Maximizing Herbicide Efficiency with Mixtures and Expert Systems

Green, Jerry M.

doi:10.1017/s0890037x00034059

Cited by 37 publications

(36 citation statements)

References 8 publications

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“…Soybean yield was similar to that of the weed-free check, but was 79% greater than the weedy check. These results are consistent with other studies that have shown greater than 90% control of cocklebur with clorransulam (Green 1991).…”

Section: Post Herbicide Treatmentssupporting

confidence: 93%

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Control of common cocklebur (Xanthium strumarium L.) with pre- and postemergence herbicides in soybean

Sikkema¹,

Kramer²,

Vyn³

et al. 2008

Can. J. Plant Sci.

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]. There was minimal injury (2% or less) to soybean from the PRE and POST herbicides evaluated. Cloransulam applied PRE provided up to 98% visual control, reduced density 93%, and reduced dry weight of cocklebur 96%. Linuron, metribuzin, imazethapyr, and clomazone applied PRE provided 0 to 77% control and reduced density and dry weight of cocklebur minimally (54% or less) compared with the weedy check. Cloransulam applied POST provided as much as 98% control, reduced density up to 96%, and reduced dry weight of cocklebur as much as 98%. Chlorimuron, imazethapyr, imazethapyr plus bentazon, and glyphosate applied POST provided 49 to 90% control, reduced density 62 to 89%, and reduced dry weight of cocklebur 69 to 92%. Acifluorfen, fomesafen, bentazon, and thifensulfuron applied POST provided 1 to 51% control, reduced density 0 to 80%, and reduced dry weight 0 to 74% compared with the weedy check. Soybean yield increased as much as 79% compared with the weedy check as a result of cloransulam applied PRE or POST. Based on these results, cloransulam applied PRE or POST provides excellent control of cocklebur in soybean. . Les herbicides e´value´s ont cause´peu de dommages (2 % ou moins) a`la culture. Le cloransulam applique´avant la leve´e de´truit jusqu'a`98 % de l'adventice (examen visuel) dont il diminue la densite´de peuplement de 93 % et le poids sec de 96 %. L'application de linuron, de me´tribuzine, d'imaze´thapyr et de clomazone avant la leve´e de´truit 0 a`77 % de la lambourde avec une re´duction minimale de la densite´de peuplement et du poids sec (54 % ou moins), comparativement aux parcelles te´moins infeste´es. L'application de cloransulam apre`s la leve´e de´truit jusqu'a`98 % de la lambourde et en diminue le poids sec de jusqu'a`98 %. L'application de chlorimuron, d'imaze´thapyr, d'imaze´thapyr additionne´de bentazon, et de glyphosate apre`s la leve´e de´truit de 49 a`90 % de la lambourde, en re´duit la densite´de peuplement de 62 a`89 % et le poids sec de 69 a9 2 %. L'application d'acifluorfen, de fomesafen, de bentazon et de thifensulfuron apre`s la leve´e de´truit de 1 a`51 % des adventices, en diminue la densite´de peuplement de 0 a`80 %, et le poids sec de 0 a`74 %, comparativement aux parcelles te´moin infeste´es. L'application de cloransulam avant ou apre`s la leve´e accroıˆt le rendement du soja de jusqu'a`79 %, comparativement a`celui des parcelles te´moin infeste´es. Compte tenu de ces re´sultats, les auteurs concluent que l'application de cloransulam avant ou apre`s la leve´e est un excellent moyen de lutte contre la lambourde dans les cultures de soja.

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Section: Post Herbicide Treatmentssupporting

confidence: 93%

“…This result is consistent with previous research in the United States that showed that cocklebur was controlled 90% with cloransulam applied PRE (Green 1991). Linuron, metribuzin, and imazethapyr provided little control of cocklebur, while clomazone demonstrated poor or no control of cocklebur in soybean.…”

Section: Pre Herbicide Treatmentssupporting

confidence: 91%

Control of common cocklebur (Xanthium strumarium L.) with pre- and postemergence herbicides in soybean

Sikkema¹,

Kramer²,

Vyn³

et al. 2008

Can. J. Plant Sci.

