Tl. Grey et al., COMPARISON OF IMAZETHAPYR AND PARAQUAT-BASED WEED-CONTROL SYSTEMS IN PEANUT (ARACHIS-HYPOGAEA), Weed technology, 9(4), 1995, pp. 813-818
Field studies were conducted from 1991 through 1993 to compare weed co
ntrol, peanut tolerance, yield, and net return from imazethapyr applie
d alone or in combination with paraquat. Sicklepod and Florida beggarw
eed were controlled with paraquat early POST followed by a POST applic
ation of either paraquat with 2,4-DB or paraquat with 2,4-DB and benta
zon. Imazethapyr-based early POST treatments offered no improvement. A
n early POST application of paraquat with bentazon or imazethapyr was
required for maximum control of bristly starbur. Imazethapyr applied a
lone early POST, with no further treatment, provided optimum yellow nu
tsedge control. Maximum yield and net return were associated with any
paraquat-containing early POST-applied treatment followed by one of th
e tank mixed POST options.