King & H. Rob. Chromolaena odorata is a weed native to tropical America and has become one of the world's worst alien invasive species in the Old World of tropical and subtropical countries. WRA Specialist. NA 103 2011. Homemade botanical insecticides are often recommended by agricultural extension services and some development organizations. It was transferred to the genus Chromolaena by King and Robinson (1970), and although this conception of the tribe Eupatorieae has met some disagreement among botanists, the new binomial of Chromolaena odorata (L.) R.M. Regrowth from stump (below). Weeds.. CABI Publishing, Wallingford, UK No evidence that Chromolaena odorata is highly domesticated 102 2011. Scientific name Chromolaena odorata (L.) R. M. King & H. Robinson Common name Siam weed Khmer/Indigenous name kântrèang'khaêt; tönöör Family Asteraceae Plant type Dicot Description/ Characteristics An upright (erect) or sprawling shrub forming thickets and usually growing 1.5 to 3 m tall in the open. Chromolaena odorata (L.) R.M. NA 201 2001. However it may reach greater heights (6-20 m) when climbing… Their use is often driven by the limited availability or cost of commercial pesticides. However, this could be questioned because scientific … Chromolaena odorata.

Some of these properties may, however, become a serious disadvantage when farmers gradually change to land use systems that integrate grazed fallow, crop rotation, and/or fruit and timber plantations. Chromolaena (Siam) Weed 1 International Chromolaena Working Group of the International Organisation of Biological Control Figure 1: Mature chromolaena can grow up to 3 m in open space (above). Noxious Weeds of Australia. latest.

Parsons, W. T./Cuthbertson, E. G.. Chromolaena odorata is an excellent fallow species considering its fast expansion after crop harvest, high biomass production, weed suppression, and fast decomposition rate. SOIL FERTILITY CHANGES? We would like to compile a list of all protected areas around the world that have been invaded by these noxious weeds. 2 Chromolaena odorata Newsletter 17, December 2008 increased litter N and K inputs. C. odorata leaves contained 40mg g-1 of N and 23mg g-1 of K, compared with 6-10mg g-1 N and 11-17mg g-1 K for grasses (Yonghachea, 2005). Personal Communication.

is now widely accepted. Microscopic Leaf Constant Numbers of Chromolaena odorata in Thailand. How Chromolaena, an invasive weed, if affecting livelihoods in Africa. Personal Communication. Chromolaena odorata continues to spread through the subtropical regions of southern Africa and to become denser where it is already present, leading to major vegetation changes. Chromolaena odorata L. (Asteraceae) is one of the tropical plants which is widely used as traditional medicines for diabetes and soft tissue wounds treatment in some regions in East Indonesia.