Table 4: Visual response, height reduction, and fresh-weight reduction of common waterhemp 21 d after applicationin the greenhouse.

Treatment a RateResistant or nonresistant biotypeControlHeight reductionFresh-weight reduction
g ai/ha%

Nontreated Protox-resistant000
Glyphosate + DAS840Protox-resistant100100100
Lactofen + COC + DAS220Protox-resistant61924
Lactofen + COC + DAS880Protox-resistant303937
Sulfentrazone + DAS + COC240Protox-resistant83028
Acifluorfen + COC + DAS420Protox-resistant102529
Flumioxazin + COC + DAS72Protox-resistant192936
Fomesafen + COC + DAS330Protox-resistant202823
Imazethapyr + NIS70Protox-resistant0−17−30
Mesotrione + COC + DAS105Protox-resistant302422
Atrazine + COC1680Protox-resistant273236
Nontreated Nonresistant000
Lactofen + COC + DAS220Nonresistant100100100
LSD ( 𝑃 = 0 . 0 5 )192122

a Additives included crop-oil concentrate (COC) at 1.2 l/ha, diammonium sulfate (DAS) at 2.8 kg/ha, and nonionic surfactant (NIS) at 0.25% v/v.