Improving monitoring and decision support tools for the invasive alien maize pest western corn rootworm, Diabrotica v. virgifera (Coleoptera: Chrysomelidae)
Thesis supervisor: Stefan Toepfer
co-supervisor: Márk Szalai
Location of studies (in Hungarian): Mainly southern Hungary, partly Dep. of IPM, Plant Protection Institute NVI, Godollo campus, SZIE Abbreviation of location of studies: HU
Description of the research topic:
Improving monitoring and decision support tools for the invasive alien maize pest western corn rootworm, Diabrotica v. virgifera (Coleoptera: Chrysomelidae)
Specific objectives:
a) Generalise temporal population dynamic patterns of Diabrotica v. virgifera under Hungarian conditions using the country wide monitoring data collected by Plant Protection Directorates across Hungary in the early 2000s, or through life history field trials (Ripka et al. 1999; Bayar et al. 2003; Zseller Hatala et al. 2006)(Toepfer and Kuhlmann 2006).
b) Correlating Diabrotica v. virgifera temporal population dynamic patterns of the western corn rootworm, Diabrotica v. virgifera, with environmental factors to develop regionally feasible and validated forecasting models for this important invasive maize pest, such as degree day models for larval hatch and adult emergence (Schaafsma et al. 1991; Levine et al. 1992; Godfrey et al. 1995; Wilstermann and Vidal 2013).
c) Relate trap captures of adult Diabrotica v. virgifera to absolute population densities of this pest in maize to allow the development of threshold models (Bazok et al. 2011; Kos et al 2014).
Ref
Bayar K, Komaromi J, Kiss J, Edwards CR, Hatala-Zseller I, Szell E, 2003. Characteristics of a population of western corn rootworm (Diabrotica virgifera virgifera) in continuous maize. Novenytermeles 52, 185–202.
Bažok R, Sivčev I, Kos T, Barčic´ JI, Kiss J, Jankovič S, 2011. Pherocon AM trapping and the ‘whole plant count’ method - a comparison of two sampling techniques to estimate the WCR adult densities in Central Europe. Cereal Res. Commun. 39, 298–305.
Godfrey LD, Meinke LJ, Wright RJ, Hein GL, 1995. Environmental and Edaphic Effects on Western Corn-Rootworm (Coleoptera, Chrysomelidae) Overwintering Egg Survival. J. Econ. Entomol. 88, 1445–1454.
Kos T, Bažok R, Gunjača J, Barčic´ JI, 2014. Western corn rootworm adult captures as a tool for the larval damage prediction in continuous maize. J. Appl. Entomol. 138, 173–182.
Levine E, Oloumisadeghi H, Ellis CR, 1992. Thermal Requirements, Hatching Patterns, and Prolonged Diapause in Western Corn-Rootworm Eggs. J. Econ. Entomol. 85, 2425–2432.
Ripka G, Princzinger G, Zseller Hatala I, Vasas L, Toth B, Kiss J, Edwards CR, 1999. Recent data to the distribution of western corn rootworm (Diabrotica virgifera virgifera LeConte) in Hungary. Acta Phytopathol. Entomol. Hungarica 34, 387–392.
Schaafsma AW, Whitfield GH, Ellis CR, 1991. A Temperature-Dependent Model of Egg Development of the Western Corn-Rootworm. Can. Entomol. 123, 1183–1197.
Toepfer S, Kuhlmann U, 2006. Constructing life-tables for the invasive maize pest Diabrotica virgifera virgifera (Col.; Chrysomelidae) in Europe. J. Appl. Entomol. 130, 193–205.
Wilstermann A, Vidal S, 2013. Western corn rootworm egg hatch and larval development under constant and varying temperatures. J. Pest Sci. (2004). 86, 419–428.
Zseller Hatala I, Hegyi T, Ripka G, Toth B, Vasas L, Voros G, 2006. Experiences of several years of control of western corn rootworm larvae in Hungary, in: 22 IOBC IWGO Conference. IOBC, Vienna, Austria, 61.
Required language skills: English Number of students who can be accepted: 1
Deadline for application: 2020-12-10
2024. IV. 17. ODT ülés Az ODT következő ülésére 2024. június 14-én, pénteken 10.00 órakor kerül sor a Semmelweis Egyetem Szenátusi termében (Bp. Üllői út 26. I. emelet).
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