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Sweet corn zea mays var rugosa and weed response to differently timed post emergence applications of atrazine 2 4 d dicamba alachlor and metolachlor



Sweet corn zea mays var rugosa and weed response to differently timed post emergence applications of atrazine 2 4 d dicamba alachlor and metolachlor



Proceedings of the Northeastern Weed Science Society 34: 288-292



Applications of dicamba to sweet corn ['Gold Cup' and 'Silver Queen'] beyond the spike stage caused severe injury and yield reductions regardless of rate, although weed control was excellent. The addition of 2,4-D to atrazine oil mixtures or mixtures of atrazine, oil and alachlor injured corn 40 cm tall and reduced yields. Spike stage applications were safe. Excellent weed control was obtained with mixtures of low rates of atrazine, oil and acetanilides at low or higher rates. Differences in corn tolerance to these post-emergence mixtures comparing alachlor and metolachlor at different rates and timings were subtle, not entirely consistent and somewhat dependent on variety.

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Accession: 006554972

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