Email: C.R.Riches@gre.ac.uk
Weed management and farming systems. 25 years experience in support to smallholder farmers, focusing on weed science and agronomy. Principal areas of expertise are participatory development and promotion of weed control systems, including: low-input weed management; herbicide use and resistance; management of poisonous plants and parasitic weeds; and development and testing of draught-animal implements. Country experience includes: East, Central and Southern Africa; Central America; and South Asia.