KNP cactus counts archive.xlsx (1.97 MB)
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KNP cactus counts archive

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posted on 13.02.2020, 07:08 authored by John HoffmannJohn Hoffmann

Evaluation, over 22 years, of biological control of an invasive cactus, Opuntia stricta, in the Kruger National Park, South Africa. Annually, from 1992 - 2013, the numbers of O. stricta plants, cladodes and fruits were recorded, along permanent transects, at four sites with different invasion-histories and with high- and low-densities of the cactus. The abundance of two biological control agent species was also monitored: (i) the cochineal insect, Dactylopius opuntiae, and (ii) the cactus moth, cactoblastis, Cactoblastis cactorum.



Plant Conservation Unit, Department of Biological Sciences