The world s worst weeds
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CTA. 2002. The world?s worst weeds. Spore 98. CTA, Wageningen, The Netherlands.
Permanent link to this item: http://hdl.handle.net/10568/46484
Internet URL: http://spore.cta.int/images/stories/pdf/old/spore98.pdf
Of terrestrial weeds, 69% are broad-leaved weeds, 23% are grasses, 6% are sedges (leaved grasslike stems with small flowers), and 2% are ferns. The weeds below occur without exception in the subtropics and the tropics and are all found in upland...
Of terrestrial weeds, 69% are broad-leaved weeds, 23% are grasses, 6% are sedges (leaved grasslike stems with small flowers), and 2% are ferns. The weeds below occur without exception in the subtropics and the tropics and are all found in upland crops. The most notorious aquatic weed is the water hyacinth (Eichhornia crassipes). botanical name TAAABcommon name Cyperus rotundus TAAAB TAAABnut grass, purple nutsedge Cynodon dactylon TAAABstar grass, Bermuda grass Echinochloa crus-galli TAAABbarnyard grass Echinochloa colonum TAAABjungle rice (also in lowland & flooded rice) Eleusine indica TAAABgoose grass, wild finger millet Sorghum halepense TAAABJohnson grass, Aleppo grass Imperata cylindrica TAAABalang-alang, spear- or sword grass (especially in tree crops) Portulaca oleracea TAAABpigweed, purslane Chenopodium album TAAABgoose feet, fat hen Digitaria sanguinalis TAAABhairy or large crab grass Convolvulus arvensis TAAABbindweed Amaranthus hybridus TAAABsmooth amaranthus, pigweed Amaranthus spinosus TAAABspiny or prickly pigweed Cyperus esculentus TAAAByellow nutsedge Paspalum conjugatum TAAABsour paspalum, sour grass (especially in tree crops) Rottboelia cochinchinensis TAAABguinea-fowl grass, itch grass Derived from: Weed management in the humid and sub-humid tropics. By P J Van Rijn, Royal Tropical Institute, Netherlands, 2001. 245 pp. ISBN 90 6832 123 4. t 31.31 KIT Press, PO Box 95001, 1090 HA Amsterdam, Netherlands Fax: +31 20 568 82 86. Email: firstname.lastname@example.org