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“…Soybean (Glycine max L.) is an increasingly important crop for growers in south-western Ontario, Canada. Effective weed control is an essential component of profitable soybean production (Miller 1974;Green 1991;Dieleman et al 1996). Soybean germinates and grows slowly under cooler soil temperatures and, thus, is not a good competitor with weeds in such environments (Owen 1998).…”

Section: Introductionmentioning

confidence: 99%

Effect of amitrole and 2,4‐D applied preplant and pre‐emergence in soybean (Glycine max)

Soltani

Swanton

Hamill

et al. 2008

Weed Biology and Management

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There is limited information on the effect of amitrole and 2,4-D ester applied preplant and pre-emergence in soybean (Glycine max L.) in Ontario, Canada. Six field trials were conducted over a 2 year period (2004 to 2005) at three Ontario locations to evaluate the response of soybean to amitrole or 2,4-D ester applied at 14 days preplant (DPP), 7 DPP, 1 day after planting (DAP), and 7 DAP.The application of amitrole resulted in as much as 5.8, 3.9, 1.7, and 1% visible crop injury in soybean at 7, 14, 28, and 56 days after emergence (DAE), respectively. There was no visible injury in soybean with any amitrole treatment at 56 DAE, except for amitrole applied at 7 DAP, which caused 1% visible injury in soybean at 2310 g ha -1 . The application of the 2,4-D ester caused Յ8.3, 9.7, 4.6, and 1.3% visible injury in soybean at 7, 14, 28, and 56 DAE, respectively.The visible injury decreased over time.There was no visible injury in soybean with any of the 2,4-D ester treatments at 56 DAE, except for the 2,4-D ester treatment applied at 7 DAP, which caused 1% visible injury at 1155 g ha -1 and 1.3% visible injury at 2310 g ha -1 . Soybean generally responded similarly to amitrole and 2,4-D ester when applied at 14 and 7 DPP; however, soybean was more tolerant to amitrole compared to 2,4-D ester when applied at 1 or 7 DAP.The application of amitrole and 2,4-D ester resulted in no biomass or yield reduction in soybean compared to the weed-free, untreated control at all doses and application timings evaluated. Soybean is tolerant to the preplant and pre-emergence application of amitrole or 2,4-D ester at the doses evaluated.

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“…Acceptable weed control has been reported when herbicides were applied at below the manufacturers' suggested rates to row crops grown in conventional and no-till systems (Buhler et al 1993;DeFelice et al 1989;Devlin et al 1991;Green 1991;Muyonga et al 1996;Prostko and Meade 1993;Steckel et al 1990). Weed growth stage, as well as temperature, relative humidity, and soil water content, affect the weed's susceptibility to herbicides and should be considered when implementing reduced-rate herbicide programs (Jensen and Kudsk 1988;Klingman et al 1992;Rosales-Robles et al 1999).…”

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confidence: 99%

Weed Management Using Reduced Rate Combinations of Diclosulam, Flumioxazin, and Imazapic in Peanut

et al. 2009

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Experiments were conducted during 2000 and 2001 at a total of 13 locations throughout Alabama, Georgia, Florida, North Carolina, and Texas to evaluate efficacy of herbicides at or below the manufacturer's suggested use rate. Herbicide applications included diclosulam and flumioxazin applied PRE alone or followed by imazapic applied early postemergence (EPOST). All possible combinations of diclosulam at 0, 13.5, or 27 g ai/ha and flumioxazin at 0, 53, or 105 g ai/ha applied PRE were included. Imazapic was applied at 35 g ai/ha. Ivyleaf morningglory was controlled more than 87% when imazapic was applied EPOST regardless of PRE herbicide. Pitted morningglory control > 67% was observed with applications of diclosulam (27 g/ha) followed by imazapic, diclosulam (13.5 g/ha) plus flumioxazin (53 g/ha), diclosulam (13.5 g/ha) plus flumioxazin (105 g/ha), and diclosulam (27 g/ha) plus flumioxazin (105 g/ha). Sicklepod was controlled more than 74% with flumioxazin (53 g/ha) followed by imazapic and diclosulam (27 g/ha) plus flumioxazin (105 g/ha) followed by imazapic. Florida beggarweed was controlled more than 84% by all PRE herbicide combinations except flumioxazin (53 g/ha) alone or diclosulam (27 g/ha) alone or with imazapic. Yellow nutsedge was controlled at least 90% with diclosulam at either rate followed by imazapic and by diclosulam plus flumioxazin followed by imazapic regardless of rate. Pod yield was generally higher when herbicides were applied regardless of herbicide combination or rate. Peanut yield was maximized with the lowest rates of flumioxazin or diclosulam PRE followed by imazapic EPOST.

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Maximizing Herbicide Efficiency with Mixtures and Expert Systems

Cited by 37 publications

References 8 publications

Control of common cocklebur (Xanthium strumarium L.) with pre- and postemergence herbicides in soybean

Control of common cocklebur (Xanthium strumarium L.) with pre- and postemergence herbicides in soybean

Effect of amitrole and 2,4‐D applied preplant and pre‐emergence in soybean (Glycine max)

Weed Management Using Reduced Rate Combinations of Diclosulam, Flumioxazin, and Imazapic in Peanut

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