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Research Note

Cochineal Scale Dactylopius opuntiae controls Opuntia dillenii in Bundala National Park, Sri Lanka

Authors:

M. C. A. Galappaththi,

University of Peradeniya, Peradeniya, LK
About M. C. A.
Postgraduate Institute of Science
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N. M. Patabendige,

University of Ruhuna, Matara, LK
About N. M.
Department of Limnology and Water Technology, Faculty Fisheries and Marine Sciences and Technology
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S. S. Amarasinghe,

The Wildlife and Nature Protection Society of Sri Lanka (Ceylon), Rajamalwatte Road, Battaramulla, LK
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K. B. Ranawana,

University of Peradeniya, Peradeniya, LK
About K. B.
Department of Zoology, Faculty of Science
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W. A. I. P. Karunaratne

University of Peradeniya, Peradeniya, LK
About W. A. I. P.
Department of Zoology, Faculty of Science
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Abstract

Opuntia dillenii (Ker Gawler) is an invasive plant species in Bundala National Park. The outstanding success of the cochineal insect, Dactylopius spp. in bio-control of the prickly pear, Opuntia spp. has been investigated worldwide. The present study reports the emergence of D. opuntiae as a pest of O. dillenii after several decades of its introduction to Sri Lanka. The intensity of infestation was 100% along three of the five transects surveyed and the overall damage was more than 50%. This recent outbreak of D. opuntiae may have resulted from an unnoticed existing population of D. opuntiae in the vicinity.
How to Cite: Galappaththi, M. C. A., Patabendige, N. M., Amarasinghe, S. S., Ranawana, K. B., & Karunaratne, W. A. I. P. (2021). Cochineal Scale Dactylopius opuntiae controls Opuntia dillenii in Bundala National Park, Sri Lanka. Ceylon Journal of Science, 50(3), 297–301. DOI: http://doi.org/10.4038/cjs.v50i3.7912
Published on 06 Sep 2021.
Peer Reviewed

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