The Role of Biofungicides and Organic Fertilizer in the Management of Dollar Spot in Bermudagrass

Tomaso‐Peterson, Maria; Perry, D. H.

doi:10.1094/ats-2007-0911-01-rs

Cited by 6 publications

(7 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the field experiment, dollar spot incidence varied from year to year. Environmental conditions, such as temperature and moisture, likely contributed to variation in dollar spot occurrence (Tomaso‐Peterson and Perry, 2007). In 2007, air temperatures were 9 to 18°C greater than in 2008 during the first 2 wk of the experiment.…”

Section: Discussionmentioning

confidence: 99%

“…For the in vitro study, treatments were arranged in a completely randomized design with eight replications, and the experiment was performed twice. Variances between the two experiments were homogeneous as determined by Levene's test, and therefore data were combined for ANOVA by PROC GLM (SAS Institute, 2008). Nonlinear regression of percentage inhibition of fungal mycelial growth in relation to diameter of the PDA plates was performed to determine the MSM dosage effect for the in vitro study 3 d after treatment (DAT).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Oriental Mustard (Brassica juncea) Seed Meal for Control of Dollar Spot on Creeping Bentgrass (Agrostis stolonifera) Turf

Pan

Earlywine

Smeda

et al. 2017

Intl Turfgrass Soc Res J

View full text Add to dashboard Cite

This research evaluated oriental mustard [Brassica juncea (L.) Czern.] seed meal (MSM) for safety and efficacy in control of dollar spot (Sclerotinia homoeocarpa F.T. Benn.) in vitro and on creeping bentgrass (Agrostis stolonifera L.) turf. As a plant residual, MSM is the seed fraction that remains after seeds are crushed and oil is removed. The meal contains both nitrogen and secondary compounds termed glucosinolates. When moist, glucosinolates convert to fungicidal isothiocyanates. The in vitro study determined that MSM at higher rates completely suppressed S. homoeocarpa mycelial growth. A field study was conducted for 2 yr with three sequential applications of MSM at seven rates ranging from 0 to 1680 kg ha−1, in addition to the fungicide iprodione at 3.1 kg a.i. ha−1. In 2007, the severity of dollar spot infections varied among MSM treatments, with greater rates reducing dollar spot up to 82% compared with untreated control. In 2008, MSM at 1680 kg ha−1 reduced dollar spot by 60% or greater 8 to 14 wk after initial application (WAIA). After application of MSM at 1120 kg ha−1 or greater, the color of creeping bentgrass color was reduced 1 point on a 1 to 9 scale, but this reduction in color only lasted for 2 wk, and turf color in treated plots increased significantly by 6 WAIA compared with the untreated plots. Collectively, our results suggest that MSM is an organic material that could be integrated into a dollar spot management program on turf for minimizing selection of pathogen resistance to fungicides.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effect of Oriental Mustard (Brassica juncea) Seed Meal for Control of Dollar Spot on Creeping Bentgrass (Agrostis stolonifera) Turf

Pan

Earlywine

Smeda

et al. 2017

Intl Turfgrass Soc Res J

View full text Add to dashboard Cite

show abstract

“…Compacting snow is a practice that may lower the air temperature at the snow–soil interface below freezing and prevent certain snow molds from developing (Blunt and Tisserat, 2007). Additionally, the use of organic (Nelson and Craft, 1992; Liu et al, 1995; Boulter et al, 2002) and biological materials (Nelson, 1997; Hsiang et al, 1999; Tomaso‐Peterson and Perry, 2007) in turf systems have shown positive results for suppressing a variety of diseases, including some snow molds, in the Eastern United States and Canada. However, these materials have not shown similar or consistent effectiveness in the Western United States (Johnston and Golob, 2003; Blunt and Tisserat, 2007), and specifically little information on using cultural practices to manage snow molds from the Intermountain West is published.…”

Section: Useful Conversionsmentioning

confidence: 99%

Cultural, Organic, and Biological Methods for Snow Mold Control on Putting Greens in the Intermountain West

Dyke¹,

Johnson

2017

Crop Forage & Turfgrass Mgmt

View full text Add to dashboard Cite

Core Ideas Topdressing every 2 wk reduced snow mold severity by 11% compared with every 4 wk in 1 of 2 yr. This cultural practice should be evaluated further for managing winter diseases. Compacting snow with snowshoes reduced snow mold severity 3% the first year but had no effect the second year when damage occurred before snow could be compacted. Organic fertilizers, biological materials, and the compost did not provide adequate control of snow molds. A mineral oil was the only nonfungicidal commercial product to have efficacy on snow molds. Turf treated with traditional fungicides PCNB and propiconazole prior to snow cover had the best control of snow molds. Snow mold pathogens can damage golf course turf in winter, and few alternatives to fungicides currently exist for effective control. Cultural strategies including sand topdressing frequency and snow compaction using snowshoes, in combination with organic and biological commercially available products, were evaluated for snow mold control on a putting green for two seasons. Sand topdressing every 2 wk during the growing season reduced snow mold severity 11% in 2010, and compacting snow in winter reduced severity by 3%. Neither cultural practice reduced damage in 2011, when pressure from snow molds was higher. Most organic and biological materials did not suppress snow molds in either year relative to the fertilizer control, whereas turf treated with traditional fungicides provided the best control. A mineral oil was the only alternative material to have efficacy on snow molds, providing 54% control in 2010 and 34% control in 2011.

show abstract

“…During periods of high disease pressure, significant turf damage and unacceptable quality may result if left untreated with synthetic pesticides (3,4,6). Research is ongoing in the area of biostimulants, elicitors, and organic pesticides, (7,9,12) and will likely produce effective management practices. But to date, relatively few programs are applicable and available to golf course superintendents.…”

Section: Introductionmentioning

confidence: 99%

Interest, Incentives, and Education Towards Organic Golf Course Management: A Study of Utah Golf Course Superintendents

Johnson

Dyke²,

Hodgson

et al. 2012

Applied Turfgrass Science

View full text Add to dashboard Cite

Extensive discussions of sustainability and environmental impact of golf course management have raised interest in how management can be changed to minimize impact. Management using natural organic methods is possible; however, they often do not provide the expected quality, especially during high disease pressure. In the arid West, disease pressure is much lower than humid regions, making organic management more possible. However, many factors influence turf management decisions made by golf course superintendents. We surveyed superintendents in Utah to explore management decisions and interest in organic programs, followed by online education offered on organic management. A survey in the following year explored how their practices changed in response to the education and other factors. In most cases, the superintendents themselves were the primary causes of change at their golf courses. While superintendents expressed some interest in organic practices, incentives to make those changes appeared limited. Interest in environmental issues increased, but for more than half of the respondents, no changes in management occurred. Already, Utah superintendents rely heavily on cultural practices but changes in management towards organic practices will likely require more effective products and management techniques together with interest by others at the golf course facilities.

show abstract

The Role of Biofungicides and Organic Fertilizer in the Management of Dollar Spot in Bermudagrass

Cited by 6 publications

References 20 publications

Effect of Oriental Mustard (Brassica juncea) Seed Meal for Control of Dollar Spot on Creeping Bentgrass (Agrostis stolonifera) Turf

Effect of Oriental Mustard (Brassica juncea) Seed Meal for Control of Dollar Spot on Creeping Bentgrass (Agrostis stolonifera) Turf

Cultural, Organic, and Biological Methods for Snow Mold Control on Putting Greens in the Intermountain West

Interest, Incentives, and Education Towards Organic Golf Course Management: A Study of Utah Golf Course Superintendents

Contact Info

Product

Resources

About