Sulfentrazone for Weed Control in Soybean (Glycine max)

Abstract

Field studies were conducted over 4 yr to evaluate weed control and soybean injury with sulfentrazone applied preplant incorporated or preemergence alone and in combination with imazaquin, metribuzin, or cloransulam. Sulfentrazone at 280 g ai/ha controlled yellow nutsedge, common waterhemp, ivyleaf morningglory, and velvetleaf 92 to 100% 56 days after planting (DAP). At 420 g/ha, sulfentrazone controlled giant foxtail 80 to 94% 21 DAP. Sulfentrazone controlled common ragweed 17 to 93% and common cocklebur 57 to 91%. Giant foxtail, common cocklebur, and common ragweed control with sulfentrazone at lower rates was improved with the addition of metribuzin or cloransulam. Sulfentrazone caused no visual soybean injury and did not reduce yield compared with standard herbicides.

The Biology of Invasive Alien Plants in Canada. 3. Amaranthus tuberculatus (Moq.) Sauer var. rudis (Sauer) Costea & Tardif

“…rudis in soybeans was sulfentrazone (Krausz et al 1998;Dirks et al 2000b;Hager et al 2002a;Nolte and Young 2002b;Krausz and Young 2003). Other preemergence herbicides reported to control A. tuberculatus var.…”

Transplanted Pepper (Capsicum annuum) Tolerance to Selected Herbicides and Method of Application

“…It has residual soil activity (Cobucci et al, 1998;Weber, 1993) with a half-life ranging from 6 to 12 months (Johnson and Talbert, 1993). Sulfentrazone provides effective weed control of many dicot and grass weeds in soybean (Krausz et al, 1998) and tobacco (Hancock, 1998;Walker et al, 1998). Differential cultivar response to sulfentrazone has been observed in soybean (Zhaohu et al, 1999) and southern pea [Vigna unguiculata (L.) Walp.]…”

Weed Control with Sulfentrazone plus a Low Rate of Imazethapyr in White Bean

“…This is consistent with other studies, which found that sulfentrazone (260 g•ai•ha −1 ) provided 87% control of giant foxtail (Setaria faberi Herrm.) [18] and imazethapyr (30 g•ai•ha ) decreased to 62% and 79%, respectively, control with s-metolachlor was ). Sulfentrazone + imazethapyr reduced foxtail biomass by 95%, but did not reduce foxtail density relative to the weedy control.…”