Plant Health Care announced that Dominik Koechlin has decided, for personal reasons, to retire from his position as Chairman and as a director with immediate effect. The company has started a process to identify a suitable candidate to replace Koechlin. The company's Senior Independent Director Sam Wauchope will take over as Interim Chairman. Wauchope, who joined the company as a non-executive Director in 2004, is a chartered accountant who has been CEO or executive Chairman of a number of UK-listed companies, including Acorn Computer Group plc, Oceonics Group plc and Ultrasis plc.