A new dollar spot disease of turfgrass caused by Clarireedia paspali

Hu, Jian; Zhou, Yuxin; Geng, Jiamei; Dai, Yuan; Ren, Haiyan; Lamour, Kurt

doi:10.1007/s11557-019-01526-x

Cited by 32 publications

(39 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Dollar spot, caused by the Clarireedia species (formerly Sclerotinia homoeocarpa), is one of the most economically important diseases of turfgrass worldwide [1,2]. A total of five distinct pathogenic species causing dollar spot within the genus Clarireedia have been documented [1,2], and it is speculated that additional species of Clarireedia may exist, possibly based on geographical distributions [2,3]. The five species in Clarireeida include the type species for the genus, C. homoeocarpa and four recently characterized species, C. bennettii, C. jacksonii, C. monteithiana and C. paspali.…”

Section: Introductionmentioning

confidence: 99%

“…The two species appear to be historical and represent a minority of the isolates which cause dollar spot. The modern species with worldwide distribution are C. jacksonii and C. monteithiana, which are also widely distributed in China [1]. C. paspali is an emerging species which frequently recovered from seashore paspalum (Paspalum vaginatum).…”

Section: Introductionmentioning

confidence: 99%

“…C. paspali is an emerging species which frequently recovered from seashore paspalum (Paspalum vaginatum). It has not been reported in regions or countries other than eastern and southern China [1]. However, the collection of more isolates from diverse regions around the world is needed to understand if the C. paspali is geographically restricted.…”

Section: Introductionmentioning

confidence: 99%

“…However, the collection of more isolates from diverse regions around the world is needed to understand if the C. paspali is geographically restricted. C. monteithiana and C. paspali isolates are predominantly collected from C4 turfgrass [1,2], suggesting a host preference in the two species. However, in contrast to a previous finding [2], C. jacksonii is not restricted to C3 turfgrass hosts and could be recovered from C4 turfgrass at a high frequency in China [1].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Global Distributions of Clarireedia Species and Their In Vitro Sensitivity Profiles to Fungicides

Zhang

Dong

et al. 2021

Agronomy

Self Cite

View full text Add to dashboard Cite

Dollar spot is reported to be caused by multiple Clarireedia species and is a serious problem on many turfgrasses around the world. To our knowledge, the distribution of different Clarireedia species and their sensitivity profiles to fungicides remains unknown. In this study, a total of 275 isolates were characterized by ITS sequence. Amounts of 124, 59 and 75 isolates were identified as C. jacksonii, C. monteithiana and C. paspali, respectively, while each species of C. homoeocarpa and C. bennettii had only five isolates. Four and three isolates were identified as two potential new species, which remained to be further characterized. C. jacksonii and C. monteithiana were distributed worldwide, while C. paspali was restricted to China. Of the isolates with host information, 81% (93/115) and 19% (22/115) of C. jacksonii isolates were collected from C3 and C4 plants, respectively, 97% (56/58) of the C. monteithiana isolates were collected from C4 plants and all C. paspali isolates were collected from C4 plants. The coexistence of different Clarireedia species on the same C4 host type in the same locales was found in Shanghai (Paspalum vaginatum), Jiangsu (Paspalum vaginatum) and Florida (Cynodon dactylon). The study revealed that differential fungicide sensitivity patterns were observed in different species in Clarireedia for the first time. Similar differential sensitivity profiles were also found in the locales with coexistence of at least two species. The findings from this study suggest that the adjacent coexistence of different Clarireedia species and the differential fungicide sensitivity profiles of different species will complicate dollar spot disease control.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Global Distributions of Clarireedia Species and Their In Vitro Sensitivity Profiles to Fungicides

Zhang

Dong

et al. 2021

Agronomy

Self Cite

View full text Add to dashboard Cite

show abstract

“…Pathogens of important non‐food plants were also discovered, such as Cytospora elaeagni associated with canker disease of Elaeagnus angustifolia a plant used to combat desertification in China (Zhang, Alvarez, Bonthond, Tian, & Fan, 2019), and two new fungal species causing leaf spots and dollar spots on amenity turf‐grasses (Hu et al, 2019; Liang, Li, Zhao, & Cai, 2019).…”

Section: New Fungi Published In 2019mentioning

confidence: 99%

New scientific discoveries: Plants and fungi

Cheek

Lughadha

Kirk

et al. 2020

Plants People Planet

207

144

View full text Add to dashboard Cite

show abstract

In vitro fungicide sensitivity of Clarireedia, Fusarium, and Microdochium isolates from grasses

Gagkaeva

Орина

Gavrilova

et al. 2022

Intl Turfgrass Soc Res J

View full text Add to dashboard Cite

Clarireedia spp., Fusarium culmorum, and Microdochium nivale are destructive and widespread fungal pathogens causing turfgrass disease. Chemical control is a key tool for managing these diseases on golf greens but are most effective when used in a manner that reduces overall inputs, maximizes fungicide efficacy, and minimizes the risk of fungicide resistance. In this study, sensitivity to eight commonly used fungicides was tested in 13 isolates of Clarireedia spp., F. culmorum, and M. nivale via in vitro toxicity assays. Fungicide sensitivity varied significantly among the three species, with isolates of F. culmorum showing the least sensitivity. The sensitivity of M. nivale to all tested fungicides was high (with the exception of tebuconazole), but only four fungicides (Banner Maxx®, Instrata® Elite, Medallion TL, and Switch® 62,5 WG) suppressed the growth of M. nivale completely at a concentration of 1% of the recommended dose. All three fludioxonil-containing fungicides either alone (Medallion TL) or in combination with difeconazole (Instrata® Elite) or cyprodinil (Switch® 62,5 WG) had the same high efficacy against isolates of both M. nivale and Clarireedia spp. On average, the Clarireedia isolates tested in this study showed high sensitivity to the tested fungicides, except for Heritage (azoxystrobin). The observed variation in sensitivity among isolates within the same fungal species to different fungicides needs further investigation, as an analysis of the differences in fungal growth within each fungal group revealed a significant isolate × fungicide interaction (p < .001). INTRODUCTIONFungal diseases are the primary cause of biological damage on golf greens in Nordic countries (

show abstract

A new dollar spot disease of turfgrass caused by Clarireedia paspali

Cited by 32 publications

References 33 publications

Global Distributions of Clarireedia Species and Their In Vitro Sensitivity Profiles to Fungicides

Global Distributions of Clarireedia Species and Their In Vitro Sensitivity Profiles to Fungicides

New scientific discoveries: Plants and fungi

In vitro fungicide sensitivity of Clarireedia, Fusarium, and Microdochium isolates from grasses

Contact Info

Product

Resources

About