Mean (%) mortality (± SE) of R. dominica adults exposed on wheat treated with four dose rates of spinosad at three temperatures and two RH levels (within each row and RH, means among temperatures followed by the same lower case letter are not significantly different, within each row and temperature, means between RH levels followed by the same upper case letter are not significantly different; where no letters exist, no significant differences were noted; HSD test at 0.05)