Number of the records: 1
Effects of surrounding landscape on parasitism of alfalfa aphids in an IPM crop systém in northern Catalonia
- 1.0399240 - BC 2014 RIV NL eng J - Journal Article
Pons, X. - Lumbierres, B. - Comas, J. - Madeira, F. - Starý, Petr
Effects of surrounding landscape on parasitism of alfalfa aphids in an IPM crop systém in northern Catalonia.
Biocontrol. Roč. 58, č. 6 (2013), s. 733-744. ISSN 1386-6141. E-ISSN 1573-8248
Grant - others:Universitat de Lleida(ES) CO8026; Universitat de Lleida(ES) CO9036
Institutional support: RVO:60077344
Keywords : Aphididae * Braconidae * Aphidiinae
Subject RIV: EH - Ecology, Behaviour
Impact factor: 2.253, year: 2013
The parasitism of alfalfa aphids was determined during three crop growing seasons. The highest rates of parasitism of Acyrthosiphon pisum and Therioaphis trifolii occurred during the first-second and the fourth alfalfa inttercuts, respectively. The landscape surrounding the fields affected only parasitism rates of Ac.pisum. During the second intercut the forest area had a negative influence on parasitism rates, whereas the bordering surfaces of alfalfa and winter cereals had a positive influence. Correlations between the rates of parasitism and the rate of aphid populations were determined.Regulation of alfalfa aphids cannot be explained solely on the basis of one functional group of natural enemies.
Permanent Link: http://hdl.handle.net/11104/0228163
Number of the records: 1