Systemic insecticides and the mealybug vectors of swollen-shoot virus of cacao

Abstract

DURING the summer of 1949, samples of bis (bis-dimethylamino) phosphonous anhydride and bis (dimethylamino) fluorophosphine oxide prepared by Dr. B. A. Kilby, of the School of Medicine, Leeds, were received through Dr. R. A. E. Galley, of the Agricultural Research Council. © 1952 Nature Publishing Group.