A5061307460- Plant Pathogens and Fungal Diseases
- Plant Pathogens and Resistance
- Plant Disease Resistance and Genetics
- Fungal Plant Pathogen Control
- Plant pathogens and resistance mechanisms
- Plant Virus Research Studies
- Plant Disease Management Techniques
- Yeasts and Rust Fungi Studies
- Plant Pathogenic Bacteria Studies
- Remote Sensing in Agriculture
- Powdery Mildew Fungal Diseases
- Plant and Fungal Interactions Research
- Agronomic Practices and Intercropping Systems
- Nematode management and characterization studies
- Banana Cultivation and Research
- Spectroscopy and Chemometric Analyses
- Leaf Properties and Growth Measurement
- Mycorrhizal Fungi and Plant Interactions
- Insect-Plant Interactions and Control
- Weed Control and Herbicide Applications
- Hops Chemistry and Applications
- Legume Nitrogen Fixing Symbiosis
- Genetics and Plant Breeding
- Plant-Microbe Interactions and Immunity
- Horticultural and Viticultural Research
Cornell University
2016-2025
Plant (United States)
2015-2024
Cornell University Agricultural Experiment Station
2020-2023
Ithaca College
2023
Rochester Institute of Technology
2020
New York State Department of Agriculture and Markets
2017-2019
National Institute of Food and Agriculture
2019
University of Southern Queensland
2019
University of Tasmania
2004-2018
University of California, Davis
2018
An interactive, iterative smartphone application was used on color images to distinguish diseased from healthy plant tissues and calculate percentage of disease severity. The user touches the application's display screen select up eight different colors that represent tissues. then moves a threshold slider until only symptomatic have been transformed into blue hue. pixelated image is analyzed percentage. This study reports accuracy, precision, robustness Leaf Doctor using six diseases with...
Abstract Cercospora leaf spot, caused by the fungal pathogen beticola , is most destructive foliar disease of sugar beet worldwide. This review discusses C. genetics, genomics, and biology summarizes our current understanding molecular interactions that occur between its host. We highlight known virulence arsenal as well ability to overcome currently used management strategies. Finally, we discuss future prospects for study infections in context newly employed tools uncover additional...
Abstract Phytopathometry can be defined as the branch of plant pathology (phytopathology) that is concerned with estimation or measurement amount disease expressed by symptoms signs a pathogen on single group specimens. critical for many reasons, including analyzing yield loss due to disease, breeding resistance, evaluating and comparing control methods, understanding coevolution, studying epidemiology ecology. underpins all activities in extends into related disciplines, such agronomy,...
Rational management of plant diseases, both economically and environmentally, involves assessing risks the costs associated with correct incorrect tactical decisions to determine when control measures are warranted. Decision support systems can help inform users disease risk thus assist in accurately targeting events critical for management. However, many instances adoption these use routine has been perceived as slow. The under-utilization some decision is likely due technical perception...
White mould ( Sclerotinia sclerotiorum ) is a destructive disease of soybean worldwide. However, little known its impact on production in Brazil. A meta‐analytic approach was used to assess the relationship between incidence and yield (35 trials) sclerotia (29 experiments conducted 14 locations across four seasons. Region, site elevation season included as moderators random‐effects random‐coefficients models did not significantly explain variability slopes incidence–yield relationship. The...
The genomes of Chrysoporthe austroafricana, Diplodia scrobiculata, Fusarium nygami, Leptographium lundbergii, Limonomyces culmigenus, Stagonosporopsis tanaceti, and Thielaviopsis punctulata are presented in this genome announcement. These seven from endophytes, plant pathogens economically important fungal species. sizes range 26.6 Mb the case lundbergii to 44 for austroafricana. availability these data will provide opportunities resolve longstanding questions regarding taxonomy species...
Draft genomes of the species Annulohypoxylon stygium, Aspergillus mulundensis, Berkeleyomyces basicola (syn. Thielaviopsis basicola), Ceratocystis smalleyi, two Cercospora beticola strains, Coleophoma cylindrospora, Fusarium fracticaudum, Phialophora cf. hyalina and Morchella septimelata are presented. Both mating types (MAT1-1 MAT1-2) included. Two strains cylindrospora that produce sulfated homotyrosine echinocandin variants, FR209602, FR220897 FR220899 The sequencing has enabled mapping...
Limited information is available on the spread of Grapevine red blotch virus (GRBV, genus Grablovirus, family Geminiviridae) in vineyards. To investigate ecological aspects disease spread, sticky cards to catch flying insects were placed 2015 (April November) and 2016 (March a vineyard study site California where incidence increased by nearly 20% between 2014 2016. Subsets insect species or taxa removed from card traps individual specimens tested for presence GRBV multiplex polymerase chain...
