Seasonal Population Dynamics of White Mango Scale, <i>Aulacaspis tubercularis</i> at Different Agro-ecologies and Its Cardinal Direction Preferences in Western Oromia, Ethiopia

Temesgen Fita; Emana Getu; Mulatu Wakgari; Kebede Woldetsadike

doi:doi:10.11648/j.aje.20230704.12

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Seasonal Population Dynamics of White Mango Scale, Aulacaspis tubercularis at Different Agro-ecologies and Its Cardinal Direction Preferences in Western Oromia, Ethiopia

Temesgen Fita^*, Emana Getu, Mulatu Wakgari, Kebede Woldetsadike

Published in American Journal of Entomology (Volume 7, Issue 4)

Received: 5 October 2023 Accepted: 9 December 2023 Published: 22 December 2023

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Abstract

Mango production is constrained by the infestation of arthropod pests, among which white mango scale, Aulacaspis tubercularis, is the most economically important insect pest causing devastating damage in Ethiopia. This study investigated the status of A. tubercularis in western Oromia, Ethiopia. A total of three districts (Guto Gida, Bako Tibe and Elu Gelan) and Nekemte city, among each, two orchards and five mango trees were selected purposively. Twelve leaves were collected monthly from each tree: from upper, middle and lower canopies and the A. tubercularis cluster (ATC) were recorded. RCBD was employed to determine the level ATC density. The results of the study revealed that A. tubercularis present in all study areas throughout the year with a fluctuating ATC density in which the highest ATC was concentrated on the upper side of the leaves. The abundance population density of the ATC population showed significant differences among the study months and cardinal directions, where the A. tubrcularis prefers the southern cardinal direction. The abundance of ATC population was significantly higher at Bako (p<0.05), where the ATC was abundant on the upper surface of the leaf in all study areas. There was a marked increase in ATC population density from March to mid-June with an increased precipitation and a swift decrease to nonexistent from mid-June to September followed by prolonged heavy precipitation. Furthermore, the study investigated the effect of basic climatic factors and cardinal direction differences on the population density of ATC, where the other contributing factors need to be investigated further.

Published in	American Journal of Entomology (Volume 7, Issue 4)
DOI	10.11648/j.aje.20230704.12
Page(s)	130-142
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), 2024. Published by Science Publishing Group

Keywords

Abundance, Aulacaspis tubercularis, Cardinal Direction, Clusters, Climatic Factors, Leaf Surface Preference, Population Density

References

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Fita, T., Getu, E., Wakgari, M., Woldetsadike, K. (2023). Seasonal Population Dynamics of White Mango Scale, Aulacaspis tubercularis at Different Agro-ecologies and Its Cardinal Direction Preferences in Western Oromia, Ethiopia. American Journal of Entomology, 7(4), 130-142. https://doi.org/10.11648/j.aje.20230704.12

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ACS Style

Fita, T.; Getu, E.; Wakgari, M.; Woldetsadike, K. Seasonal Population Dynamics of White Mango Scale, Aulacaspis tubercularis at Different Agro-ecologies and Its Cardinal Direction Preferences in Western Oromia, Ethiopia. Am. J. Entomol. 2023, 7(4), 130-142. doi: 10.11648/j.aje.20230704.12

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AMA Style

Fita T, Getu E, Wakgari M, Woldetsadike K. Seasonal Population Dynamics of White Mango Scale, Aulacaspis tubercularis at Different Agro-ecologies and Its Cardinal Direction Preferences in Western Oromia, Ethiopia. Am J Entomol. 2023;7(4):130-142. doi: 10.11648/j.aje.20230704.12

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@article{10.11648/j.aje.20230704.12,
  author = {Temesgen Fita and Emana Getu and Mulatu Wakgari and Kebede Woldetsadike},
  title = {Seasonal Population Dynamics of White Mango Scale, Aulacaspis tubercularis at Different Agro-ecologies and Its Cardinal Direction Preferences in Western Oromia, Ethiopia},
  journal = {American Journal of Entomology},
  volume = {7},
  number = {4},
  pages = {130-142},
  doi = {10.11648/j.aje.20230704.12},
  url = {https://doi.org/10.11648/j.aje.20230704.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.aje.20230704.12},
  abstract = {Mango production is constrained by the infestation of arthropod pests, among which white mango scale, Aulacaspis tubercularis, is the most economically important insect pest causing devastating damage in Ethiopia. This study investigated the status of A. tubercularis in western Oromia, Ethiopia. A total of three districts (Guto Gida, Bako Tibe and Elu Gelan) and Nekemte city, among each, two orchards and five mango trees were selected purposively. Twelve leaves were collected monthly from each tree: from upper, middle and lower canopies and the A. tubercularis cluster (ATC) were recorded. RCBD was employed to determine the level ATC density. The results of the study revealed that A. tubercularis present in all study areas throughout the year with a fluctuating ATC density in which the highest ATC was concentrated on the upper side of the leaves. The abundance population density of the ATC population showed significant differences among the study months and cardinal directions, where the A. tubrcularis prefers the southern cardinal direction. The abundance of ATC population was significantly higher at Bako (p<0.05), where the ATC was abundant on the upper surface of the leaf in all study areas. There was a marked increase in ATC population density from March to mid-June with an increased precipitation and a swift decrease to nonexistent from mid-June to September followed by prolonged heavy precipitation. Furthermore, the study investigated the effect of basic climatic factors and cardinal direction differences on the population density of ATC, where the other contributing factors need to be investigated further.
},
 year = {2023}
}

