×

Warning

JUser: :_load: Unable to load user with ID: 504

Notice

Thank you for visiting our website.

Please note that the site is not fully functional at the moment as we are in the process of re-developing. We hope that you will find the available resources helpful in the meantime.

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

1 2 3 4 5 6 7

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

Understanding invasions and pest risks in agriculture: Current research status on invasive fruit flies (Diptera: Tephritidae) and new directions for management and intervention planning in South Africa

Understanding invasions and pest risks in agriculture: Current research status on invasive fruit flies (Diptera: Tephritidae) and new directions for management and intervention planning in South Africa
Minette Karsten1, Madeleine G. Barton2, Pia Addison2, Matthew F. Addison2John S. Terblanche1
1Centre for Invasion Biology, Department of Conservation Ecology and Entomology, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa.
2Department of Conservation Ecology and Entomology, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa.

Research in the field of biological invasions has increased dramatically in the last two decades, especially due to the impact of human activity such as, transport, travel and international trade. Therefore, developing a general management framework for monitoring and reporting biological invasions based on past research are crucial to assist decision making and actions to be taken. Here we make use of a range of different datasets for significant economic agricultural fruit fly pests to gain insight into potential intervention strategies. First we review the pest and invasion status, economic impact and current control of fruit flies in South Africa. Then we highlight the importance of monitoring data and how timing and location can influence monitoring outcomes. Moreover we show the importance of accurate identification of new interceptions and discuss some challenges in doing so. Furthermore we illustrate that once a species has been correctly identified as an invader, information on invasion pathways can be used to identify, monitor, reduce and, ultimately, remove existing or potential new, movement pathways, hindering the continued spread of the pest. Finally, once a species is established in a new area natural dispersal becomes an important consideration in the subsequent spread of the species. We demonstrate how population genetic estimates of landscape structure can provide insight into management units, and test whether the landscape offers any intrinsic resistance to this movement (e.g. natural barriers). Using fruit flies we illustrate the concepts outlined above in a management decision flowchart/tree for integrating pest management and invasion management into a common framework.

Read 2748 times Last modified on Tuesday, 03 May 2016 12:27

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

22-01-2019

During the past five years (2014-2018), ISSA invasive species trainers have trained 4 000 in the identification of invasive species and laws pertaining to invasive species across South Africa.  ... Read more

Alien Grass Working Group

04-09-2018

Who are we? The South African National Alien Grass Working Group was jointly initiated by the South African Biodiversity Institute (SANBI) and the Centre for Excellence in Invasion Biology (C·I·B) in... Read more

Permits for planting indigenous Cynodon?

01-03-2018

On 16 February, 2018, South Africa's Department of Environmental Affairs issued amendments to the regulations and lists relating to the National List of Invasive Species.  Updates to the draft&n... Read more

Invasive species training 2018 dates released

28-02-2018

Interested in invasive species?  How much do you know about NEMBA invasive species compliance for landowners and organs of state? The South African Green Industries Council (SAGIC) have released... Read more

Communications post for Africa advertised

25-01-2018

The Nature Conservancy has advertised a brand new post:  Communications Manager, Africa Region. Knowledge of invasive species and water would be an asset in this post. See details below:    Job Titl... Read more