Determining the effect of field sprayed pesticides on the important vine mealybug parasitoid, Anagyrus pseudococci

Project number
US E/A A4

Project title
Determining the effect of field sprayed pesticides on the important vine mealybug parasitoid, Anagyrus pseudococci

Project leader
Addison, P

Institution
University of Stellenbosch. Department of Entomology

Team members
Samways, M J
Walton, V M
Pringle, K L
Jelbert, C
Wohlfarther, M

Committee
Plant Protection

Completion date
2008

Project description
Vine mealybug (VMB) continues to be a key pest in South African vineyards.  Biological control is important for this pest but is not adequate for economic control.  Possible reasons for the lack of control could be the field effect of field sprayed pesticides on fecundity, and host searching ability.  Laboratory trials were previously done and these trials indicated a negative impact on parasitoids.  This impact may be either magnified or minimized under field conditions, but this information is not currently available. Trials previously done also did not include Anagyrus pseudococci and information on these biologically important parasitoids could be useful when making decisions regarding chemical interventions.

Final Report.pdf

– Record end –

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