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Genetically modified plants of linseed (Linum usitatissimum L.) with increased contents of secondary metabolites may affect the relationship between a plant and a pest. The aim of this study was to evaluate the effect of two types of genetically modified plants of linseed, variety Linola, on the species composition, abundance, seasonal dynamics and number of damages caused by flea beetles (Coleoptera, Chrysomelidae, Alticinae). The study was conducted in 2011–2013, at the experimental station in Pawłowice. The experiments were carried out on the genetically modified type of linseed overproducing flavonoids, the type overproducing glucose derivatives of phenylpropanoid and the control plants. The number of damages caused by these beetles on whole plants was determined. Within three years of research 11 species of flea beetles were identified. Aphthona euphorbiae (Schrank, 1781) was the most abundant species, regardless of the every treatment in each experimental year. Longitarsus parvulus (Paykull, 1799) occurred less frequently. There was no clear effect of the genetic modification of linseed on the species composition, abundance and population dynamics of flea beetles and number of damages caused by these beetles.

Flea beetles (Coleoptera, Chrysomelidae, Alticinae) on genetically modified linseed (Linum usitatissimum L.)