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Control of wild buckwheat in Oklahoma winter wheat with Tordon 22K herbicide

Down to Earth 43(1): 19-23

Control of wild buckwheat in Oklahoma winter wheat with Tordon 22K herbicide

In trials in winter wheat at Stillwater, Oklahoma, 0.24 lb picloram/acre + 0.38 lb 2,4-D or MCPA gave excellent post-em. control of Polygonum convolvulus and other problem weeds, except Lamium amplexicaule, without injury to the crop or adverse effects on yields, though some shortening of the stems occurred. Other treatments effective against B. convolvulus post-em. included clopyralid + 2,4-D at 0.062 lb + 0.25 lb and 0.094 lb + 0.375 lb/acre and fluroxypur at 0.062 and 0.125 lb/acre.

Accession: 001554889

Related references

Gantz, R.L.; Warren, L.F., 1966: Wild buckwheat control in small grain crops with tordon herbicide. Tordon is 4-ammo-3,5,6-trichloropicolinic acid. Tests in several north central states, using 1/4 oz. of tordon plus 4 oz. of 2,4-D per acre, gave satisfactory control of wild buckwheat (Polygonum convolvulus) and knotweed (P. aviculare) without an...

Fain, D.M.; Peeper, T.F.; Greer, H.A., 1980: Wild buckwheat in Oklahoma wheat: problems and control. Wild buckwheat (Polygonum convolvulus) is found in several counties in Oklahoma. It starts germinating in late Feb. or early March and produces an estimated 10 million seeds/acre. Trials indicate that 10 P. convolvulus plants/ft2 reduce wheat yiel...

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