Butralin is a preemergent herbicide used to control suckers on tobacco in the United States,[4][5] Australia,[6] Mozambique and, for food crops also, China.

[7][9] Butralin works by the HRAC mode of action Group D / K1 / 3, (Australian, Global, Numeric respectively), which involves inhibition of microtubule formation, by binding to tubulin, halting growth, and causing depolymerization.

Users are instructed to pour 10 mL on each tobacco plant by hand, and not to unclog nozzles with their mouths.

[11][12] In China, over 100 tons per year are used, as of 2022, on garlic, soybean, tomato, rice, peanut, pepper, cotton, eggplant, and watermelon.

The powder claims to be environmentally friendly, as it lacks the volatile organic molecules such as toluene and xylene used as solvent in EC formulations.