Folia Horticulturae

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The effect of growing methods and onion (Allium cepa L.) cultivars on the occurrence of the onion beetle (Lilioceris merdigera L.)

Irena Łuczak

Department of Plant Protection
Faculty of Horticulture, Agricultural University
29 Listopada 54, 31-425 Kraków, Poland

In 1987-1988 the effectiveness of onion seedling protection against Lilioceris merdigera L., by the use of trap plots was studied. Three cultivars of onion sets were tested as "trap plants". The protective zone of onion sets applied around onions grown from seed was found to diminish the number of laid eggs as well as feeding individuals of onion beetle by 50%. No significant differences in the attractiveness (to Lilioceris) of three local cultivars of onion sets (Wolska, Rawska, Czerniakowska) cultivated to protect onion grown from seed were observed.

Łuczak I., 1993. The effect of growing methods and onion (Allium cepa L.) cultivars on the occurrence of the onion beetle (Lilioceris merdigera L.). Folia Horticulturae V/2: 33-41.