Journal of
Entomology and Nematology

  • Abbreviation: J. Entomol. Nematol.
  • Language: English
  • ISSN: 2006-9855
  • DOI: 10.5897/JEN
  • Start Year: 2009
  • Published Articles: 124

Full Length Research Paper

A survey of geographical distribution and host range of white mango scale, Aulacaspis tubercularis Newstead (Hemiptera: Diaspididae) in Western Ethiopia

Ofgaa Djirata
  • Ofgaa Djirata
  • Department of Applied Biology, School of Applied Natural Science, Adama Science and Technology University, P. O. Box 54704, Addis Ababa, Ethiopia.
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Emana Getu
  • Emana Getu
  • Department of Zoological Sciences, College of Natural Sciences, Addis Ababa University, P. O. Box 1176, Addis Ababa, Ethiopia.
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R. Kahuthia-Gathu
  • R. Kahuthia-Gathu
  • Department of Biology and Technology, School of Agriculture and Enterprise Development, Kenyatta University, P. O. Box 43844-00100, Nairobi, Kenya.
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  •  Received: 13 December 2018
  •  Accepted: 06 June 2019
  •  Published: 31 July 2019

Abstract

White mango scale (WMS) is a sucking insect which poses severe threat to mango plantation. A survey of the distribution and host range of WMS, Aulacaspis tubercularis was conducted in western Ethiopia from May 10, 2016 to July 15, 2016. The surveys were started from Loko village, the focus of its first record, and extended over series of mango farms in the four cardinal directions. This study showed that WMS has already spread from Loko, the focus of its first record in the four cardinal directions. It spread over the air distances of 97, 98, 92 and 43 km to the east, south, west and north directions, respectively, with high and very high levels of severity statuses in most of the localities surveyed. It was found out that mango was the only host for WMS in western Ethiopia. It is recommended that understanding the mechanism by which WMS is spread is crucial to controlling it.

 

Key words: Infestation, Loko, severity, survey, Wollega, distance.