Skip to main content

Impact of different densities of Neohydronomus affinis (Coleoptera:Curculionidae) on Pistia stratiotes (Araceae) under laboratory conditions

Buy Article:

$51.35 plus tax (Refund Policy)

Abstract:

In Senegal, a laboratory study was conducted in 2005 to ascertain the effect that different numbers of the host-specific weevil Neohydronomus affinis Hustache (Coleoptera: Curculionidae) per plant had on selected plant growth parameters of its target weed, water lettuce Pistia stratiotes Linnaeus (Araceae). Compared to the control, the weevil caused a significant reduction in all parameters measured, except for daughter plant production. There were no significant differences in impact on the plant between the three different densities of weevil (one, two and three pairs per plant). Under laboratory conditions one pair per plant is deemed sufficient to effect complete control of water lettuce over a six-week period.

Keywords: biological control; complete control; inoculum

Document Type: Research Article

DOI: http://dx.doi.org/10.2989/16085914.2010.538505

Affiliations: 1: Department of Zoology and Entomology, Rhodes University, Grahamstown, South Africa,Plant Protection Directorate, Thiaroye, Senegal 2: Department of Zoology and Entomology, Rhodes University, Grahamstown, South Africa

Publication date: December 1, 2010

More about this publication?
  • Co-Published by NISC and Taylor & Francis - Subscriber access available here
tandf/ajas/2010/00000035/00000003/art00007
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
ingentaconnect 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