Summer Patch and Kentucky Bluegrass Quality as Influenced by Cultural Practices

Stewart, R. L.; Dernoeden, Peter H.

doi:10.2134/agronj1991.00021962008300040005x

Cited by 26 publications

(14 citation statements)

References 12 publications

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“…Such research is likely the next step in investigating control of root diseases with antifungal compounds. Before 1984, all patch diseases with similar symptoms to summer patch were described as Fusarium blight (Davis and Dernoeden, 1991). Smiley and Fowler (1984) then described a separate pathogen, Phialophora graminicola, to be the causal agent of the summer patch disease.…”

Section: Discussionmentioning

confidence: 99%

“…Turgeon (1991) stated that lower mowing heights result in aesthetically more pleasing turfs but also reduce the turfs defenses against environmental and disease pressures. Davis and Dernoeden (1991) found that summer patch damage was less severe in Kentucky bluegrass turf maintained at 7.6 cm versus turf maintained at 3.8 cm. Susceptibility of plants to M. poae (reported as Phialophora graminicola) was more pronounced in turf mown at 2 cm versus unmowed (Smiley et al, 1985).…”

Section: B2 Summer Patch Controlmentioning

confidence: 92%

“…Kackley et al (1990a) showed that summer patch symptoms were most severe in turf that was kept in non-drought conditions. Symptoms were suppressed in treatments that were irrigated deeply and infrequently versus lightly and frequently (Davis and Dernoeden, 1991). This type of irrigation regime generally results in deeper root systems.…”

Section: B2 Summer Patch Controlmentioning

confidence: 98%

“…The authors stated that the beneficial results are most likely due to the acidifying and slow release effects of the sulfur coated urea. Sodium nitrate may have increased severity because it reduced rooting and did not acidify the soil (Davis and Dernoeden, 1991). Thompson et al …”

Section: B2 Summer Patch Controlmentioning

confidence: 99%

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Spatial and Temporal Distribution of Fungicides Applied to Creeping Bentgrass

Hockemeyer

Latin

2015

J. Environ. Qual.

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Turf managers often rely on fungicides to limit damage caused by root diseases. Because fungicides are applied to aboveground surfaces and do not move basipetally, they are effective against root pathogens only when fungitoxic concentrations migrate to the rhizosphere. This research focused on the distribution of modern fungicides in verdure, thatch, sand, and roots of creeping bentgrass [Agrostis stolonifera L. var. palustris (Huds.) Farw.] maintained as a putting green. The fungicides azoxystrobin (methyl (E)‐2‐[2‐[6‐(2‐cyanophenoxy)pyrimidin‐4‐yloxy]phenyl]‐3‐methoxyacrylate), propiconazole (1,2,4‐triazole, 1‐((2‐(2,4‐dichlorophenyl)‐4‐propyl‐1,3‐dioxolan‐2‐yl)methyl), pyraclostrobin (carbamic acid, [2‐[[[1‐(4‐chlorophenyl)‐1H‐pyrazol‐3‐yl]oxy]methyl]phenyl]methoxy‐,methyl ester), and thiophanate‐methyl (dimethyl 4,′4‐o‐phenylenebis[3‐thioallophanate]) were applied to replicate field plots in a water volume of 815 L ha−1. Plots were sampled at 0, 3, 7, 10, 14, 17, and 21 d after application by extracting cores measuring 1.9 cm in diameter by 3.8 cm deep. Cores were separated into verdure/thatch, sand, and roots before quantitative determination (liquid chromatography, triple quadrupole mass spectrometry) of fungicide residues. Fungicide residues in verdure/thatch declined steadily with time and support previously reported results describing fungicide depletion. Fungicides were detected in roots and sand within 5 h of application at very low (1–15 mg kg−1) concentrations and remained at low levels throughout the sampling period. Fungicides differed with respect to amounts recovered per turfgrass component. Azoxystrobin and propiconazole were associated with roots for the duration of the experiment, but pyraclostrobin was nearly undetectable. Near‐zero levels of all fungicides were detected in the sand component. Half‐life values in the verdure/thatch component ranged from 2.3 to 18.9 d.

