US approval for Syngenta's Broadworks
Syngenta has received US approval for its herbicide, Broadworks (mesotrione), for use on tree nuts, stone fruit and citrus fruit. It is the first hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor for use on those crops and is expected to aid resistance management. It is seen as being particularly useful for the control of marestail (Conyza canadensis) and fleabane (C bonariensis) that have developed resistance to glyphosate and other herbicides. Broadworks provides residual control of broadleaf weeds and some grasses. It can be tank-mixed with other herbicides for a full-season weed control programme, Syngenta points out. The company unveiled plans to introduce the herbicide last year. Mesotrione is approved for use in many agricultural and non-agricultural settings but it is predominantly used on maize.