Abstract
In this study, we investigated three different treatment options for controlling infestations of the aggressive Invasive Alien Plant Species (IAPS) Lantana camara at the Emantini Game Reserve in Swaziland. Treatment options included cut stump treatment, foliar spraying with herbicide and hand pulling using a manual plant puller. Results from this study indicated that foliar spraying significantly reduces new growth compared to other treatment options investigated. Associations between the various treatments and regrowth were not significant. Comparisons of the various treatments using a contribution index (CI) showed that foliar spraying is the most effective overall treatment for controlling L. camara at our study site. Foliar spraying worked best on plants less than 1.5 m high, but cut stump treatment was most effective for thickets where plants needed to be cut before being treated. To improve the effectiveness of foliar spraying, we suggest that this treatment option be used in combination with cut stump treatments. Findings from this study provide valuable information for the control of L. camara in different growth stages and levels of infestation. Recommendations for the control of this IAPS can be used in similar environments to effectively control infestations. Key words: Invasive alien plant control, invasive alien plant species (IAPS), Lantana camara, Swaziland.
Highlights
Lantana camara is an aggressive Invasive Alien Plant Species (IAPS) occurring throughout the southern African sub region including Swaziland
We look at three treatment options for controlling L. camara infestations, including cut stump, foliar spraying and hand pulling
Cut stump treatment is effective in areas where thickets slow foliar spraying, but costs can be very high when cutting thin stems that are below 1.5 m in height
Summary
Lantana camara is an aggressive Invasive Alien Plant Species (IAPS) occurring throughout the southern African sub region including Swaziland. The plant originates from Tropical America and was first recorded in South Africa in 1858 (Bromilow, 2010). It is considered one of the world’s top 10 worst weeds (Bromilow, 2010). Due to the extensive invasion of L. camara in the sub region and the impact it is having on indigenous plant species, it is Habitat preferences for L. camara are tropical, temperate climates with a minimum temperature of 5°C.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
