2. การจำแนกชนิดวัชพืช Botanical classification : Class, Order, Family, Genus & species or spp. Life cycle : annual, biennial, perennial Habitat : terrestrial,

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2. การจำแนกชนิดวัชพืช Botanical classification : Class, Order, Family, Genus & species or spp. Life cycle : annual, biennial, perennial Habitat : terrestrial, aquatic or niche in relation to crop or land use Physiological characters : C3, C4 plant Level of undesirable : noxious, common Ecological succession : stress tolerator, competitor, ruderal

6. Biology and ecology of some noxious weed species Imperata cylindrica (L.) Beauv. Echinochloa crus-galli (L.) P.Beauv. Echinocloa colona (L.) Link Rottboellia exaltata L.f. Eichhornia crassipes (Mart.) Solms Mimosa pudica Mill Cyperus rotundus L. Chromolaena odorata L.R.M. and Robinson Paspalum conjugatum Berg. Striga lutea Lour. Pistia stratiotes L.

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