McDougall and Yalding
of Yalding, Kent, maker of herbicides for hops, apples, and other crops
1921 McDougall & Yalding, Ltd., Yalding, Kent.[1]
1925 William Cooper and Nephews acquired McDougall and Robertson and McDougall and Yalding to form Cooper, McDougall and Robertson.[2]
1937 "ICI's growing interests in the field of crop protection now began to conflict with those of Cooper, McDougall and Robertson and in June 1937 a joint company, Plant Protection Ltd, was formed; curiously, the share capital was £1900 divided into 1900 shares of £1 each'. The new company had offices in London, but the technical staff were based at Yalding in Kent. ICI contributed the research facilities at Jealott's Hill and took over the manufacturing side, including the factory at Yalding; Coopers provided the commercial and distributive expertise. (For a variety of reasons this proved to be a somewhat inharmonious alliance, particularly in research liaison; Plant Protection, after all, had its own technical staff, with a better knowledge of the market than ICI. But it worked tolerably well in practice and lasted until 1958, when ICI bought out the crop protection interests of Cooper, McDougall & Robertson, and Plant Protection Ltd became a wholly-owned ICI subsidiary)".[3]