Effects of Halosulfuron on Weed Control in Commercial Honeydew Crops

Brandenberger, Lynn; Talbert, Ronald E.; Wiedenfeld, R. P.; Shrefler, James W.; Webber, Charles L.; Malik, Mayank S.

doi:10.1614/wt-04-152r

Cited by 18 publications

(15 citation statements)

References 15 publications

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“…It is known to infest many crops including Raphanus sativus L. (Kaul and Mangal 1987, Grichar and Sestak 1998, Inderjit et al 1999, Brandenberger et al 2005. In particular, V. encelioides is problematic for peanut farmers in southern states of the United States such as Oklahoma or Texas where, over the long growing season (140-160 days), soil-applied herbicides have time to degrade, allowing broad-leaved weeds to infest the peanut crop Sestak 1998, Farris andMurray 2006).…”

Section: Illustrationsmentioning

confidence: 99%

“…When used alone, bentazon (1.12 kg ha À1 ) and 2,4-DB (0.28 kg ha À1 ) achieved at least 90% control of V. encelioides, and aciflouren (0.42 kg ha À1 ) and pyridate provided only 80% control (Grichar and Sestak 1998). Brandenberger et al (2005) achieved 100% control of V. encelioides using the sulfonylurea herbicide halosulfuron in a honeydew melon (Cucumus melo L.) crop. However, only about 70% control of V. encelioides was achieved with another sulfonylurea herbicide, prosulfuron (CGA-15205) in a Texas peanut crop (Grichar et al 2000).…”

Section: Historymentioning

confidence: 99%

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Time of Removal of Crownbeard (Verbesina encelioides) on Peanut Yield

2005

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Field experiments were conducted in southwestern Oklahoma near Colony in 2000 and near Ft. Cobb in 2001 to quantify the effect of time of removal of a natural population of crownbeard on peanut yield. Weed densities and dry weed weights were measured at eight weed-removal times, and in-shell peanut yields were determined at harvest. Crownbeard was removed at 0 (the weed-free check), 4, 6, 8, 10, 12, 14, and 16 wk (full season) after crop emergence (WAE). Weed density was a poor predictor for dry weed weight and peanut yield; however, dry weed weight and time of removal were good predictors for peanut yield. Weed growth was minimal up to 4 WAE and increased linearly after that time. For each week of weed growth, a 0.52 kg/plot increase in dry weed weight was measured. Peanut yield decreased linearly because of crownbeard competition. For each kilogram per plot increase in dry weed weight, a 129 kg/ha or 5.1% peanut yield reduction took place. For each week of weed interference, a 75 kg/ha or 2.8% peanut yield reduction occurred. Crownbeard removal by or before 4 WAE will minimize losses in peanut yield because of interference.

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Section: Illustrationsmentioning

confidence: 99%

Section: Historymentioning

confidence: 99%

Time of Removal of Crownbeard (Verbesina encelioides) on Peanut Yield

2005

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“…Unlike other weeds, purple and yellow nutsedge seedlings readily penetrate polyethylene bed covers, destroying the mulch in addition to reducing crop yield. Purple and yellow nutsedge can be controlled with halosulfuron applied POST (Brandenberger et al 2005b;Johnson and Mullinix 2005;Nelson and Renner 2002;Vencill et al 1995), but most other common weeds of the Southeast are not among those listed as controlled on the halosulfuron registration. In addition, purple and yellow nutsedge and other broadleaf weeds and grasses can be frequent problems in cantaloupe grown on polyethylene mulch, especially when weeds emerge in the opening adjacent to the crop, where interference with the crop is maximized.…”

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confidence: 99%

Tolerance of Cantaloupe to Postemergence Applications of Rimsulfuron and Halosulfuron

Norsworthy

Meister

2007

Weed technol.

