Bell Pepper (<i>Capsicum annuum</i>) Tolerance to Imazosulfuron and Thifensulfuron-Methyl

Pekarek, Ryan; Monks, David W.; Jennings, Katherine M.; Hoyt, Greg D.

doi:10.1614/wt-d-12-00101.1

Cited by 5 publications

(5 citation statements)

References 17 publications

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“…Previous research has shown halosulfuron, trifloxysulfuron, and imazosulfuron applied POST-DIR caused minimal to no pepper injury (Bangarwa et al 2009;Pekarek et al 2013), which support the findings in our studies. Applying halosulfuron, imazosulfuron, and trifloxysulfuron through the drip irrigation did not cause injury to pepper in our studies.…”

Section: Resultssupporting

confidence: 93%

Tolerance of Bell Pepper to Herbicides Applied through a Drip Irrigation System

2016

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Drip irrigation is installed under polyethylene mulch to supply irrigation and nutrients to vegetables grown in plasticulture. This irrigation system also provides an alternative method for application of herbicides into the plant bed for control of yellow and purple nutsedge. Greenhouse and field studies were conducted to determine bell pepper tolerance to halosulfuron, imazosulfuron, and trifloxysulfuron applied POST (over the top of pepper in greenhouse study, POST-directed in the field study) or soil applied (applied by hand with water in greenhouse study or through drip irrigation in the field study). In greenhouse studies, pepper injury from halosulfuron, imazosulfuron, and trifloxysulfuron applied POST was similar at 14 and 21 d after treatment (DAT; 21 to 35% and 54 to 60%, respectively). Halosulfuron, imazosulfuron, and trifloxysulfuron soil applied in greenhouse studies caused 6 to 8% and 13 to 20% injury to pepper at 14 and 21 DAT, respectively. Pepper injury in greenhouse studies increased as rate of halosulfuron, imazosulfuron, and trifloxysulfuron increased regardless of application method (soil or POST applied). Dry pepper weight at 28 DAT followed an inverse linear response to increasing rates of halosulfuron, imazosulfuron, and trifloxysulfuron. In field studies, bell pepper height among herbicide treatments ranged from 32 to 37 cm at 14 DAT and was not different from the nontreated check (36 cm). Number one grade (7.8 to 14.7 MT ha−1) and fancy grade (2.1 to 2.8 MT ha−1) pepper fruit yield was not different in herbicide-treated pepper compared with yield of pepper in the nontreated check (10.0 to 26.6 MT ha−1, respectively). Based on these studies, pepper has excellent crop tolerance to halosulfuron, imazosulfuron, and trifloxysulfuron applied through drip irrigation or POST-directed but is not tolerant to POST applications.

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Section: Resultssupporting

confidence: 93%

Tolerance of Bell Pepper to Herbicides Applied through a Drip Irrigation System

2016

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“…Crop yield results of this study are similar to those of Soltani et al (2005) and Robinson et al (2006a), who observed no decrease in yield when thifensulfuron-methyl was applied POST. The yield responses in this study are also similar to those reported for soybean with sulfonylurea herbicides with no negative effect on yield (Askew et al 1999;Reddy and Whiting 2000) and bell pepper, as reported by Pekarek et al (2013), while showing minimal crop injury. However, other studies have Table 2.…”

Section: Resultssupporting

confidence: 89%

Tolerance of Processing Tomato (Solanum lycopersicum L.) Varieties to Thifensulfuron-Methyl

Linder¹,

Mohseni-Moghadam²,

Felix³

et al. 2016

Weed technol.

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Field experiments were conducted at the Ohio Agricultural Research and Development Center in Wooster, OH, in 2005, 2006, and 2007 to evaluate the tolerance of eight tomato varieties to thifensulfuron-methyl and POST control of broadleaf weeds. Herbicide treatments included thifensulfuron-methyl at 0, 6, and 12 g ai ha−1. In 2005, significant injury was observed in variety TR122244 at 1 and 3 wk after treatment (WAT). The highest crop injury in 2005 was 38% at 1 WAT for variety TR122244. However, this variety experienced a conflicting effect on crop marketable yield when treated with the low and high rates of thifensulfuron-methyl in 2005. Variety TR122244 had the highest crop injury, yet produced the highest marketable yield when treated with either rate of thifensulfuron-methyl. At 3 WAT in 2005, significant injury occurred in variety 11111120, with 13% injury recorded for both the high and low rates of thifensulfuron-methyl. No significant injury resulted from either rate of thifensulfuron-methyl at 1, 3, or 6 WAT in 2006 or 2007. However, in 2006 a significant marketable yield reduction was observed for variety 97045116 when treated with the high rate of thifensulfuron-methyl. No varieties experienced significant marketable yield effects or injury when treated with either rate of thifensulfuron-methyl in 2007. Registration of thifensulfuron-methyl herbicide is not recommended at this time because of the potential for crop stunting and yield reduction in certain tomato varieties.

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“…Matsum. & Nakai] and bell pepper (Capsicum annuum) during early development include cultivation and the use of preemergence and postemergence herbicides including thifensulfuron-methyl (1.6 g ai ha −1 ), S-metolachlor (1.6 kg ai ha −1 ), imazosulfuron (0.2 kg ai ha −1 ), fomesafen (0.28 kg ai ha −1 ), dimethenamid-P (0.74 kg ai ha −1 ), and clomazone (0.24 kg ai ha −1 ), with control ranging from 88% to 100% (Buckelew 2009;Finney and Creamer 2008;Peachey et al 2012;Pekarek et al 2009). However, research also indicates that pink purslane's densely populated trichomes have the potential to negatively influence chemical deposition from postemergence applications (Matthews and Levins 1985).…”

Section: Introductionmentioning

confidence: 99%

Pink purslane (Portulaca pilosa) control with postemergence herbicides

Shay,

Prostko

2024

Weed Technol

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Pink purslane is often ranked as one of the most troublesome weeds in vegetable production systems in Georgia. Pink purslane encroachment along the field edges and in-field of agronomic crops has recently increased. Postemergence (POST) herbicides are an effective component of agronomic crop weed management. However, little research has addressed pink purslane control in agronomic crops. Therefore, greenhouse and field studies were conducted from 2022 to 2023 in Tifton, Georgia, to evaluate the response of pink purslane to POST herbicides commonly used in agronomic crops. Greenhouse screening provided preliminary evidence whereby 13 of the 21 POST herbicides evaluated provided ≥ 80% above-ground biomass reductions. These 13 herbicides were then used for field studies. Results from the field studies, pooled across two locations, indicated only 3 of the 13 herbicides provided above-ground biomass reductions ≥ 70% compared to the non-treated control. These herbicides included atrazine at 1682 g ai ha-1, glufosinate at 656 g ai ha-1, and lactofen at 219 g ai ha-1 with 79%, 70%, and 83% biomass reduction, respectively (P < 0.05). This research suggests that many of the POST herbicides used in agronomic crops will not effectively control pink purslane. Thus, when trying to manage pink purslane with POST herbicides in agronomic crops, growers should plant crops/cultivars tolerant of either atrazine, glufosinate, and/or lactofen.

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Bell Pepper (Capsicum annuum) Tolerance to Imazosulfuron and Thifensulfuron-Methyl

Cited by 5 publications

References 17 publications

Tolerance of Bell Pepper to Herbicides Applied through a Drip Irrigation System

Tolerance of Bell Pepper to Herbicides Applied through a Drip Irrigation System

Tolerance of Processing Tomato (Solanum lycopersicum L.) Varieties to Thifensulfuron-Methyl

Pink purslane (Portulaca pilosa) control with postemergence herbicides

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