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You searched for: Journal Plant disease Remove constraint Journal: Plant disease Publication Year 2013 Remove constraint Publication Year: 2013 Source 2013 v.97 no.6 Remove constraint Source: 2013 v.97 no.6
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1. A Novel Spore Collection Device for Sampling Exposure Pathways: A Case Study of Puccinia psidii

Author:
Holliday, J. L.; Jones, S. A.; Simpson, J. A.; Glen, M.; Edwards, J.; Robinson, A.; Burgman, M. A.
Source:
Plant disease 2013 v.97 no.6 pp. 828-834
ISSN:
0191-2917
Subject:
Myrtus communis; Puccinia psidii; Puccinia recondita; Rosa; Uromycladium; case studies; clothing; coasts; cotton; denim; disease outbreaks; exposure pathways; flowers; hosts; plastics; polymerase chain reaction; signs and symptoms (plants); spores; wood; New South Wales
Abstract:
... A device comprising a filter attached to a vacuum cleaner was purpose-built to sample rust spores from three potentially high-risk pathways in Australia: passengers, fresh flowers, and sea cargo. The proportion of spores recovered from eight surfaces comparable with those on each pathway (cotton, denim, roses, carnations, chrysanthemums, wood, plastic, and metal) was estimated in the laboratory. S ...
DOI:
10.1094/PDIS-06-12-0565-RE

2. Arabis mosaic virus in Grapevines in New York State

Author:
Celebi-Toprak, F.; Thompson, J. R.; Perry, K. L.; Fuchs, M.
Source:
Plant disease 2013 v.97 no.6 pp. 849
ISSN:
0191-2917
Subject:
Arabis mosaic virus; Nematoda; Nicotiana tabacum; RNA; RNA-directed DNA polymerase; Vitis; antibodies; antigens; autumn; coat proteins; cultivars; deformation; genetic databases; germplasm; host range; hybridization; hybrids; internodes; leaves; oligonucleotide probes; polymerase chain reaction; sequence analysis; surveys; tissues; tobacco; vigor; vines; vineyards; viruses; wood; New York; Ontario
Abstract:
... In a limited survey of commercial vineyards and a germplasm repository in Ontario County, NY, 20 vines of Vitis sp. were tested in fall and spring 2010 to 2012 for viruses using a double-antibody sandwich (DAS)-ELISA and macroarray with oligonucleotide probes for grapevine viruses ((3) and unpublished). The plants selected for analysis included those showing atypical growth including leaf deformat ...
DOI:
10.1094/PDIS-07-12-0656-PDN

3. A Real-Time PCR Assay for Early Detection of Eastern Filbert Blight

Author:
Molnar, Thomas J.; Walsh, Emily; Capik, John M.; Sathuvalli, Vidyasagar; Mehlenbacher, Shawn A.; Rossman, Amy Y.; Zhang, Ning
Source:
Plant disease 2013 v.97 no.6 pp. 813-818
ISSN:
0191-2917
Subject:
Corylus avellana; blight; breeding; death; diagnostic techniques; dieback; disease control; financial economics; fungi; hazelnuts; internal transcribed spacers; perithecia; quantitative polymerase chain reaction; ribosomal DNA; Oregon
Abstract:
... Eastern filbert blight (EFB) is a devastating disease of European hazelnut, Corylus avellana, which causes economic losses in Oregon, where 99% of the U.S. crop is produced. The causal fungus, Anisogramma anomala, is native to eastern North America, where it is found associated with the American hazelnut (C. americana). Although C. americana is tolerant, EFB causes cankers, branch dieback, and dea ...
DOI:
10.1094/PDIS-11-12-1041-RE

4. Developing a Real-Time PCR Assay for Detection and Quantification of Pratylenchus neglectus in Soil

Author:
Yan, Guiping; Smiley, Richard W.; Okubara, Patricia A.; Skantar, Andrea M.; Reardon, Catherine L.
Source:
Plant disease 2013 v.97 no.6 pp. 757
ISSN:
0191-2917
Subject:
DNA primers; Pratylenchus neglectus; bioassays; crop rotation; cultivars; detection; internal transcribed spacers; microscopy; plant parasitic nematodes; polymerase chain reaction; quantitative analysis; ribosomal DNA; roots; soil; soil sterilization; wheat; Pacific States
Abstract:
... Pratylenchus neglectus is one of the most widespread and economically important nematodes that invades plant roots and restricts wheat productivity in the Pacific Northwest. It is challenging to quantify P. neglectus using microscopic methods for studies that require large-scale sampling, such as assessment of rotation crops, wheat cultivars, and other management practices. A real-time quantitativ ...
Handle:
10113/56556
DOI:
10.1094/PDIS-08-12-0729-RE

