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Since the late 1940s, and perhaps even earlier, pesticidal compositions to treat seeds prior to planting, for the control of certain fungi as well as soil insects, have been developed and manufactured. Until the late 1960s, organo-mercury compounds dominated the seed treatment field, especially in the treatment of cereals (wheat, barley, etc.). With the banning of organo-mercury compounds for seed treatment use by various governments throughout the world, a new breed of fungicidal compounds was developed for treating seed, with many of these having systemic properties. This paper describes briefly a protocol for the development of seed treatment formulations which has been used successfully by the author over the last 15 years. The protocol outlines the desirable physical and chemical properties of these types of pesticide formulations as well as laboratory storage and field tests which it is felt are required.
seed treatments, pesticide, formulations, protocol
Laboratory Manager, Chipman Inc., Stoney Creek, Ont.