Scientists have made genetic modifications to cotton to increase its resistance to insect pests  According to farmers' report, the amount of insecticide needed per acre to control insect pests was only slightly lower for those who tried the modified seed than for those who did not
Ttherefore, since the modified seed costs more than ordinary seed without producing yields of higher market value, switching to the modified seed would be unlikely to benefit most cotton farmers economically
Whether the farmers who have tried the modified seed planted as many acres of cotton, on average, as farmers using the ordinary seed did