Table 6: Palmer amaranth fresh weight reduction by 2,4-D, atrazine, dicamba, glufosinate, glyphosate, imazethapyr, lactofen, and paraquat 4 weeks after the manufacturer’s suggested weed size and 4 and 8 days after this weed size using spray solutions mixed the day of application or 4 or 8 days prior to applicationa.

Timing of application after optimum weed sizeTiming of solution preparation prior to applicationPalmer amaranth fresh weight reduction
2,4-DAtrazineDicambaGlufosinateGlyphosateImazethapyrLactofenParaquat

DaysDays%

0055a72a97a96a85a27a93a62a
4055a72a55a98a79a40a86a73a
4450a63a34a81a85a14a88a82a
8059a60a72a97a74a8a88a56a
8850a47a37a100a81a19a92a78a

Means within a herbicide followed by the same letter are not different at .