Broadleaf Weed Control and Potato Crop Safety with Postemergence Rimsulfuron, Metribuzin, and Adjuvant Combinations

Hutchinson, Pamela; Eberlein, Charlotte V.; Tonks, Dennis J.

doi:10.1614/wt-03-172r1

Cited by 26 publications

(26 citation statements)

References 11 publications

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“…Probably different environmental factors occurring in real field conditions may alter pumpkin plants sensitivity to bentazon as it is a contact herbicide. For instance, Hutchinson et al (2004) have reported that higher temperature has led to increasing the sensitivity of potato plants to rimsulfuron. Current label specifications in the Iranian pesticide market do not recommend the application of bentazon and trifluralin in pumpkin fields.…”

Section: Herbicide Dry Weight Reduction (%)mentioning

confidence: 99%

Differential Tolerance of Pumpkin Species to Bentazon, Metribuzin, Trifluralin, and Oxyfluorfen

et al. 2017

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-Response of pumpkin species including Cucurbita pepo convar. Pepo, Cucurbita moschata Duch, Cucurbita pepo, Cucurbita maxima, and Lagenaria vulgaris to bentazon, trifluralin, metribuzin, and oxyfluorfen was evaluated in Outdoor pot experiments in 2014 and 2015. Different postemergence doses (bentazon and oxyfluorfen) and preplant incorporated (metribuzin and trifluralin) herbicides were evaluted on pumpkin species at various growth stages. Results showed that the sensitivity of pumpkins species to applied herbicide varied greatly among tested species. On overall, dry weights of Cucurbita spp. were reduced by 12.50%, 48.60%, 23%, and 73.13% when pumpkin was treated with trifluralin, metribuzin, bentazon and oxyfluorfen, respectively. Pumpkin crops were not tolerant of metribuzin and oxyfluorfen and plants showed injures. Results indicated that trifluralin and bentazon have the potential for possible application in pumpkin particularly when broadleaf weeds are dominant.Keywords: broadleaf weeds, crop, dominant weeds, sensitivity. RESUMO -A reação de espécies de abóbora, incluindo

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Section: Herbicide Dry Weight Reduction (%)mentioning

confidence: 99%

Differential Tolerance of Pumpkin Species to Bentazon, Metribuzin, Trifluralin, and Oxyfluorfen

et al. 2017

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“…Some studies have demonstrated that spray adjuvants are effective in improving the activity of several herbicides (Hutchinson et al . ; Sanyal et al . ; McCullough & Hart ; Idziak et al .…”

Section: Resultsmentioning

confidence: 99%

Comparative effects of different types of tank‐mixed adjuvants on the efficacy, absorption and translocation of cyhalofop‐butyl in barnyardgrass (Echinochloa crus‐galli [L.] Beauv.)

Chen

et al. 2016

Weed Biology and Management

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The efficacy of cyhalofop-butyl with tank-mixed adjuvants on barnyardgrass (Echinochloa crus-galli [L.] Beauv.), as well as the physico-chemical properties, absorption and translocation, was evaluated and compared. The efficacy experiment showed that the treatments with tank-mixed adjuvants were approximately twofold more effective than with cyhalofop-butyl alone at 2% (v/v) (silwet 625 at 0.05%). The surface tension decreased and the droplets could spread automatically on the leaves after adding the adjuvants. The spreading speed increased significantly with the adjuvants. The epidermal cells and wax layer were damaged by the adjuvants. The absorption of cyhalofop-butyl was increased significantly after adding the tank-mixed adjuvants. GY-T12 and silwet 625 were conducive to upward translocation and all six tank-mixed adjuvants promoted the downward translocation of the herbicide. The results demonstrate that adjuvants can have a considerable influence on the efficiency of cyhalofop-butyl on barnyardgrass.

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“…Herbicidal activity of topramezone and isoxaflutole, two other Group 27 herbicides, is also improved with the addition of MSO [31] [41]. Hutchinson et al [42] found that MSO enhanced activity of metribuzin, resulting in greater control of lambsquarters, hairy nightshade, redroot pigweed and kochia when compared to nonionic surfactants. The addition of UAN to tolpyralate + atrazine with MSO did not increase the control of GR waterhemp and GR Canada fleabane (Table 3 and Table 6).…”

Section: Discussionmentioning

confidence: 99%

Influence of Adjuvants on the Control of Glyphosate-Resistant Canada Fleabane and Waterhemp in Corn with Tolpyralate

Langdon¹,

Soltani²,

Raedar³

et al. 2020

AJPS

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Tolpyralate is a new benzoylpyrazole herbicide for weed management in corn. It is recommended to be co-applied with atrazine along with the adjuvants methylated seed oil concentrate (MSO) plus an ammonium nitrogen fertilizer, such as urea ammonium nitrate (UAN). Two studies were conducted on glyphosate-resistant (GR) Canada fleabane and GR waterhemp to determine if an additional adjuvant is still required when tolpyralate plus atrazine are tankmixed with a commercial glyphosate formulation (Roundup WeatherMAX®) in corn. Trials were conducted over a two-year period (2018-19) on farms in south western Ontario with confirmed GR populations. When co-applied with Roundup WeatherMAX®, the addition of MSO to tolpyralate + atrazine increased control of GR waterhemp 9%; however, there was no increase in GR Canada fleabane control from the addition of additional adjuvants. At 8 WAA, all treatments provided > 91% and > 84% control of GR waterhemp and GR Canada fleabane, respectively. This study concludes that the addition of Roundup Weathermax® to tolpyralate plus atrazine improves the control of GR waterhemp and GR Canada fleabane in corn.

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Broadleaf Weed Control and Potato Crop Safety with Postemergence Rimsulfuron, Metribuzin, and Adjuvant Combinations

Cited by 26 publications

References 11 publications

Differential Tolerance of Pumpkin Species to Bentazon, Metribuzin, Trifluralin, and Oxyfluorfen

Differential Tolerance of Pumpkin Species to Bentazon, Metribuzin, Trifluralin, and Oxyfluorfen

Comparative effects of different types of tank‐mixed adjuvants on the efficacy, absorption and translocation of cyhalofop‐butyl in barnyardgrass (Echinochloa crus‐galli [L.] Beauv.)

Influence of Adjuvants on the Control of Glyphosate-Resistant Canada Fleabane and Waterhemp in Corn with Tolpyralate

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