Plant growth stages in the interspecific oviposition preference of the european corn borer and relations with chemicals present on the leaf surfaces
1989
Derridj, S. | Gregoire, V. | Boutin, J.P. | Fiala, V.
The oviposition preference of the European Corn Borer Ostrinia nubilalis Hbn. Lepidoptera pyralidae was studied in relation to phenological stages of different plant species (Zea mays L., Helianthus annuus L., Phaseolus vulgaris L.). The experiments were done in greenhouses in binary choices. The results show that the plant phenological stages were more important than the plant species in the insect oviposition preference. When the choice was given between two plant species throughout their growth, the preference varied in relation to the development of each species. The relative differences in fructose amounts found on the leaf surfaces (phylloplane) were highly correlated with the insect oviposition preference. Amounts of proline, glucose and sucrose may accentuate this previous effect.
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