Abstract: In order to test the control effect of 48% butralin-octanol, the field experiment on suckercides was conducted.The results showed that tobacco suckers could be inhibited effectively by applying 48% butralin-octanol EC at a dilution of 100 only once, the inhibition rate was up to 95.23%.48% Butralin-octanol was a cheap and high effective tobacco suckercide, its control effect was comparable with the control chemical butralin.