Pyroxasulfone is a broad-spectrum pyrazole herbicide used primarily for all-season residual weed control in corn and soybeans. Pyroxasulfone is active against a variety of annual grasses and some broad-leaved weeds, and can be absorbed through roots and stems to inhibit early seedling growth of sensitive plants. Pyroxasulfone can be used to study herbicide effects and weed resistance.
References:
[1]. Sikkema P H, et al. Pre-emergence herbicides for potential use in pinto and small red Mexican bean (Phaseolus vulgaris) production[J]. Crop Protection, 2008, 27(1): 124-129.