5. Diaporthe ambigua Associated with Post-Harvest Fruit Rot of Kiwifruit in Chile

Author:
Auger, J.; Pérez, I.; Esterio, M.
Source:
Plant disease 2013 v.97 no.6 pp. 843
ISSN:
0191-2917
Subject:
Diaporthe; agar; asci; ascospores; canes; color; conidia; ethanol; fruits; fungi; internal transcribed spacers; kiwifruit; mycelium; odors; peeling; perithecia; plant rots; postharvest diseases; pycnidia; relative humidity; tissues; Chile
Abstract:
... Kiwifruit is an important, expanding commercial crop in Chile. Several fungi have been reported to be associated with post-harvest rots of kiwifruit worldwide (2). During 2011 and 2012, kiwifruit produced in the VI and VII regions of Chile, showing symptoms of inner rot, were investigated with the aim of identifying the disease agent. The affected fruits had brown pubescent skin at the stem end th ...
DOI:
10.1094/PDIS-10-12-0982-PDN

6. Diversity of Rhizoctonia spp. Causing Foliar Blight on Brachiaria in Colombia and Evaluation of Brachiaria Genotypes for Foliar Blight Resistance

Author:
Alvarez, Elizabeth; Latorre, Michael; Bonilla, Ximena; Sotelo, Guillermo; Miles, John W.
Source:
Plant disease 2013 v.97 no.6 pp. 772-779
ISSN:
0191-2917
Subject:
Brachiaria; Rhizoctonia; Thanatephorus cucumeris; Urochloa brizantha; blight; disease resistance; genotype; greenhouse experimentation; hybrids; internal transcribed spacers; lowlands; mycelium; provenance; restriction fragment length polymorphism; tropical agriculture; tropics; virulence; Colombia
Abstract:
... Up to 50% of Brachiaria production in the tropics is affected by foliar blight caused by Rhizoctonia spp. Monothallic isolates of Rhizoctonia (n = 147) were cultured from different Brachiaria genotypes in Colombia and morphologically characterized and evaluated in pathogenicity trials in the greenhouse. Based on restriction fragment length polymorphism of the internal transcribed spacer region, 10 ...
DOI:
10.1094/PDIS-04-12-0380-RE

7. Effect of Fungicide Seed Treatments, Cultivars, and Soils on Soybean Stand Establishment

Author:
Urrea, K.; Rupe, J. C.; Rothrock, C. S.
Source:
Plant disease 2013 v.97 no.6 pp. 807-812
ISSN:
0191-2917
Subject:
temperature; cultivars; seedling diseases; trifloxystrobin; fludioxonil; quintozene; azoxystrobin; seedlings; soybeans; Thanatephorus cucumeris; carboxin; soil types; Pythium; planting; mefenoxam; seed treatment; growth chambers
Abstract:
... Seedling diseases are one of the major production problems for soybean. The primary control of soybean seedling diseases is by fungicide seed treatments but comparisons of seed treatments are difficult because stand responses are often erratic in the field. The objective of this study was to determine the efficacy of soybean fungicide seed treatments in naturally infested soils under controlled en ...
DOI:
10.1094/PDIS-08-12-0772-RE

8. Efficacy of Area-Wide Inoculum Reduction and Vector Control on Temporal Progress of Huanglongbing in Young Sweet Orange Plantings

