Abstract: About 40.7% pesticides used to control the pests on crops worldwide are toxic. Over 60% workers in Kenya are exposed to pesticides due to lack of knowledge, negative attitude and poor practice. Ministry of Agriculture reported over 70% unspecified pesticides used on farms in Mavoko Division were toxic and farm workers who applied them complained of unspecified health complications of which 60% were pesticide related. These allegations were investigated on 160 workers who had been employed for over two years on farms in Kinanie sub-location. Data was collected through interviews and observations.