Invasive Species Compendium

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Investigation and research of weeds problems in Lujiangba cassava fields in Yunnan dry-hot area valley.

Abstract

Investigation was conducted in Lujiangba Cassava Fields in Yunnan Dry-Hot Area Valley. The results showed that 19 families and 48 species of weeds remarked in cassava field. Among them, alien invasive weed had 9 families and 17 species, among which the dominant weeds were Portulaca oleracea L., Solanum nigrum L., Malvastrum coromandelianum (L.) Gurcke, Ageratum conyzoides L. and Cyperus rotundus with 30.84%, 25.22%, 22.41%, 19.25% and 18.19% relative abundance, respectively by field all degrees, field density, field frequency and relatively abundance in cassava field. The study could provide scientific basis for weeds control in cassava fields.