Cercospora leaf spot (CLS), caused by beticola, is one of the major diseases affecting productivity and profitability beet production worldwide. Fungicides are critical for control this disease most commonly used products quinone outside inhibitor (QOI) azoxystrobin. In total, 150 C. beticola isolates were collected from two commercial processing table fields in Batavia, NY 2014. The mating types entire population determined, genetic diversity a subset samples (n = 48) was assessed using...
A complex of foliar diseases affects onion production in New York, including Botrytis leaf blight (Botrytis squamosa), purple blotch (Alternaria porri), Stemphylium (SLB; vesicarium), and downy mildew (Peronospora destructor). Surveys were conducted 2015 2016 to evaluate the cause severe premature dieback York fields. SLB was most prevalent disease among fields with greatest incidence, surpassing mildew, blotch, blight. Sequencing internal transcribed spacer region ribosomal DNA...
Stemphylium leaf blight (SLB), caused by vesicarium, is a foliar disease of onion worldwide, and has recently become an important in the northeastern United States Ontario, Canada. The symptoms begin as small, tan to brown lesions on leaves that can progress defoliate plants. Crop loss occurs through reduced photosynthetic area, resulting smaller, lower-quality bulbs. Leaf necrosis SLB also compromise bulb storage, green are required for uptake sprout inhibitors applied prior harvest....
Cercospora leaf spot (CLS), caused by the fungus beticola Sacc., is a severe foliar disease that affects health of table beet crops. Remote sensing techniques, specifically unmanned aerial systems (UAS), could offer valuable solution for evaluating progression and targeted fungicide application towards effectively managing CLS. We conducted UAS flights over C. inoculated plots at Cornell Agritech in Geneva, NY, USA during growing seasons 2021, 2022 2023. Five-band (475,560, 668, 717 840 nm)...
Root crops like sugarbeet and sweetpotato possess an aggregated value that sets them apart from other crops. This includes not only their economic importance but also high nutritional content, which can enhance global food security. However, the of these is significantly compromised by postharvest diseases, presenting major socio-economic challenges. Postharvest caused various fungal bacterial pathogens, affect during field growth, harvest, handling, storage. Addressing challenges requires...
Cercospora leaf spot (CLS), caused by the fungus beticola, is an important determinant of table beet foliar health. Primary inoculum sources include infested crop residues and alternative hosts, but seed-to-seedling transmission has also been reported. We evaluated localization C. beticola in seeds contribution to CLS outbreaks field studies. In seed dissection experiments, was more frequently isolated from pericarp (95.6%) operculum (30.4%) compared true (17.4%). Field trials Geneva...
Red blotch disease, a threat to the grape industry, is caused by grapevine red virus. This work first study epidemiological patterns in vineyard over course of decade, revealing an increase disease incidence from 3.9% 2014 36.4% 2023 with rapid virus spread proximal transmission hotspot. Logistic and exponential models provided best fit areas high low aggregation, respectively. An inverse spatial strains 1 2 suggested secondary mostly diseased neighboring vines influx background sources....
A new pathogen of pyrethrum ( Tanacetum cinerariifolium ) causing anthracnose was described as Colletotrichum tanaceti based on morphological characteristics and a four‐gene phylogeny consisting rDNA ‐ITS, β‐tubulin TUB2 ), glyceraldehyde‐3‐phosphate dehydrogenase GAPDH actin ACT gene sequences. The fungus produced perithecia in culture, requiring an opposite mating type isolate heterothallic manner. initial infection strategy leaves involved the formation appressoria followed by production...
The New York table beet industry is expanding and has unique challenges to minimize crop loss in both conventional organic production. Diseases may reduce plant population density increase heterogeneity a stand, the duration of time foliage healthy, decrease yield marketable roots. Rhizoctonia solani Kuhn Pythiumultimum Trow are dominant pathogen complex affecting stand root health. Cercospora leaf spot (CLS) caused by fungus, beticola Sacc., highly destructive disease foliar In production,...
Abstract Cercospora leaf spot (CLS), caused by beticola , is a major disease of Beta vulgaris worldwide. No sexual stage known for C. but in its asexual form it overwinters on infected plant debris as pseudostromata, and travels short distances rain splash-dispersed conidiospores. infects broad range host species may be seedborne. The relative contribution these inoculum sources to CLS epidemics table beet not well understood. Pathogen isolates collected from beet, Swiss chard common...