Benzobicyclon is a 4-HPPD inhibitor and herbicide that reacts with water to form a hydrolysate of the active herbicide benzobicycline, causing bleaching and death of weeds. Benzobicyclon is effective against grass, sedge and broadleaf weeds. Benzobicyclon effectively targets sulfonylurea herbicide-resistant biotypes as well as wild-type weeds
In Vitro
Benzobicyclon (100-300 g a.i./ha; 1 L or 2 L) exhibits excellent herbicidal activity against S. juncoides regardless of the emergence depth between 0 and 3 cm and (200-300 g a.i./ha; pre-emergence; 1 L) hardly affected by the soil types. Benzobicyclon (300 g a.i./ha; 1-leaf and 1 L stages) completely controls S. juncoides at 25°C, 20°C, and 15°C, and takes longer to reach 90% control at low temperatures. Benzobicyclon (200, 300 g a.i./ha; pre-emergence and 1 L stages) exhibits excellent herbicidal activity against all SU-R biotypes S. juncoides , M. vaginalis and L. dubia as well as SU-S biotypes. (SU-S: sulfonylurea herbicide-susceptible, SU-R: sulfonylurea herbicide-resistant). Benzobicyclon (200-600 g a.i./ha; pre-emergence and 1 L stages) exhibits excellent herbicidal activity against E. crus-galli , S. juncoides , M. vaginalis , L. var. dubia and C. serotinus and shows good rice crop safety. MCE has not independently confirmed the accuracy of these methods. They are for reference only. Cell Viability AssayCell Line: S. juncoides Concentration: 200, 300 g a.i./ha Incubation Time: pre-emergence and 1 L stages Result: Completely controlled S. juncoides in 5 types of paddy soils, namely, clay loam, loam, light clay, sandy loam, and heavy clay. Cell Viability AssayCell Line: S. juncoides Concentration: 300 g a.i./ha Incubation Time: 1-leaf and 1 L stages Result: Showed 90% control at 25°C, 20°C, and 15°C at 14, 22, and 32 days after application, respectively. Cell Viability AssayCell Line: S. juncoides , M. vaginalis , L. dubia Concentration: 200, 300 g a.i./ha Incubation Time: Pre-emergence and 1 L stages Result: Showed good herbicidal activity against all SU-R biotypes tested as well as SU-susceptible biotypes. Cell Viability AssayCell Line: Transplanted rice (3 cm) Concentration: 200-600 g a.i./ha Incubation Time: Pre-emergence and 1 L stages Result: Exhibited excellent herbicidal activity and broad-herbicidal spectrum without causing injury to transplanted rice.
