Impact of Weather Factors on Coelaenomenodera elaiedis MLK (Coleoptera: Chrysomelidae) in Nigeria

Aneni T. I., Adaigbe V. C., Ogbebor C. O., Okere C. I. and Aghayedo C. O.
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Aneni T. I.: Entomology Division, Nigerian Institute for Oil Palm Research, Nigeria
Adaigbe V. C.: Entomology Division, Nigerian Institute for Oil Palm Research, Nigeria
Ogbebor C. O.: Entomology Division, Nigerian Institute for Oil Palm Research, Nigeria
Okere C. I.: Entomology Division, Nigerian Institute for Oil Palm Research, Nigeria
Aghayedo C. O.: Entomology Division, Nigerian Institute for Oil Palm Research, Nigeria

Journal of Biotechnology Research, 2020, vol. 6, issue 8, 115-128

Abstract: The leaf miner (Coelaenomenodera elaeidis) is a major pest of the oil palm. It breaks out in epidemic proportions periodically, resulting in severe leaf defoliation and consequently low fresh fruit bunch (FFA) yield. This study analyses temperature, rainfall, relative humidity, and leaf miner abundance records sampled in oil palm fields between 1976 and 1980 in the main station of the Nigerian Institute for Oil Palm Research (NIFOR). Data for temperature, rainfall, and relative humidity were obtained from NIFOR meteorological station. Mathematical relationships between the insect stages (larva, pupa, and adult) and weather factors (rainfall and temperature) were developed indicating that pest predictions can be made for different leaf miner stages using their corresponding model equations giving specific values for rainfall and temperature. Variations in the seasonal patterns of temperature and rainfall are of major significance as a cue to timing leaf miner abundance and would help in making better decisions regarding where farmer action can target pest control interventions, thereby contributing to ensure food security. The need for continuous monitoring has great potential for detection and control of insect pests in oil palm growing areas.

Keywords: Leaf miner; Weather variability; Oil palm; Pest predictions; Monitoring. (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:arp:rjbarp:2020:p:115-128

DOI: 10.32861/jbr.68.115.128

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