciences, 3(3), 219-222. https://doi.org/10.11648/j.ajls.20150303.23

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    ACS Style

    Hamsatu L. Hamadina; C. E. Anaso; A. Umar. Life Cycles of Neochetina bruchi Warner and Neochetina eichhorniae Hustache as Potential Biological Control Agents in the Semi Arid Zone of Nigeria. Am. J. Life Sci. 2015, 3(3), 219-222. doi: 10.11648/j.ajls.20150303.23

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    AMA Style

    Hamsatu L. Hamadina, C. E. Anaso, A. Umar. Life Cycles of Neochetina bruchi Warner and Neochetina eichhorniae Hustache as Potential Biological Control Agents in the Semi Arid Zone of Nigeria. Am J Life Sci. 2015;3(3):219-222. doi: 10.11648/j.ajls.20150303.23

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  • @article{10.11648/j.ajls.20150303.23,
      author = {Hamsatu L. Hamadina and C. E. Anaso and A. Umar},
      title = {Life Cycles of Neochetina bruchi Warner and Neochetina eichhorniae Hustache as Potential Biological Control Agents in the Semi Arid Zone of Nigeria},
      journal = {American Journal of Life Sciences},
      volume = {3},
      number = {3},
      pages = {219-222},
      doi = {10.11648/j.ajls.20150303.23},
      url = {https://doi.org/10.11648/j.ajls.20150303.23},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajls.20150303.23},
      abstract = {Biological control is the use of living organism to suppress or control another living organisms, and it is cost-effective and environment-friendly. Water hyacinth Eichhornia crassipes infestations in Nigeria stifles economic uses of surface waters, and arthropods have been used as biological control agents to reduce water hyacinth infestations, with smooth water hyacinth weevils (Neochetina eichhorniae) and N. bruchi being the most utilized. However, these weevils are not easily available due to lack of insectaries in most ecological zones of Nigeria, which underscores the need for this study. The first step is to understand the life cycles of the weevils under the target ecological zones, so that they can be reared when the need arises.  This study was conducted, with the aim of quantifying the lifecycles of Neochetina bruchi and Neochetina eichhorniae under the semi-arid Maiduguri conditions in Nigeria. The life cycles of the Neochetina species reared in the semi arid conditions show peculiar characteristics. No significant difference was observed between N. bruchi and N. eichhorniae in terms of egg duration. However, the larval stage of N. eichhorniae lasted for about 2 months, but only one in the case of month for N. bruchi.  This study highlights the potentials of the two weevils (N. bruchi and N. eichhorniae) as potential biological control agents in the semi arid climate of Nigeria.  The lifecycle of the weevils show that both weevils can act as biological control agents, but N. eichhorniae has greater potentials, given its longer-lasting larval stage.},
     year = {2015}
    }
    

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  • TY  - JOUR
    T1  - Life Cycles of Neochetina bruchi Warner and Neochetina eichhorniae Hustache as Potential Biological Control Agents in the Semi Arid Zone of Nigeria
    AU  - Hamsatu L. Hamadina
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    AU  - A. Umar
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    N1  - https://doi.org/10.11648/j.ajls.20150303.23
    DO  - 10.11648/j.ajls.20150303.23
    T2  - American Journal of Life Sciences
    JF  - American Journal of Life Sciences
    JO  - American Journal of Life Sciences
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    EP  - 222
    PB  - Science Publishing Group
    SN  - 2328-5737
    UR  - https://doi.org/10.11648/j.ajls.20150303.23
    AB  - Biological control is the use of living organism to suppress or control another living organisms, and it is cost-effective and environment-friendly. Water hyacinth Eichhornia crassipes infestations in Nigeria stifles economic uses of surface waters, and arthropods have been used as biological control agents to reduce water hyacinth infestations, with smooth water hyacinth weevils (Neochetina eichhorniae) and N. bruchi being the most utilized. However, these weevils are not easily available due to lack of insectaries in most ecological zones of Nigeria, which underscores the need for this study. The first step is to understand the life cycles of the weevils under the target ecological zones, so that they can be reared when the need arises.  This study was conducted, with the aim of quantifying the lifecycles of Neochetina bruchi and Neochetina eichhorniae under the semi-arid Maiduguri conditions in Nigeria. The life cycles of the Neochetina species reared in the semi arid conditions show peculiar characteristics. No significant difference was observed between N. bruchi and N. eichhorniae in terms of egg duration. However, the larval stage of N. eichhorniae lasted for about 2 months, but only one in the case of month for N. bruchi.  This study highlights the potentials of the two weevils (N. bruchi and N. eichhorniae) as potential biological control agents in the semi arid climate of Nigeria.  The lifecycle of the weevils show that both weevils can act as biological control agents, but N. eichhorniae has greater potentials, given its longer-lasting larval stage.
    VL  - 3
    IS  - 3
    ER  - 

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Author Information
  • Department of Biological Sciences, Faculty of Science, University of Maiduguri, Maiduguri, Nigeria

  • Department of Biological Sciences, Faculty of Science, University of Maiduguri, Maiduguri, Nigeria

  • Department of Biological Sciences, Faculty of Science, University of Maiduguri, Maiduguri, Nigeria

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