Oilseed crops in the Czech Republic and their health state in 2013
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Jana Poslušná and Eva Plachká
Pages: 11-15
Abstract: In the Czech Republic the following crops are grown as oilseeds: winter oilseed rape (Brassica napus), white mustard (Sinapis alba), sunflower (Helianthus annuus), poppy (Papaver somniferum), brown mustard (Brassica juncea), oilseed flax (Linum usitatissimum), and on a small area soybean (Glycine soja) and peanut pumpkins (Cucurbita oleifera). Areas of oilseeds increase every year particularly the proportion of winter oilseed rape. This year’s rapeseed area reached 401.3 thousand hectares. Among the most important fungal diseases of oilseeds are Phoma stem canker (Phoma lingam) and white rot of oilseed rape (Sclerotinia sclerotiorum). Among the important pests of oilseeds are stem and pod weevils (Ceutorhynchus spp.), pollen beetle (Meligethes aeneus) and Brassica pod midge (Dasyneura brassicae). The second most important oil plant in the Czech Republic is sunflower with 24.6 thousand hectares grown in 2013. The most significant diseases and pests of sunflower include gray mold (Botrytis cinerea), sunflower white rot (Sclerotinia sclerotiorum) and aphids (Brachycaudus helichrysi and Aphis fabae). Poppy takes third place of the most commonly grown oilseeds with 18.36 thousand hectares grown in 2013. Downey mildew (Peronospora arborescens), leaf blight (Pleospora papaveracea and Dendryphion penicillatum) and occasionally gray mold (Botrytis cinerea) have been reported as problems. Mustard was cultivated in the Czech Republic at 16.94 thousand ha. Among the major diseases of white mustard include white rot (Sclerotinia sclerotiorum), Alternaria leaf spot of Brassica (Alternaria spp.) and gray mold of crucifers (Botrytis cinerea).