scholarly journals Opuntia stricta (erect prickly pear).

2020 ◽  
Author(s):  
Nick Pasiecznik ◽  
Julissa Rojas-Sandoval
Keyword(s):  
South Africa ◽  
Biological Control ◽  
Mediterranean Basin ◽  
New South ◽  
North African ◽  
African Countries ◽  
South Wales ◽  
Control Programmes ◽  
North African Countries ◽  
The Mediterranean Basin

Abstract Opuntia stricta is a cactus species native to the Americas that has been introduced worldwide as a popular ornamental. This species escaped from cultivation and has become invasive in many countries across Africa and Australia, but also more recently in the Mediterranean basin. Large and serious invasions have been reported in Australia, South Africa, Namibia, Yemen, India, Sri Lanka, Madagascar and lately also Spain and some North African countries. It has also become naturalized in many other regions (primarily in Africa and Asia) where it has not yet been recorded as a pest. In South Africa and Namibia large infestations have been reported, mainly in dry savanna bushlands, while in Australia all states are invaded with widespread populations invading southeastern Queensland and northeastern New South Wales. Successful biological control programmes have, however, severely reduced the spread of this species in many areas where introduced, though there continues to be a risk of further introduction through the nursery trade.

Opuntia stricta (erect prickly pear).

2021 ◽  
Author(s):  
Nick Pasiecznik ◽  
Julissa Rojas-Sandoval
Keyword(s):  
South Africa ◽  
Biological Control ◽  
Mediterranean Basin ◽  
New South ◽  
North African ◽  
African Countries ◽  
South Wales ◽  
Control Programmes ◽  
North African Countries ◽  
The Mediterranean Basin

Abstract Opuntia stricta is a cactus species native to the Americas that has been introduced worldwide as a popular ornamental. This species escaped from cultivation and has become invasive in many countries across Africa and Australia, but also more recently in the Mediterranean basin. Large and serious invasions have been reported in Australia, South Africa, Namibia, Yemen, India, Sri Lanka, Madagascar and lately also Spain and some North African countries. It has also become naturalized in many other regions (primarily in Africa and Asia) where it has not yet been recorded as a pest. In South Africa and Namibia large infestations have been reported, mainly in dry savanna bushlands, while in Australia all states are invaded with widespread populations invading southeastern Queensland and northeastern New South Wales. Successful biological control programmes have, however, severely reduced the spread of this species in many areas where introduced, though there continues to be a risk of further introduction through the nursery trade.

The main directions of scientific research in the seas of the Mediterranean basin (Based on materials from the 42nd Congress of CIESM, October 7-11, 2019, Cascais, Portugal)

2019 ◽  
pp. 52-58
Author(s):  
Vladimir A. Silkin
Keyword(s):  
Mediterranean Basin ◽  
Marine Ecosystems ◽  
North African ◽  
African Countries ◽  
Marine Microbiology ◽  
Biological Resources ◽  
Marine Biogeochemistry ◽  
The Subject ◽  
North African Countries ◽  
The Mediterranean Basin

Based on the proceeding of the 42nd CIESM Congress, reports are considered in such direction as “Physics and Climate of the Ocean”, “Marine Biogeochemistry”, “Marine Microbiology and Biotechnology” and “Biological Resources and Marine Ecosystems”. Compared to the previous congress, the number of sessions has significantly increased, the subject and structure of research have expanded. A large number of reports were presented at such sessions as Microplastic, Bioinvasion. The national structure of participants has changed towards an increase in the share of North African countries.

Equine encephalosis virus: evidence for circulation beyond southern Africa

2011 ◽  
Vol 140 (11) ◽  
pp. 1982-1986 ◽  
Author(s):  
C. A. L. OURA ◽  
C. A. BATTEN ◽  
P. A. S. IVENS ◽  
M. BALCHA ◽  
A. ALHASSAN ◽  
...  
Keyword(s):  
South Africa ◽  
West Africa ◽  
The Gambia ◽  
Sahara Desert ◽  
North African ◽  
African Countries ◽  
Geographical Barrier ◽  
Recent Outbreak ◽  
East And West ◽  
North African Countries

SUMMARYPrior to the recent outbreak of equine encephalosis in Israel in 2009, equine encephalosis virus (EEV) had only been isolated from equids in South Africa. In this study we show the first evidence for the circulation of EEV beyond South Africa in Ethiopia, Ghana and The Gambia, indicating that EEV is likely to be freely circulating and endemic in East and West Africa. Sequence analysis revealed that the EEV isolate circulating in The Gambia was closely related to an EEV isolate that was isolated from a horse from Israel during the EEV outbreak in 2009, indicating that the two viruses have a common ancestry. Interestingly horses in Morocco tested negative for EEV antibodies indicating that the Sahara desert may be acting as a geographical barrier to the spread to the virus to North African countries. This evidence for EEV circulation in countries in East and West Africa sheds light on how the virus may have reached Israel to cause the recent outbreak in 2009.