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TY - JOUR
T1 - Seasonal Population Dynamics of White Mango Scale, Aulacaspis tubercularis at Different Agro-ecologies and Its Cardinal Direction Preferences in Western Oromia, Ethiopia
AU - Temesgen Fita
AU - Emana Getu
AU - Mulatu Wakgari
AU - Kebede Woldetsadike
Y1 - 2023/12/22
PY - 2023
N1 - https://doi.org/10.11648/j.aje.20230704.12
DO - 10.11648/j.aje.20230704.12
T2 - American Journal of Entomology
JF - American Journal of Entomology
JO - American Journal of Entomology
SP - 130
EP - 142
PB - Science Publishing Group
SN - 2640-0537
UR - https://doi.org/10.11648/j.aje.20230704.12
AB - Mango production is constrained by the infestation of arthropod pests, among which white mango scale, Aulacaspis tubercularis, is the most economically important insect pest causing devastating damage in Ethiopia. This study investigated the status of A. tubercularis in western Oromia, Ethiopia. A total of three districts (Guto Gida, Bako Tibe and Elu Gelan) and Nekemte city, among each, two orchards and five mango trees were selected purposively. Twelve leaves were collected monthly from each tree: from upper, middle and lower canopies and the A. tubercularis cluster (ATC) were recorded. RCBD was employed to determine the level ATC density. The results of the study revealed that A. tubercularis present in all study areas throughout the year with a fluctuating ATC density in which the highest ATC was concentrated on the upper side of the leaves. The abundance population density of the ATC population showed significant differences among the study months and cardinal directions, where the A. tubrcularis prefers the southern cardinal direction. The abundance of ATC population was significantly higher at Bako (p<0.05), where the ATC was abundant on the upper surface of the leaf in all study areas. There was a marked increase in ATC population density from March to mid-June with an increased precipitation and a swift decrease to nonexistent from mid-June to September followed by prolonged heavy precipitation. Furthermore, the study investigated the effect of basic climatic factors and cardinal direction differences on the population density of ATC, where the other contributing factors need to be investigated further.

VL - 7
IS - 4
ER -

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Author Information

Temesgen Fita

School of Plant Sciences, College of Agriculture and Environmental Science, Haramaya University, Dire Dawa, Ethiopia; Department of Plant Sciences, Faculty of Agriculture, Wollega University, Nekemte, Ethiopia

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Emana Getu

Department of Zoological Sciences, Addis Ababa University, Addis Ababa, Ethiopia

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Mulatu Wakgari

School of Plant Sciences, College of Agriculture and Environmental Science, Haramaya University, Dire Dawa, Ethiopia

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Kebede Woldetsadike

School of Plant Sciences, College of Agriculture and Environmental Science, Haramaya University, Dire Dawa, Ethiopia

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Fita, T., Getu, E., Wakgari, M., Woldetsadike, K. (2023). Seasonal Population Dynamics of White Mango Scale, Aulacaspis tubercularis at Different Agro-ecologies and Its Cardinal Direction Preferences in Western Oromia, Ethiopia. American Journal of Entomology, 7(4), 130-142. https://doi.org/10.11648/j.aje.20230704.12

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Fita, T.; Getu, E.; Wakgari, M.; Woldetsadike, K. Seasonal Population Dynamics of White Mango Scale, Aulacaspis tubercularis at Different Agro-ecologies and Its Cardinal Direction Preferences in Western Oromia, Ethiopia. Am. J. Entomol. 2023, 7(4), 130-142. doi: 10.11648/j.aje.20230704.12

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AMA Style

Fita T, Getu E, Wakgari M, Woldetsadike K. Seasonal Population Dynamics of White Mango Scale, Aulacaspis tubercularis at Different Agro-ecologies and Its Cardinal Direction Preferences in Western Oromia, Ethiopia. Am J Entomol. 2023;7(4):130-142. doi: 10.11648/j.aje.20230704.12

Copy | Download

@article{10.11648/j.aje.20230704.12,
  author = {Temesgen Fita and Emana Getu and Mulatu Wakgari and Kebede Woldetsadike},
  title = {Seasonal Population Dynamics of White Mango Scale, Aulacaspis tubercularis at Different Agro-ecologies and Its Cardinal Direction Preferences in Western Oromia, Ethiopia},
  journal = {American Journal of Entomology},
  volume = {7},
  number = {4},
  pages = {130-142},
  doi = {10.11648/j.aje.20230704.12},
  url = {https://doi.org/10.11648/j.aje.20230704.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.aje.20230704.12},
  abstract = {Mango production is constrained by the infestation of arthropod pests, among which white mango scale, Aulacaspis tubercularis, is the most economically important insect pest causing devastating damage in Ethiopia. This study investigated the status of A. tubercularis in western Oromia, Ethiopia. A total of three districts (Guto Gida, Bako Tibe and Elu Gelan) and Nekemte city, among each, two orchards and five mango trees were selected purposively. Twelve leaves were collected monthly from each tree: from upper, middle and lower canopies and the A. tubercularis cluster (ATC) were recorded. RCBD was employed to determine the level ATC density. The results of the study revealed that A. tubercularis present in all study areas throughout the year with a fluctuating ATC density in which the highest ATC was concentrated on the upper side of the leaves. The abundance population density of the ATC population showed significant differences among the study months and cardinal directions, where the A. tubrcularis prefers the southern cardinal direction. The abundance of ATC population was significantly higher at Bako (p<0.05), where the ATC was abundant on the upper surface of the leaf in all study areas. There was a marked increase in ATC population density from March to mid-June with an increased precipitation and a swift decrease to nonexistent from mid-June to September followed by prolonged heavy precipitation. Furthermore, the study investigated the effect of basic climatic factors and cardinal direction differences on the population density of ATC, where the other contributing factors need to be investigated further.
},
 year = {2023}
}

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VL - 7
IS - 4
ER -

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