Wheat ear insects in large scale winter wheat field in Salzmünde (SaxsonyAnhalt) central Germany were evaluated. The present study aimed at studying the abundance of wheat blossom midges WBM, Sitodoplosis mosellana (Géhin), Contarinia tritici (Kirby) and thrips, Li mothrips cerealium (Haliday) and Haplothrips tritici (Kurdjumov). Infestation in winter wheat during the growing seasons 2007, 2008 and 2009 was evaluated. Three methods were used to determine population densities and damage of wheat midges and thrips; pheromone traps, inspection of ear insects and water traps. A strong correlation between midge’s catches and weather conditions was obtained in field ob servations. A positive correlation between phe romone catches and ear infestation levels was recorded; it was higher in 2008 than in 2009. On the other hand, in 2007 there was no synchro nization; S. mosellana hibernated emerged too late to coincide with the susceptible wheat growth stages. The chemical treatment applied at 2008 for highly infestation; there were sig nificant differences in thrips and midge num bers between treated and untreated. Thrips and midge numbers were lower in the treated than in control. The high midge populations in water traps were recorded at growth stages 7779 and 83 and the low populations were recorded at GS 75 and 7577. This gives a reliable base for de cision making to midges control.
Varshney, R.K., Balyan H.S. and Langridge, P. (2006) Genome mapping and molecular breeding in plants. Cereals and Millets, 1(2), 79134.
Wheat Insect Control Recommendations (WICR). http:// www.utextension.utk.edu/fieldcrops/cotton/cotton_insects/pubs/PB1768Wheat.pdf
Bruce, T.J.A., Hooper, A. M., et al. (2007) Development of a pheromone trap monitoring system for Sitodiplosis mosellana, in the UK. Pest Management Science, 63(1), 4956.
Gaafar, N., C?ster, H. and Volkmar, C. (2009) Evaluation of ear infestation by thrips and wheat blossom midges in winter wheat cultivars. In: Feldmann, F., Alford, D.V. and Furk, C., Eds., Proceedings 3rd International Symposium on Plant Protection & Plant Health in Europe, Berlin, 349359.
Gaafar, N. and Volkmar, C. (2010) Assessment of wheat ear insects in winter wheat varieties in central Germany. Journal of Pest Science (Accepted).
Oakley, J. N., Talbot, G., Dyer, C., et al. (2005) Integrated control of wheat midge: Variety choice, use of pheromone traps & treatment thresholds. HGCA Project Report, 363, 65.
Lamb, R.J., Sridhar, P. Smith, M.A.H. and Wise, I.L. (2003) Oviposition preference and offspring performance of a wheat midge Sitodiplosis mosellana on defended and less well defended wheat plants. Environmental Ento mology, 32(2), 414420.
Kurppa, S.L.A. (1989) Wheat blossom midges, Sitodiplosis mosellana Géhin and Contarinia tritici (Kirby) in Finland during 19811987. Annales agriculturae Fenniae, 28, 8796.
Oakley, J.N. (1994) Orange wheat blossom midge: A literature review and survey of the 1993 outbreak. Research Review No. 28. HomeGrown Cereals Authority London, 51.
Olfert, O., Elliott, R.H., Hartley, S. and Zeleny, K. (2004) Forecast of wheat midge in Alberta and Saskatchewan for 2004, 2003 Crop variety highlights and insect pest forecasts. Saskatoon Research Centre Technical Bulletin No. 200401, 1415.
Pivnick, K.A. (1993) Response of males to female sex pheromone in the orange wheat blossom midge, Sitodiplosis mosellana. Journal of Chemical Ecology, 19(8), 16771689.
Oakley, J.N., Cumbleton, P.C., Corbett, S.J., Saunders, P. et al. (1998) Prediction of orange wheat blossom midge activity and risk of damage. Crop Protection, 17(2), 145 149.
Basedow, T. and Gillich H. (1982) Untersuchungen zur Prognose des Aufretens Contarinia tritici und Sitodiplosis mosellana. II. Faktoren, die ein Schadauftreten der Müc ken verhindern k?nnen. Anzeiger für Sch?dlingskunde Pflanzenschutz, 55(2), 8489.
Gries, R., Gries, G., Khaskin, G., King, S., Olfert, O. et al. (2000) Sex pheromone of orange wheat blossom midge, Sitodiplosis mosellana. Naturwissenschaften, 87, 450 454.