Author:
Bassanezi, Renato B.; Montesino, Luiz H.; Gimenes-Fernandes, Nelson; Yamamoto, Pedro T.; Gottwald, Tim R.; Amorim, Lilian; Filho, Armando Bergamin
Source:
Plant disease 2013 v.97 no.6 pp. 789-796
ISSN:
0191-2917
Subject:
Candidatus Liberibacter; Citrus; Diaphorina citri; Psyllidae; disease incidence; disease outbreaks; field experimentation; greening disease; immigration; industry; inoculum; insecticides; oranges; soil drenching; trees; vector control; wet season; Brazil
Abstract:
... Huanglongbing (HLB), caused by ‘Candidatus Liberibacter’ spp. and transmitted by the Asian citrus psyllid Diaphorina citri (ACP), is an important threat to citrus industries worldwide, causing significant yield loss. The current recommended strategies to manage HLB are to eliminate HLB-symptomatic trees to reduce sources of bacterial inoculum and to apply insecticides to reduce psyllid vector popu ...
DOI:
10.1094/PDIS-03-12-0314-RE

9. Eradication of Plant Pathogens in Forest Nursery Irrigation Water

Author:
Machado, Patrícia da S.; Alfenas, Acelino C.; Coutinho, Marcelo M.; Silva, Cláudio M.; Mounteer, Ann H.; Maffia, Luiz A.; de Freitas, Rodrigo G.; Freitas, Camila da S.
Source:
Plant disease 2013 v.97 no.6 pp. 780-788
ISSN:
0191-2917
Subject:
Botrytis cinerea; Cylindrocladium; Ralstonia solanacearum; Xanthomonas axonopodis; chlorination; conidia; flocculation; forest nurseries; irrigation; irrigation water; plant pathogens; risk reduction; sand; ultrafiltration; water reuse; water treatment
Abstract:
... Interest in rational use and reuse of water has increased in recent years, especially in forest nurseries. However, before water can be reused in nurseries, it must be properly treated to eradicate plant pathogens to reduce risks of pathogen dispersal and losses to disease. In the present study, the efficacy of irrigation water treatment by ultrafiltration and conventional physical-chemical treatm ...
DOI:
10.1094/PDIS-08-12-0721-RE

10. First Report of Alternaria alternata Causing Blight on Zanthoxylum piperitum in China

Author:
Yang, W. X.; Liu, F.; Zhang, N.; Ren, X. D.; Liu, D. Q.
Source:
Plant disease 2013 v.97 no.6 pp. 840
ISSN:
0191-2917
Subject:
Alternaria alternata; DNA; Zanthoxylum piperitum; agar; ambient temperature; blight; branches; carrots; conidia; field experimentation; fungi; glass; inflorescences; internal transcribed spacers; leaf spot; leaves; mycelium; pathogenicity; pathogens; polymerase chain reaction; potatoes; sequence analysis; spraying; tissues; China
Abstract:
... Since 2009, brown leaf spot and panicle blight of Zanthoxylum piperitum (L.) DC. (“liujin,” commonly known as Japanese pepper and Japanese pricklyash) has been observed on 40% of the plants in the test field of Foresty Academy of Science in Hebei Province of China. When symptoms formed on leaves, a thick yellow spot appeared, which then turned brown. When on the spikes, brown lesions were observed ...
DOI:
10.1094/PDIS-09-12-0870-PDN

11. First Report of a New Leaf Spot Caused by Plectosphaerella cucumerina on Field Grown Endive (Cichorium endivia) in Italy

Author:
Garibaldi, A.; Gilardi, G.; Ortu, G.; Gullino, M. L.
Source:
Plant disease 2013 v.97 no.6 pp. 848
ISSN:
0191-2917
Subject:
Cichorium endivia subsp. endivia; DNA primers; agar; air temperature; anamorphs; conidia; disease severity; endive; farms; fluorescent lighting; fresh market; fungi; growth chambers; internal transcribed spacers; leaf spot; leaves; mycelium; pathogenicity; polymerase chain reaction; ribosomal DNA; sequence homology; sodium hypochlorite; spraying; streptomycin; sulfates; summer; tissues; Italy
Abstract:
... During summer 2012, symptoms of a new leaf spot disease were observed in several commercial fields in Treviglio (Bergamo, northern Italy) on plants of curly (Cichorium endivia var. crispum) and Bavarian (C. endivia var. latifolium) endive (Asteraceae). This crop is widely grown in the region for fresh market. The first symptoms on leaves of affected plants consisted of small (1 mm) black-brown spo ...
DOI:
10.1094/PDIS-01-13-0012-PDN