Lantana camara (lantana).

2021 ◽  
Author(s):  
Sarah E. Thomas ◽  
Julissa Rojas-Sandoval ◽  
Pedro Acevedo-Rodríguez
Keyword(s):  
South Africa ◽  
Biological Control ◽  
Control Measures ◽  
Economic Losses ◽  
Pests And Diseases ◽  
Control Programmes ◽  
Agricultural Weed ◽  
Successful Control ◽  
The Tropics ◽  
Ornamental Shrub

Abstract L. camara is a highly variable ornamental shrub, native of the neotropics. It has been introduced to most of the tropics and subtropics as a hedge plant and has since been reported as extremely weedy and invasive in many countries. It is generally deleterious to biodiversity and has been reported as an agricultural weed resulting in large economic losses in a number of countries. In addition to this, it increases the risk of fire, is poisonous to livestock and is a host for numerous pests and diseases. L. camara is difficult to control. In Australia, India and South Africa aggressive measures to eradicate L. camara over the last two centuries have been largely unsuccessful, and the invasion trajectory has continued upwards despite control measures. This species has been the target of biological control programmes for over a century, with successful control only being reported in a few instances.

Pseudomonas syringae pv. pisi. [Distribution map].

1993 ◽  
Author(s):  
Keyword(s):  
South Africa ◽  
New York ◽  
New Zealand ◽  
Pisum Sativum ◽  
Pseudomonas Syringae ◽  
New South ◽  
South Australia ◽  
Distribution Map ◽  
South Wales ◽  
New Distribution

Abstract A new distribution map is provided for Pseudomonas syringae pv. pisi (Sackett) Young, Dye & Wilkie. Hosts: Pea (Pisum sativum) and other Apiaceae. Information is given on the geographical distribution in Africa, Kenya, Malawi, Morocco, South Africa, Tanzania, Zimbabwe, Asia, India, Rajasthan, Himachal Pradesh, Indonesia, Israel, Japan, Lebanon, Nepal, Pakistan, Russia, Armenia, Kirghizistan, Australasia & Oceania, Australia, New South Wales, South Australia, Western Australia, Queensland, Tasmania, Victoria, New Zealand, Europe, Bulgaria, Denmark, France, Germany, Greece, Hungary, Italy, Netherlands, Romania, Russia, Ukraine, Voronezh, Moldavia, Switzerland, UK, England, Yugoslavia, North America, Bermuda, Canada, Alberta, British Columbia, Manitoba, Ontario, Quebec, Saskatchewan, Mexico, USA, New York, South America, Argentina, Colombia, Uruguay.

Fusarium andiyazi. [Distribution map].

2021 ◽  
Author(s):  
Keyword(s):  
South Africa ◽  
Zea Mays ◽  
Oryza Sativa ◽  
Sweet Sorghum ◽  
Tamil Nadu ◽  
New South ◽  
Saccharum Officinarum ◽  
Distribution Map ◽  
South Wales ◽  
New Distribution

Abstract A new distribution map is provided for Fusarium andiyazi Marasas, Rheeder, Lampr., K.A. Zeller and J.F. Leslie. (Sordariomycetes: Hypocreales: Nectriaceae). Hosts: sugarcane (Saccharum officinarum), rice (Oryza sativa), maize (Zea mays) and sweet sorghum (Sorghum bicolor). Information is given on the geographical distribution in Africa (Burkina Faso, Egypt, Ethiopia, Nigeria, South Africa, Tanzania), Asia (China, Jiangsu, Zhejiang, India, Tamil Nadu, Iran, Malaysia, Korea Republic, Syria, Vietnam), Europe (Italy), North America (Mexico, USA, Colorado, Nebraska), Oceania (Australia, New South Wales, Queensland) and South America (Argentina).

Sign in / Sign up

Export Citation Format

Share Document