... at 15-25 . pKa >9 (hydrolysis prevents measurement) F.p. 185 (tech., Pensky-Martens closed cup) COMMERCIALISATION History Insecticide ... and adults, etc., in cereals, hops, ornamentals, potatoes, vegetables, cotton, and other crops. Provides good control of insect-borne plant ... of metabolism of lambda-cyhalothrin in cotton and soya bean leaves, see D. A. French & J. P. Leahey, Proc. Br. Crop Prot ...