EFFECT OF ADJUVANTS ON BENTAZON EFFICACY IN GREEN PEA (PISUM-SATIVUM)

Bentazon efficacy was evaluated in early, normal, and late plantings o f green pea with the addition of four adjuvants: crop oil concentrate (COG), LI-700, Sylgard 309, and X-77. Weed control was improved by all adjuvants in normal and late plantings of green pea, but only by Sylg ard 309, X-77, and LI-700 in the early planting. In normal and late pl antings, weed control with bentazon applied at 0.56 kg/ha with any adj uvant was equal to weed control with bentazon applied alone at 1.12 kg /ha. Bentazon injury on green pea plants varied from slight to severe, with the lowest injury resulting from bentazon applied with COC and L I-700 and highest injury from bentazon applied with Sylgard 309. Benta zon injury was greater in normal and late plantings than in the early planting.