Late-Season Applications of 2,4-DB Peanut Notes No. 165 2019

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The pre-harvest interval for 2,4-DB is 45 days. The major value for 2,4-DB is control of cocklebur and entireleaf/tall morningglory (generally not complete control for big morningglory plants.)  2,4-DB will do very little to most other weeds including pitted morningglory. It does twist and suppress sicklepod and Palmer amaranth but 2,4-DB does not prevent seed production (although it may delay seed development.)