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Field trials were conducted in the spring of 2004 and the spring and summer of 2005 to evaluate cantaloupe tolerance to rimsulfuron and halosulfuron applied to cantaloupe at the two-leaf stage, five- to six-leaf stage, plants having 30- to 40-cm vines, and plants having up to 5-cm-diam melons. Additionally, control of eight weed species was evaluated in these trials in 2005. Cantaloupe plant injury from rimsulfuron differed among application timings and trials, but applications were generally more injurious when applied at the two early crop stages. Halosulfuron was less injurious to cantaloupe, but 31 and 14% injury occurred following the two-leaf and five- to six-leaf applications, respectively, in the second trial in 2005. In the first trial of 2005, number of marketable melons the first week of harvest was lower for all halosulfuron applications compared with the nontreated control (30 to 37% reduction). In the second trial of 2005, total number of marketable melons was comparable to the nontreated control for each of the halosulfuron treatments, except the five- to six-leaf and up to 5-cm-diam melon applications. Injury estimates were poor indicators of occurrence or absence of delays in crop earliness or number of marketable melons. Rimsulfuron was generally effective (≥ 80% control) in controlling seedling Texas panicum, large crabgrass, tall morningglory, pitted morningglory, and Palmer amaranth, but was ineffective against yellow and purple nutsedge and goosegrass. Halosulfuron was effective in controlling yellow and purple nutsedge, but was ineffective against Texas panicum, large crabgrass, goosegrass, pitted morningglory, tall morningglory, and Palmer amaranth.

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“…Halosulfuron applied PRE at 9 to 108 g/ha did not reduce watermelon yield in previous research (Brandenberger et al 2005b;Buker et al 1997). However, a lack of crop tolerance to foliar applications of halosulfuron has been an issue for many vegetable crops (Buker et al 2004;Flanders and Culpepper 2002;Grichar et al 2003;Starke et al 2006;Walters et al 2005;Webster et al 2003).…”

Section: Halosulfuron Timing Bmentioning

confidence: 74%

Seeded Watermelon and Weed Response to Halosulfuron Applied Preemergence and Postemergence

Macrae¹,

Culpepper²,

Batts³

et al. 2008

Weed Technology

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Managing weeds in watermelon is challenging because of the limited availability of herbicides approved for use in this crop. Field experiments on efficacy and crop tolerance were conducted to determine the potential for halosulfuron use in watermelon in Georgia and North Carolina. Halosulfuron was applied PRE, early POST (EPOST; one-leaf watermelon), and late POST (LPOST; watermelon with 30-cm runners) at 26, 39, and 52 g ai/ha. Under weed-free conditions, PRE treatments did not injure watermelon. EPOST and LPOST treatments caused 45 and 34% injury 2 wk after treatment, respectively, averaged over halosulfuron rate. EPOST treatments reduced watermelon fruit number and total weight by 15 and 22%, respectively, and LPOST treatments reduced total fruit weight 12%. Halosulfuron PRE at 39 or 52 g/ha provided 94% or greater control of carpetweed, Palmer amaranth, and smooth pigweed. EPOST treatments controlled 84 and 88% of yellow nutsedge and smooth pigweed, respectively, but LPOST treatments controlled less than 83% of all weed species. Sequential applications of halosulfuron at 26 g/ha PRE and 26 g/ha LPOST controlled 89 to 99% of carpetweed, coffee senna, Palmer amaranth, smooth pigweed, and yellow nutsedge. Our data suggest growers can effectively use halosulfuron PRE in seeded watermelon. However, POST applications should be made only after watermelon has 30-cm runners and as a salvage spot treatment where previous weed control strategies have failed to provide adequate control.

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Effects of Halosulfuron on Weed Control in Commercial Honeydew Crops

Cited by 18 publications

References 15 publications

Time of Removal of Crownbeard (Verbesina encelioides) on Peanut Yield

Time of Removal of Crownbeard (Verbesina encelioides) on Peanut Yield

Tolerance of Cantaloupe to Postemergence Applications of Rimsulfuron and Halosulfuron

Seeded Watermelon and Weed Response to Halosulfuron Applied Preemergence and Postemergence

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