SAMOA (Second Active Mode of Action) is a program that was developed b
y American Cyanamid as a way to prevent/delay selection of resistance
to the imidazolinones and to manage resistant weed populations if they
are selected. The program consisted of three major components, all of
which had to be implemented for the program to be successful. These c
omponents comprised educating sales persons, distributors and farmers
on resistance management, developing efficacious and cost-effective ta
nk mixtures or sequential programs and providing incentives for using
this program.