Effects of selected botanical insecticides on the behaviour and mortality of the glasshouse whitefly Trialeurodes vaporariorumand the parasitoid Encarsia formosa

Autor: Simmonds, M.S.J., Manlove, J.D., Blaney, W.M., Khambay, B.P.S.
Zdroj: Entomologia Experimentalis et Applicata; January 2002, Vol. 102 Issue: 1 p39-47, 9p
Abstrakt: Toxicity and behavioural bioassays were used to assess the lethal and sub‐lethal effects of two naphthoquinones from the Chilean plant Calceolaria andinaL. (Scrophulariaceae), two products derived from Azadirachta indicaand pyrethrum on the glasshouse whitefly, Trialeurodes vaporariorumWestwood, and the parasitoid Encarsia formosaGahan. The potential use of these botanicals in an Integrated Pest Management (IPM) programme is discussed. Pyrethrum was the most toxic botanical tested, but it was toxic to both the whitefly and parasitoid. The naphthoquinones showed potential for inclusion into an IPM programme if, by formulation, the toxicity towards the whitefly could be increased and the deterrent activity towards E. formosaadults decreased. Overall, the A. indica‐derived products had the most potential for use in an IPM system for the control of whitefly, which includes E. formosaas a biocontrol agent.
Databáze: Supplemental Index