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Branson, T.F., Sutter, G.R., Fisher, J.R. 1980. Plant response to stress induced by artificial infestations of western corn rootworm. Environ. Entomol. 9 :253

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39 42 Kuhlmann, U. and van der Burgt, W. A. C. M. (1998): Possibilities for biological control of the western corn rootworm, Diabrotica virgifera virgifera LeConte, in

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Chiang, H.C. 1973. Bionomics of the northern and western corn rootworms. Annu. Rev. Entomol. 18 :47–72. Chiang H.C. Bionomics of the northern and western corn rootworms

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Barcic, J., Berger, H. K., Festic, H., Kiss, J., Princzinger, G., Schulten, G. and Vonica, I. (1998): Overwiew of the FAO western corn rootworm management program for Central Europe. Pflanzenschutzberichte 57, 3-14. Overwiew of

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Coats, S.A., Tollefson, J. J. and Mutchmor, J.A. (1986): Study of migratory flight in the western corn rootworm (Coleoptera: Chrysomelidae). Environ. Entomol. 15, 620

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.R.. — Hataláné Zsellér I. — Széll E. : 2003. Az amerikai kukoricabogár ( Diabrotica virgifera virgifera LeConte) populációjának jellemzői kukorica monokultúrában [Characteristics of a population of western corn rootworm ( Diabrotica virgifera virgifera

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Barna, Gy., Edwards, C. R., Gerber, C., Bledsoe, L. W. and Kiss, J. (1998): Management of Western corn rootworm ( Diabrotica virgifera virgifera LeConte) in corn based on survey information from previous soybean

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22 Edwards, C. R. (1999): Containment and control of the western corn rootworm in Europe. Food and Agriculture Organization of the United Nations, Plant Production and Protection Division, Plant

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). Most research indicates that NPK fertilizer can be increasing yield and component yield on maize ( Illés et al., 2020; Mousavi et al., 2019 ). With the spread of maize monoculture in modern agricultural practice, the western corn rootworm ( Diabrotica

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Western corn rootworm (WCR) first appeared in Europe near Belgrade airport in 1992. The first adult of this species was found near Mórahalom, in the southern part of Hungary, on 30th June 1995. Small-plot trials were started in Szeged (Cereal Research Non-Profit Co.) and large-scale trials in Mezohegyes (Ménesbirtok Ltd.) in 1996 to elaborate strategies to control this insect pest. To make the work more efficient, eight experts working at different institutions formed a team. At the same time, monitoring was begun on when and where the insect appeared and in what numbers. The experiments were adapted to the life cycle of the species. WCR has one generation per year, laying eggs that overwinter. Larvae begin to hatch in late May to mid-June. Adults emerge by mid-July and survive till early October. They lay eggs in abundance from mid-July to late August.  Trials were conducted to control WCR both with and without chemicals. For adult control pesticides were sprayed from an aircraft or using a field sprayer. Larval control involved seed treatment with insecticide or the use of soil insecticide at planting or at cultivation.

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