Abstract
The European corn borer (ECB), Ostrinia nubilalis Hbn. (Lepidoptera: Crambidae) has recently become very harmful to maize in the North of its range in Europe, primarily in Belarus. Conventional pheromone-trapping methods however show very low effectiveness. Our electrophysiological study did not reveal any impairment in peripheral sensitivity, but flight-tunnel responses were low. The reason for such discrepancy could lie in breeding of the Z race of moth coming with maize from south with local populations of the pest.
Highlights
European corn borer (ECB), Ostrinia nubilalis Hbn. (Lepidoptera: Crambidae), is a major pest of maize, Zea mays worldwide
The species is divided into two pheromone races defined by their major sex pheromone stereoisomer component, Z or E 11-tetradecenyl acetate that they use for mate finding [3]
One-way ANOVA applied to the 3 dose of Z blend revealed significant difference (p
Summary
European corn borer (ECB), Ostrinia nubilalis Hbn. (Lepidoptera: Crambidae), is a major pest of maize, Zea mays worldwide. The species is divided into two pheromone races defined by their major sex pheromone stereoisomer component, Z (cis) or E (trans) 11-tetradecenyl acetate that they use for mate finding [3]. Both races are known to be generalist feeders, though in Europe the E-pheromone race tends to have a stronger association with nonmaize hosts whereas Z-pheromone race feeds mostly on maize. Situation in Europe appears more complex, since together with two pheromone strains of ECB the parent species, Ostrinia scapulalis, which employs the same pheromone system, is present [6, 7].
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