Pyrethrum (Chrysanthemum cinerariaefolium) was introduced in Kenya in 1928 and grown in highland areas above 1,800m in Rift Valley, Central, Nyanza and Eastern regions in over 24
counties (Table 1) on 100,000ha. Rift Valley is the highest pyrethrum producer in Kenya accounting for 80% of the production. This crop is grown mainly in Nakuru, Nyandarua, Uasin
Gishu, Kericho, Kisii, Kiambu and Narok districts and provides livelihoods to about 8,000 farmers. The crop provides employment directly and indirectly to more than 1million people.