The herbicide from Bayer CropScience, Research Triangle Park, N.C., contains the active ingredient, indaziflam, according to the product label.
Indaziflam is a cellulose-biosynthesis inhibitor and belongs to the Herbicide Resistance Action Committee's Group 29.
It is effective against a wide array of broadleaf and grassy weeds and provides up to six months of pre-emergence residual weed control, according to a press release.
Alion is not a contact herbicide and is not effective on weeds that have already emerged.
California already had registered the herbicide on several other crops, including tree nuts, citrus, stone and pome fruit.