Smith, M. and Lamb, R. (2001) Factors influencing oviposition by Sitodiplosis mosellana (Diptera: Cecidomyiidae) on wheat spikes. Canadian Entomologist, 133(4), 533548.
Barker, A.M., Sanbrooke, K.J., Aebischer, N.J. (1997) The water trap colour preferences of farmland sawflies. Entomologia Experimentalis et Applicata, 85(1), 8386.
Kakol, E. and Kucharczyk, H. (2004) The occurrence of Thrips (Thysanoptera, Insecta) on winter and spring wheat in chosen regions of Poland. Acta Phytopathologica et Entomologica Hungarica, 39(13), 263269.
Larsson, H. (2005) Economic damage by Limothrips denticornis in rye, triticale and winter barley. Journal of Applied Entomology, 129(7), 386392.
Zawirska, I. and Walkowski, W. (2000) Fauna and importance of thrips (Thysanoptera) for rye and winter wheat in Poland. Journal of Plant Protection Research, 40(1), 3655.
Andjus L. (2004) The thrips fauna on wheat and on plants of the spontaneous flora in the bordering belt surrounding it. Acta Phytopathologica et Entomologica Hungarica, 39(13), 255261.
Volkmar, C., Schr?der, A., Gaafar, N., C?ster, H. and Spilke, J. (2009) Evaluierungsstudie zur Befallssituation von Thripsen in einem Winterweizensortiment. Mitte ilunge der Deutschen Gesellschaft für Allgmeine und Angewandte Entomolgie, 17(1), 227230.
Rieckmann, W., Block, T., Frosch, M., Heimbach, U., Lein, K.Lauenstein, G., Matthes, P., Steck, U. and Volkmar C. (2001) Deutscher Vorschlag für eine EPPORichtlinie zur Prüfung von Insektiziden gegen Gallmücken an Getreide. BBA 1.35.
Petersen, G. and Heimbach, U. (2009) Ergebnisprotokoll der 19. Tagung des DPGArbeitskreises Integrierter Pfl anzenschutz, Arbeitsgruppe, Sch?dlinge in Getreide und Mais. Journal Für Kulturpflanzen, 61(3), 178179.
Hübner, M. and Wittkopf, R. (2010) Pflanzenschutzemp fehlung des amtlichen Pflanzenschuttz dienstes. Ackerbau & Grünland, LLFG Jahresbericht. www.llfg.sachsen anhalt.de
Tottman, D.R. (1987) The decimal code for the growth stages of cereals, with illustrations. Annals of Applied Biology, 110(2), 441454.
Anonymous, List of authorized plant protection products in Germany with information on terminated authoriza tions. Bundesamt für Verbraucherschutz und Lebensmit telsicherheit 56, Auflage 2008.
Thomas, C.R. and Maurice, S.C. (2008) Statistix 9. Managerial Economics McGrawHill/Irwin, More infor mation at http://www.statistix.com
Ellis, S.A., Bruce, T.J.A., Smart, L.E., Martin, J.L., Snape, J. and Self, M. (2009) Integrated management strategies for varieties tolerant and susceptible to wheat midge. HGCA Project Report, 451.
Volkmar, C., Werner, C. and Matthes, P. (2008) On the occurrence and crop damage of wheat blossom midges (Contarinia tritici (Kby.) and Sitodiplosis mosellana (Geh.) in SaxonyAnhalt. Mitteilunge der Deutschen Gesellschaft für Allgmeine und Angewandte Entomolgie, 16(1), 305308.
Gaafar, N. and Volkmar, C. (2009) Monitoring system of orange wheat blossom midge, Sitodiplosis mosellana (Géhin) using pheromone trap in the central Germany. Mitteilunge der Deutschen Gesellschaft für Allgmeine und Angewandte Entomolgie, 17(1), 221225.
Olfert, O., Mukerji, M.k. and Doane, J.F. (1985) Rela tionship between infestation levels and yield loss caused by wheat midge, Sitodiplosis mosellana (Géhin) (Diptera: Cecidomyiidae), in spring wheat in Saskatchewan. Canadian Entomologist, 117(5), 593598.
Pivnick, K.A. and Labbe, E. (1993) Daily patterns of activity of females of the orange wheat blossom midge, Sitodiplosis mosellana. Canadian Entomologist, 125(4), 725736.