Peer review

Field trials were conducted at two sites in 1996 and 1997 to evaluate weed control and crop response of soil-applied herbicide programs that include flumioxazin or sulfentrazone alone and tankmixed with clomazone, chlorimuron+clomazone, or chlorimuron+pendimethalin. All herbicide treatments caused crop injury ranging from 5 to 27% at 3 weeks after planting (WAP). Flumioxazin alone controlled of giant foxtail (Setaria faberi Herrm.) 18–81%, velvetleaf (Abutilon theophrasti Medik.) 83–88%, common ragweed (Ambrosia artemisiifolia L.) 79–83%, ivyleaf morningglory (Ipomoea hederacea (L.)) 92–93%, and common waterhemp (Amaranthus rudis Sauer) 48–100%. Sulfentrazone alone controlled S. faberi 65–93%, A. theophrasti 88–97%, A. artemisiifolia 58–63%, I. hederacea 96–98%, and A. rudis 78–100%. S. faberi control with both herbicides was improved with the addition of clomazone, clomazone+chlorimuron, or pendimethalin+chlorimuron. A. theophrasti control with flumioxazin was improved with the addition of clomazone+chlorimuron or pendimethalin+chlorimuron. A. artemisiifolia control with sulfentrazone was improved with the addition of clomazone or pendimethalin+chlorimuron. I. hederacea control with flumioxazin was improved with the addition of clomazone+chlorimuron or pendimethalin+chlorimuron. I. hederacea control with sulfentrazone was not improved with any tankmix partner. A. rudis control was not improved with any tankmix partner in two out of three site years.

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