Ostrinia nubilalis (Hübner) (European corn borer) is the main maize pest in Central and South Europe and it promotes Fusarium verticillioides infection on maize grains, which is able to produce fumonisins. The objective of this study was to determine the effect of the timing of pyrethroid treatments on European corn borer damage, fungal ear rot and fumonisin contamination. The field experiments were performed from 2005 to 2007 in NW Italy. Four application timings were compared to an untreated control. The insecticide treatments were applied at approximately 10 days intervals, starting from the end of flowering. The last treatment was performed approximately 15 days after the ECB flight peak. At harvest, the ears were rated for the incidence and severity of European corn borer damage and fungal ear rot symptoms, and the harvested kernels were analyzed for fumonisins B1 + B2. In all the years, the treatments applied 7–10 days before the European corn borer adult flight peak showed the best efficacy to control insect damage on ears. Fungal ear rot and fumonisin contamination were clearly affected by European corn borer control. The occurrence of this mycotoxin in plots treated at the best pyrethroid application timing was significantly reduced, on average by 76%, compared to the untreated control. Furthermore, early insecticide applications, at the end of maize flowering, showed significantly lower fumonisin contamination than treatments applied at approximately 15 days after the adult flight peak. This research indicates that the production of maize kernels with low fumonisin content may be enhanced by a correct timing of the insecticide application against second generation European corn borer.
Alma, A., Lessio, F., Reyneri, A., Blandino, M. 2005. Relationships between Ostrinia nubilalis Hübner (Lepidoptera Crambidae), crop technique and mycotoxin contamination of corn kernel in Northwestern Italy. Int. J. Pest Manag. 51: 165–173.
Ayyappath, R., Witkowski, J.F., Higley, L.G. 1996. Population changes of spider mites (Acari: Tetranychidae) following insecticide applications in corn. Environ. Entomol. 25: 933–937.
Blandino, M., Reyneri, A., Vasara, F., Pascale, M., Haidukowski, M., Saporiti, M. 2008. Effect of sowing date and insecticide application against European corn borer (Lepidoptera: Crambidae) on fumonisin contamination in maize kernels. Crop Prot. 27: 1432–1436.
Bottalico, A., 1998. Fusarium diseases of cereals: species complex and related mycotoxin profiles in Europe. J. Plant Pathol. 80: 85–103.
Chauzat, M.P., Faucon, J.P. 2007. Pesticide residues in beeswax samples collected from honey bee colonies (Apis mellifera L.) in France. Pest Manag. Sci. 63: 1100–1106.
Dowd, P.F. 2003. Insect management to facilitate preharvest mycotoxin management. J. Toxicol. Toxin Rev. 22: 327–350.
Karise, R., Viik, E., Mand, M. 2007. Impact of alpha-cypermethrin on honey bees foraging on spring oilseed rape (Brassica napus) flowers in field conditions. Pest Manag. Sci. 63: 1085–1089.
Lancashire, P.D., Bleiholder, H., Longelüddcke, P., Stauss, R., Van Den Boom, T., Weber, E., Witzenberger, A. 1991. An uniform decimal code for growth stages of crops and weeds. Ann. Appl. Biol. 119: 561–601.
Lozzia, G., Manachini, B. 2003. Susceptibility of Ostrinia nubilalis to Bacillus thuringiensis var kurstaki. Bulletin of Insectol. 56: 215–219.
Mason, C.E., Rice, M.E., Calvin, D.D., Van Duyn, J.W., Showers, W.B., Hutchison, W.D., Witkowski, J.F., Higgins, R.A., Onstad, D.W. 1996. European corn borer ecology and management. North Central Regional Extension Publication No. 327. Iowa State University, Ames, USA.
Munkvold, G.P. 2003. Cultural and genetic approaches to managing mycotoxins in maize. Annu. Rev. Phytopathol. 41: 99–116.
Munkvold, G.P., Hellmich, R.L., Rice, L.G. 1999. Comparison of fumonisin concentrations in kernels of transgenic Bt maize hybrids and nontransgenic hybrids. Plant Dis. 83: 130–138.
Placinta, C.M., D’Mello, J.P.F., Macdonald, A.M.C. 1999. A review of worldwide contamination of cereal grains and animal feed with Fusarium mycotoxins. Animal Feed Sci. and Technology 78: 21–37.
Rinkleff, J.H., Hutchison, W.D., Campbell, C.D., Bolin, P.C., Bartels, D.W. 1995. Insecticide toxicity in European Corn Borer (Lepidoptera: Pyralidae): ovicidal activity and residual mortality to neonates. J. Econ. Entomol. 88: 246–253.
Saladini, M., Blandino, M., Reyneri, A., Alma, A. 2008. The impact of insecticide treatments on Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae) and their influence on the mycotoxin contamination of maize kernels. Pest Manag. Sci. 64: 1170–1178.
Sobek, E.A., Munkvold, G.P. 1999. European Corn Borer (Lepidoptera: Pyralidae) larvae as vectors of Fusarium moniliforme, causing kernel rot and symptomless infection of maize kernels. J. Econ. Entomol. 92: 503–509.
Communicated by Á. Mesterházy
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Blandino, M., Saladini, M.A., Alma, A. et al. Pyrethroid application timing to control European corn borer (Lepidoptera: Crambidae) and minimize fumonisin contamination in maize kernels. CEREAL RESEARCH COMMUNICATIONS 38, 75–82 (2010). https://doi.org/10.1556/CRC.38.2010.1.8
- European corn borer