Invasive Alien Species in Kruger National Park: Early control efforts – The start of invasive alien plant control
Early control efforts in the KNP were aimed at the eradication of species such as syringa (Melia azedarach) on the Sabie, Crocodile and Nsikasi Rivers.
An attempt was made in 1956 to eradicate syringa by boring holes into the trunks and filling these with paraffin, and in 1957 through mechanical means.
The use of registered herbicides started during the 1960s and the herbicide KOP 250 was tested and proved effective, resulting in the formal introduction of herbicides into the control of alien plants in the KNP. A number of herbicide based control programmes followed over the ensuing years with herbicides being used to control woody shrubs, aquatic weeds, bush thickening and road verge encroachment.
Herbicides are highly effective tools when applied correctly, however, in the long-term additional tools are often required in developing an integrated management plan.
Alien Biota Team clearing water hyacinth
Chemical application use in field
Plant Identification in the field
Infested Site before clearing
Same site after active clearing
