Laboratory Host Range Testing of the Flea Beetle, PSEUDOLAMPSIS GUTTATA (LeConte) (Coleoptera: Chrysomelidae), A Potential Natural Enemy for Red Water Fern, AZOLLA FILICULOIDES Lamarck (Pteridophyta: Azollaceae) in South Africa

2002 ◽  
Vol 56 (1) ◽  
pp. 79-83 ◽  
Author(s):  
M. P. Hill ◽  
I. G. Oberholzer
Keyword(s):  
South Africa ◽  
Host Range ◽  
Natural Enemy ◽  
Flea Beetle ◽  
Azolla Filiculoides ◽  
Range Testing

scholarly journals Host range testing of Tamarixia dryi (Hymenoptera: Eulophidae) sourced from South Africa for classical biological control of Trioza erytreae (Hemiptera: Psyllidae) in Europe

2019 ◽  
Vol 135 ◽  
pp. 110-116 ◽  
Author(s):  
Pablo Urbaneja-Bernat ◽  
Jesica Pérez-Rodríguez ◽  
Kerstin Krüger ◽  
José Catalán ◽  
Rositta Rizza ◽  
...  
Keyword(s):  
South Africa ◽  
Biological Control ◽  
Host Range ◽  
Classical Biological Control ◽  
Trioza Erytreae ◽  
Range Testing

Chaetomium strumarium. [Descriptions of Fungi and Bacteria].

2006 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
South Africa ◽  
Saudi Arabia ◽  
Great Britain ◽  
The Netherlands ◽  
Host Range ◽  
Geographical Distribution ◽  
Canary Islands ◽  
Democratic Republic ◽  
Democratic Republic Of Congo ◽  
Horticultural Crops

Abstract C. strumarium is described and illustrated. Information on diseases caused by C. strumarium, host range (field and horticultural crops, trees, dung, man and artefacts), geographical distribution (Algeria, Canary Islands, Democratic Republic of Congo, Egypt, Gambia, Kenya, Namibia, Nigeria, South Africa, Tanzania, USA, India, Nepal, Pakistan, Thailand, Western Australia, Germany, Great Britain, the Netherlands, Cyprus, Israel, Kuwait and Saudi Arabia), and transmission is provided.

scholarly journals Safety in New Zealand weed biocontrol a nationwide pathogen survey for impacts on nontarget plants

2009 ◽  
Vol 62 ◽  
pp. 41-49 ◽  
Author(s):  
N.W. Waipara ◽  
J. Barton ◽  
L.A. Smith ◽  
H.M. Harman ◽  
C.J. Winks ◽  
...  
Keyword(s):  
New Zealand ◽  
Host Range ◽  
Plant Pathogens ◽  
Research Programme ◽  
Disease Symptoms ◽  
Weed Biocontrol ◽  
Disease Surveys ◽  
Rubus Species ◽  
Disease Damage ◽  
Range Testing

The accuracy of host range testing in weed biocontrol programmes using plant pathogens has been questioned prompting a research programme into the field safety record of pathogens used for weed biocontrol in New Zealand Nationwide disease surveys were conducted from 20002009 and focused on species closely related to target weeds and therefore potentially most at risk of attack These surveys identified pathogens associated with any disease symptoms observed on nontarget hosts Disease damage attributable to biocontrol agents was observed on two nontarget plants Pustules of the blackberry rust Phragmidium violaceum were found on the endemic Rubus species R cissoides (bush lawyer tataramoa) at one location This result was predicted from host range safety tests conducted prior to its arrival in New Zealand No nontarget damage was observed in the remaining case studies confirming to date that all biocontrol pathogens are highly host specific to their target weeds

Pratylenchus in sugarcane: a diminishing problem?

2021 ◽  
pp. 66-72
Author(s):  
Prabashnie Ramouthar
Keyword(s):  
South Africa ◽  
Life Cycle ◽  
Host Range ◽  
Geographical Distribution ◽  
Economic Importance ◽  
Nematode Management ◽  
Pratylenchus Brachyurus ◽  
Damage Symptoms

Abstract This chapter focuses on the economic importance, host range, geographical distribution, damage symptoms and biology and life cycle of Pratylenchus brachyurus, P. neglectus, P. scribneri and P. zeae infesting sugarcane in South Africa. Information on their interactions with other nematodes and pathogens, the efficacy and optimization of some recommended integrated nematode management programmes and future nematode research requirements are also presented.

Nematodes and cestodes of rodents in South Africa: baseline data on diversity and geographic distribution

2019 ◽  
Vol 94 ◽  
Author(s):  
A. Spickett ◽  
K. Junker ◽  
G. Froeschke ◽  
V. Haukisalmi ◽  
S. Matthee
Keyword(s):  
South Africa ◽  
Host Range ◽  
Geographic Distribution ◽  
Host Species ◽  
Baseline Data ◽  
Helminth Species ◽  
Rodent Species ◽  
Helminth Parasites ◽  
Gastrointestinal Helminths ◽  
Naturally Occurring

Abstract Currently, descriptive information on the host range and geographic distribution of helminth parasites associated with naturally occurring rodents in South and southern Africa is scant. Therefore, we embarked on a countrywide study to: (1) identify gastrointestinal helminths and their host range, and (2) provide baseline data on the geographic distribution of helminths across the country. Altogether, 55 helminth taxa were recovered from at least 13 rodent species (n = 1030) at 26 localities across South Africa. The helminth taxa represented 25 genera (15 nematodes, nine cestodes and one acanthocephalan). Monoxenous nematodes were the most abundant and prevalent group, while the occurrence of heteroxenous nematodes and cestodes was generally lower. The study recorded several novel helminth–host associations. Single-host-species infections were common, although multiple-host-species infections by helminth species were also recorded. Monoxenous nematodes and some cestodes were recovered countrywide, whereas heteroxenous nematodes were restricted to the eastern regions of South Africa. The study highlights the as yet unexplored diversity of helminth species associated with naturally occurring rodent species and provides initial data on their geographical distribution in South Africa.

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