PEST RISK ANALYSIS (PRA) TRAINING Group Exercises Manual

APPENDIX 8
PEST RISK ANALYSIS TRAINING - GROUP EXERCISES MANUAL
Grove et al.: Thrips species associated with mango trees in South Africa 161
Figs 6-7. Numbers and species of thrips recorded from dispersal/emergence(D/E) traps in mango orchards. Horizontal
lines indicate the phenology of flowering and fruiting. 6, Numbers of Scirtothrips aurantii, T. acaciae and Thrips tenelIus
recorded from D/E traps in a Zill orchard at Friedenheim during 1996; 7, numbers of S. aurantii, T. acaciae and T.
tenellus recorded from D/E traps in a Sensation orchard at Friedenheim during 1996.
ACKNOWLEDGEMENTS
We thank M. Maritz, C. Neethling, M.S. de Beer
and S. Dreyer for assistance in the study. Thrips
were identified by M. Stiller and mites by E.A.
Ueckermann. Voucher specimens are deposited at
the ARC - Plant Protection Research Institute
(Biosystematics Division). This project was
funded by the South African Mango Growers’
Association and by the Agricultural Research
Council.
REFERENCES
ALGHALI, A.M. 1992. On-farm evaluation of control
strategies for insect pests in cowpea with emphasis
on flower thrips, Megalurothrips sjostedti Trybom
(Thysanoptera: Thripidae). Tropical Pest
Management 38: 420-424.
ANNECKE, D.P. & MORAN, V.C. 1982. Insects and
Mites of Cultivated Plants in South Africa.
Butterworths, Durban.
BEDFORD, E.C.G. 1943. The biology and economic
importance of South African citrus thrips,
Scirtothrips aurantii Faure. Publications of the
University of Pretoria, South Africa, Series 2,
Natural Science 7: 1-68.
BEN-DOV Y., WYSOKI, M., TOMER, E., OFEK, G.
& AVIN, Z. 1992. Observations on the phenology
and control of the western flower thrips,
Frankliniella occidentalis Pergande of mango
inflorescences in Israel. Alon Handtea 6: 497-502.
BRODSGAARD, H.F. 1989. Frankliniella occidentalis
(Thysanoptera: Thripidae) a new vest in Danish
glasshouses. Tidsskrift foer Planteavl 93: 83-91.
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