German wasp | Vespula germanica

German wasp

Vespula germanica

Coral bush | Ardisia crenata

Coral bush

Ardisia crenata

Purple loosestrife | Lythrum salicaria

Purple loosestrife

Lythrum salicaria

Pom pom weed | Campuloclinium macrocephalum

Pom pom weed

Campuloclinium macrocephalum

Canarybird bush | Crotalaria agatiflora

Canarybird bush

Crotalaria agatiflora

Peanut butter cassia | Senna didymobotrya

Peanut butter cassia

Senna didymobotrya

Rubber vine | Cryptostegia grandiflora

Rubber vine

Cryptostegia grandiflora

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Environmental Programmes

In order to tackle our country’s socio-economic challenges, the government adopted the Outcomes based approach to improve government performance and providing focus on service delivery. find out more

A pilot study of the breeding system of Henry’s St Jon’s wort

Carryn Smith (University of KwaZulu Natal) and Ingrid Nanni (Invasive Species Programme, SANBI)

Henry’s St Jon’s wort,(Hypericum pseudohenryi) is an invasive alien plant found in the KwaZulu-Natal Drakensberg and Midlands that has been perceived as a threat.

This species can invade watercourses and undisturbed veld. As it is widely established, it was expected that the plant is able to self-pollinate with a large degree of success.

Pollinator exclusion experiments were conducted at three study sites in the Drakensberg and Midlands.

There were three different treatments: emasculated flowers, hand pollinated cross-pollination, and bagged flowers to exclude pollinators and encourage self-pollination.

The results show that while plants are able to undergo self-pollination and produce seeds, the number of seeds produced through self-pollination was significantly lower than the control samples, which were chosen at random on plant.

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Media

General News Updates

2019 National Symposium on Biological Invasio…

26-02-2019

This is your invitation to South Africa's 2019 National Symposium on Biological Invasions. The convention is hosted by the Centre for Invasion Biology (CIB), University of Stellenbosch, and the Biolo... Read more

2019 Invasive Species Training

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Invasive species training 2018 dates released

28-02-2018

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Communications post for Africa advertised

25-01-2018

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