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In comparison with other cruciferous vegetables, horseradish has rarely been the object of scientific research, and the knowledge about the composition, content and distribution of glucosinolates (GLS) in different organs of horseradish plants is limited. Therefore, the aim of this study was to evaluate changes in the GLS content in leaves and roots of four horseradish landraces during the growing season.

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Copyright of Progress in Plant Protection is the property of Institute of Plant Protection and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In Poland, in the years 1919-2010, in field crops of tomato (Lycopersicon esculentum Mill.), paprika (Capsicum annuum L.) and eggplant (Solanum melongena L.) there were found 52 phytophagous species belonging to 6 orders of insects: Orthoptera, Thysanoptera, Hemiptera, Coleoptera, Lepidoptera and Diptera. The number of pest species occurring on the different crops was: tomato - 39, paprika - 41, eggplant - 27. The presented phytophagous entomofauna proved to be stable in terms of species composition over the years of observations. However, there was a significant variation in population size, which was subject to considerable fluctuations in successive growing seasons. The dominant species posing a threat to plantations every year included: for tomato: Colorado potato beetle (Leptinotarsa decemlineata), green peach aphid (Myzus persicae), soil pests: cutworm (Agrotis sp), wireworms (Agriotes sp) and white grubs (Melolontha sp); for paprika: onion thrips (Thrips tabaci), green peach aphid (Myzus persicae), bugs (Lygus sp.); for eggplant: green peach aphid (Myzus persicae), Colorado beetle (Leptinotarsa decemlineata), onion thrips (Thrips tabaci). [ABSTRACT FROM AUTHOR]