DC X2-5309 ORGANOSILICONE ADJUVANT IMPROVES CONTROL OF KOCHIA (KOCHIA-SCOPARIA) WITH BENTAZON AND BROMOXYNIL

DC X2-5309 organosilicone adjuvant added at 1% (v/v) spray solution in creased the efficacy of bentazon, pyridate, and terbacil on kochia in greenhouse trials. DC X2-5309 decreased the rain-free period needed af ter application of bentazon and bromoxynil to 6 and 1 h, respectively, and increased the uptake of C-14-bentazon and C-14-bromoxynil by koch ia at 1, 3, 6, and 24 h after application compared with crop oil conce ntrate (COC). In field trials, bentazon and bromoxynil rates required to control equal amounts of kochia were reduced by half when adding DC X2-5309 compared with adding crop oil concentrate. DC X2-5309 added a t 0.5% (v/v) spray solution with bentazon did not injure spearmint and controlled kochia equal to or better than bentazon with COC added at 1% (v/v) spray solution.