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Section: Discussionmentioning

confidence: 99%

Section: B2 Summer Patch Controlmentioning

confidence: 92%

Section: B2 Summer Patch Controlmentioning

confidence: 98%

Section: B2 Summer Patch Controlmentioning

confidence: 99%

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Spatial and Temporal Distribution of Fungicides Applied to Creeping Bentgrass

Hockemeyer

Latin

2015

J. Environ. Qual.

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“…Small increases in cutting height have proven beneficial in reducing anthracnose severity; Inguagiato et al (2008) previously reported that mowing annual bluegrass at 3.6 mm reduced anthracnose disease up to 21% compared to mowing at 3.2 and 2.8 mm. Removing less leaf tissue could enhance the photosynthetic capacity of the turf sward, thus allowing for greater carbohydrate storage, better plant health and increased disease suppression (Younger, 1969); increased defoliation resulting from low mowing heights in Kentucky bluegrass ( Poa pratensis L.) decreased total nonstructural carbohydrates and increased summer patch disease (Davis and Dernoeden, 1991).…”

Section: Discussionmentioning

confidence: 99%

Lightweight Rolling Effects on Anthracnose of Annual Bluegrass Putting Greens

2012

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Lightweight rolling can be eff ectively used to increase ball roll distance (BRD) and infl uence anthracnose development on annual bluegrass (ABG) [Poa annua L. f. reptans (Hausskn) T. Koyama] putting green turf. Th e objective of this 3-yr fi eld trial was to evaluate the infl uence of roller type (i.e., sidewinder, triplex mounted vibratory, and nonrolled) and location (center or perimeter) of equipment traffi c on anthracnose severity, turf quality, and BRD of ABG turf maintained at 3.2 mm. Both roller types either had no eff ect or reduced disease 3 to 13% compared to nonrolled turf under moderate disease pressure in 2006, 2007, and 2008. Disease severity was not diff erent between the roller types on most dates; however, the heavier sidewinder roller did result in less disease than the triplex mounted vibratory roller on 4 of 13 rating dates in 2007 and 2008. Interestingly, perimeter plots had slightly less disease compared to center plots on 6 of 13 rating dates. Th e current study shows that the practice of rolling does not explain fi eld observations that greater anthracnose can oft en occur and is most severe within the perimeter of putting greens. Alternatively, this research indicates that rolling can be used to increase BRD and improve turf quality without exacerbating the severity of anthracnose disease on ABG putting green turf.

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Fine fescues: A review of the species, their improvement, production, establishment, and management

et al. 2020

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Fine fescues (Festuca L. spp.) comprise a group of five cool-season grasses used in turfgrass systems under many conditions: strong creeping red fescue (F. rubra L. ssp. rubra Gaudin), slender creeping red fescue [F. rubra L. ssp. littoralis (G. Mey.) Auquier], Chewings fescue [F. rubra L. ssp. commutata Gaudin; syn. F. rubra L. ssp. fallax (Thuill.) Nyman], hard fescue (F. brevipila Tracey), and sheep fescue [F. ovina L.; syn. F. ovina L. ssp. hirtula (Hack. ex Travis) M.J. Wilk.]. Their extensive geographic distribution is a result of adaptation to many different environmental and management conditions especially low-input sites. This review summarizes the history, production, establishment, management, use, and availability of fine fescues; discusses strengths and shortcomings of fine fescue; identifies knowledge gaps; and provides an outlook toward further research on this group of grasses. Improved cultivars have been developed in recent years that expand the geographic distribution and uses of species but additional efforts to increase seed yield and improve abiotic and biotic stress tolerances are still needed. Expanded use of fine fescue could be achieved through increased sod production of fine fescue, though current research-based information is limited. Research on fine fescue allelopathy and the contributions of fungal endophytes, both of which could lead to reduced pesticide requirements is important for improved pest management. Future research on fine fescues should focus on implementation and management of new cultivars that possess enhanced abiotic and biotic stress tolerance that will result in fewer inputs and improve the appeal and adoption of these low-input grasses.

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Summer Patch and Kentucky Bluegrass Quality as Influenced by Cultural Practices

Cited by 26 publications

References 12 publications

Spatial and Temporal Distribution of Fungicides Applied to Creeping Bentgrass

Spatial and Temporal Distribution of Fungicides Applied to Creeping Bentgrass

Lightweight Rolling Effects on Anthracnose of Annual Bluegrass Putting Greens

Fine fescues: A review of the species, their improvement, production, establishment, and management

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