Skip to main content

Susceptibility of schistosome host snails to predation by sciomyzid flies (Diptera: Sciomyzidae) in South Africa

Buy Article:

$52.90 plus tax (Refund Policy)

Abstract:

Afrotropical sciomyzids are predators of freshwater pulmonate snails. Studies have indicated that these flies may play a role in controlling medically important (target) snail populations, especially snail intermediate hosts of schistosomes. This study investigated the preferential feeding of Sepedon scapularis and S. neavei on four commonly-occurring molluscs in South Africa. The feeding behaviour of these flies was observed on a polyphagous diet consisting of Bulinus tropicus, Bu. forskalii, Bu. africanus and Biomphalaria pfeifferi. Laboratory experiments were set up with a constant number of 12 live snails per petri dish. Snail mortality was recorded daily for the duration of the larval period. Preliminary results show that both fly species fed preferentially upon Bu. africanus and Bi. pfeifferi. Overall, S. neavei killed more target snails than S. scapularis did. The preference of both fly species was Bi. pfeifferi, followed by Bu. africanus, Bu. tropicus and Bu. forskalii. These sciomyzid species are, therefore, potential candidates as biological control agents of medically-important snails. Whilst these findings are based on laboratory studies, they need to be validated by field trials.

Keywords: BIOLOGICAL CONTROL; SCHISTOSOMIASIS; SCIOMYZIDAE; SEPEDON; SNAILS

Document Type: Research Article

Publication date: August 1, 2005

More about this publication?
  • Co-Published by NISC and Taylor & Francis - Subscriber access available here
tandf/ajas/2005/00000030/00000002/art00011
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more