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First record of the impact of the parasitism of Cecidochares connexa (Diptera: Tephritidae) by a solitary larval ectoparasitoid in West Africa: Cause for concern?

Aigbedion-Atalor, P. O., Idemudia, I., Witt, A. B. R. and Day, M. D. (2019) First record of the impact of the parasitism of Cecidochares connexa (Diptera: Tephritidae) by a solitary larval ectoparasitoid in West Africa: Cause for concern? Journal of Plant Diseases and Protection, 126 (1). pp. 93-95. ISSN 1861-3837

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Article Link(s): https://doi.org/10.1007/s41348-018-0189-x

Abstract

Cecidochares connexa is currently the only effective biological control agent of Chromolaena odorata an invasive weed in West Africa. Recently, an ectoparasitoid species belonging to the Ormyrus genus was found parasitizing C. connexa in three regions of Ghana. Adult parasitoid emergence percentages varied between 16 and 21%. This raises concerns about its impact on C. connexa populations and the overall biocontrol of C. odorata. New field surveys to determine the distribution range of Ormyrus sp. and its impact on C. connexa should be quickly addressed in West Africa.

Item Type:Article
Business groups:Biosecurity Queensland
Keywords:Post-release evaluation Ormyrus sp. Stem-galling fly Chromolaena odorata West Africa
Subjects:Science > Invasive Species > Plants > Biological control
Plant pests and diseases > Weeds, parasitic plants etc
Deposited On:26 Mar 2019 01:28
Last Modified:20 May 2019 01:15

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