Efficacy of SDHI fungicides, including benzovindiflupyr, against <i>Colletotrichum</i> species

Ishii, Hideo; Fan, Zhilong; Hu, Mengjun; Li, Xingpeng; Schnabel, Guido

doi:10.1002/ps.4216

Cited by 115 publications

(61 citation statements)

References 40 publications

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“…This phenomenon was also found in Colletotrichum complex [13][14][15]. Fungicides could also have different intrinsic activity in species complex, i.e less activity of benomyl was found in C. acutatum compared to C. gloeosporioides [16,17]. Another reason of importance to identify species is toxins production in some species.…”

Section: Introductionmentioning

confidence: 76%

Histone H3 gene is not a suitable marker to distinguish Alternaria tenuissima from A. alternata affecting potato

Zhang¹,

Tian²,

Duan³

et al. 2020

PLoS ONE

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Potato Alternaria leaf blight is one of the economically most important disease in potato production worldwide. A recent study reported a quick method to distinguish main Alternaria pathogens A. tenuissima, A. alternata, and A. solani using partial histone H3 gene sequences. Using this method, our collection of 79 isolates from 8 provinces in China were presumably separated into A. tenussima and A. alternata. But in depth morphological and genetic analysis casted doubt on this identification. Culture morphologies of six presumed A. alternata isolates (PresA_alt) and six presumed A. tenuissima isolates (PresA_ten) were not significantly different. PresA_ten isolates also produced conidia in branched chains which supposed to be A. aternata. Phylogenetic analyses were conducted using internal transcribed spacer region (ITS) and five genes commonly used for species identification including glyceraldehyde-3-phosphate dehydrogenase (GPDH), translation elongation factor 1-alpha (TEF1), β-tubulin, plasma membrane ATPase (ATPase), and calmodulin genes. The results showed that GPDH and TEF1 sequences of PresA_alt and PresA_ten isolates were identical. The 12 isolates did not cluster by presumed species neither by individual or concatenated sequence comparisons. The phylogeny-trait association analysis confirmed that the two group isolates were undistinguishable by those molecular markers. Analysis of histone H3 gene sequences revealed variable intron sequences between PresA_ten and PresA_alt isolates, but the amino acid sequences were identical. Our results indicate that the previously published method to distinguish Alternaria species based on histone H3 gene sequence variation is inaccurate and that the prevalence of A. tenuissima isolates in China was likely overestimated.

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Section: Introductionmentioning

confidence: 76%

Histone H3 gene is not a suitable marker to distinguish Alternaria tenuissima from A. alternata affecting potato

Zhang¹,

Tian²,

Duan³

et al. 2020

PLoS ONE

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“…The most recent SDH‐inhibiting fungicides possess a high level of efficacy against numerous important cereal crop pathogens. They contain chiral hydrophobic moieties at the ‘amide linker’ such as penflufen, isopyrazam, penthiopyrad sedaxane and benzovindiflupyr (Table ) …”

Section: Fungicidesmentioning

confidence: 99%

“…The pyrazole-4-carboxamides Table 2). 50 Amide linkers are usually phenyl and thienyl groups (penthiopyrad) that are substituted in the ortho-position by a larger branched or bicyclic chiral hydrophobic moiety. It seems that the angle defined by the amide linker and the chiral ortho-substituted 'hydrophobic moiety' in the phenyl or thienyl rings is important for the fungicidal spectrum and potency of SDH-inhibiting fungicides.…”

Section: Fungicidal Succinate Dehydrogenase Inhibitorsmentioning

confidence: 99%

Current status of chirality in agrochemicals

Jeschke

2018

Pest Management Science

152

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The agrochemical industry is searching continuously for new pesticides to develop products that have optimal efficacy, lower application rates in the field, increased selectivity, favourable toxicological and environmental safety, enhanced user friendliness and better economic viability. One strategy by which to achieve these ambitious goals makes use of the unique properties of molecules containing asymmetric centres. In the past, many natural products and their congeners have been a source of inspiration in the design of new active ingredients, and the molecular structures of the resulting compounds have become increasingly complex; some 30% contain fragments with asymmetric centres. However, despite enormous progress in catalytic asymmetric processes over the past decade, few agrochemicals are produced in an enantiomerically pure or enriched form on an industrial scale. Since 2007, ∼ 43% of the 44 products launched (insecticides, acaricides, fungicides, nematicides and herbicides) contain one or more asymmetric centres in the molecule (∼ 47%) and most have been launched as racemic mixtures of enantiomers or diastereomers. This review provides an overview of the current status of chiral agrochemicals launched over the past 10 years and describes the inherently connected challenges of modern agricultural chemistry by managing important aspects resulting from the stereochemistry of these innovative products. © 2018 Society of Chemical Industry.

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“…The advent of fungicide resistance has been documented in many modes of action groups in VA and surrounding states [19][20][21]. Moreover, risks of fungicide resistance development from the reliance on curative fungicide application have been discussed [11].…”

Section: Summary and Concluding Remarksmentioning

confidence: 99%

Evaluation of the Cultivar Effect on Wine Grape Fungal Diseases with a Use of a Low-Input Fungicide Regimen in Southeastern Virginia, USA

Nita¹

2016

Grape and Wine Biotechnology

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Wine grape cultivar selection was examined as a use of biotechnology and a part of integrated plant disease management in grape and wine production. The efficacy of 18 wine grape cultivars against various wine grape diseases was examined using a relatively low-input fungicide regimen to determine whether these diseases can be managed under hot and humid southeastern Virginia conditions over 5 years. Disease developments of black rot, Botrytis bunch rot, downy mildew, Phomopsis cane and leaf spot, and powdery mildew was evaluated. Although overall level of disease was low in each year, we observed a significant (P ≤ 0.05) effect of cultivar in many cases, indicating the importance of cultivar selection. Cultivars such as 'Norton', 'Noire', 'Traminette', 'Vidal blanc', and 'Viognier' were found to be less susceptible to the major diseases under Virginia environmental conditions.

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Efficacy of SDHI fungicides, including benzovindiflupyr, against Colletotrichum species

Cited by 115 publications

References 40 publications

Histone H3 gene is not a suitable marker to distinguish Alternaria tenuissima from A. alternata affecting potato

Histone H3 gene is not a suitable marker to distinguish Alternaria tenuissima from A. alternata affecting potato

Current status of chirality in agrochemicals

Evaluation of the Cultivar Effect on Wine Grape Fungal Diseases with a Use of a Low-Input Fungicide Regimen in Southeastern Virginia, USA

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