12. First Report of Anthracnose Caused by Colletotrichum gloeosporioides on Soybean (Glycine max) in Malaysia

Author:
Mahmodi, F.; Kadir, J. B.; Wong, M. Y.; Nasehi, A.; Puteh, A.; Soleimani, N.
Source:
Plant disease 2013 v.97 no.6 pp. 841
ISSN:
0191-2917
Subject:
Colletotrichum truncatum; Glomerella cingulata; Glycine max; actin; anthracnose; chitin synthase; climate; conidia; crops; dieback; field experimentation; fungi; genetic databases; girdling; glyceraldehyde-3-phosphate dehydrogenase; histones; leaves; pathogenicity; pathogens; pods; relative humidity; sequence analysis; soybeans; stems; tubulin; Malaysia
Abstract:
... Soybean (Glycine max L.) is one of the most economically important crops in the world, and anthracnose is known to infect soybean in most countries. Colletotrichum truncatum is the common pathogen causing anthracnose of soybean. However, at least five species of Colletotrichum have been reported on soybean worldwide (2). In July 2010, anthracnose symptoms were observed on soybean in the experiment ...
DOI:
10.1094/PDIS-10-12-0940-PDN

13. First Report of Anthracnose of Sunflower Sprouts Caused by Colletotrichum acutatum in New Mexico

Author:
French, J. M.; Randall, J. J.; Stamler, R. A.; Segura, A. C.; Goldberg, N. P.
Source:
Plant disease 2013 v.97 no.6 pp. 838
ISSN:
0191-2917
Subject:
peat; Helianthus annuus; girdling; conidia; ribosomal DNA; farms; financial economics; internal transcribed spacers; agar; pathogens; sequence analysis; cultivars; relative humidity; polymerase chain reaction; hyphae; Colletotrichum acutatum; anthracnose; disease diagnosis; seed germination; cotyledons; color; fungi; New Mexico
Abstract:
... In December 2011, edible sunflower sprouts (Helianthus annus) of two different commercially grown cultivars (Sungrown and Tiensvold) exhibiting stem and cotyledon lesions were submitted to the New Mexico State University Plant Clinic for disease diagnosis. The sample originated from an organic farm in Santa Fe County where the grower utilizes a small indoor growing facility. Stem lesions were elon ...
DOI:
10.1094/PDIS-07-12-0690-PDN

14. First Report of a 16SrIX Group (Pigeon Pea Witches'-Broom) Phytoplasma Associated with Sesame Phyllody in Turkey

Author:
Catal, M.; Ikten, C.; Yol, E.; Üstün, R.; Uzun, B.
Source:
Plant disease 2013 v.97 no.6 pp. 835
ISSN:
0191-2917
Subject:
Brassica rapa; Phytoplasma; Sesamum indicum; almonds; baked goods; cetyltrimethylammonium bromide; computer software; disease incidence; flowering; genetic databases; leaves; nucleotide sequences; oilseed crops; phylogeny; pigeon peas; polymerase chain reaction; restriction fragment length polymorphism; ribosomal DNA; sesame seed; sweets; witches' broom; Turkey (country)
Abstract:
... Sesame (Sesamum indicum L.) is an important oilseed crops widely grown in the southern regions of Turkey. Sesame seeds are primarily used in production of tahini as well as a garnish on sweets and bakery products in the country. Sesame plants with phyllody disease symptoms have increasingly been observed in the fields of Antalya province since 2007. The disease incidence in these fields was found ...
DOI:
10.1094/PDIS-11-12-1011-PDN

15. First Report of Bacterial Leaf Spot on Cichorium intybus Caused by Pseudomonas cichorii in Florida

Author:
Zhang, S.; Fu, Y.
Source:
Plant disease 2013 v.97 no.6 pp. 837
ISSN:
0191-2917
Subject:
Chrysanthemum; Cichorium endivia; Cichorium intybus; Pseudomonas cichorii; Taraxacum; agar; air conditioning; arginine deiminase; bacteria; celery; disinfection; economic impact; endive; ethanol; field experimentation; fluorescence; genes; greenhouses; hypersensitivity; leaf spot; leaves; lettuce; levan; nucleotide sequences; pathogenicity; plastic bags; potatoes; ribosomal RNA; runoff; salads; sequence analysis; sodium hypochlorite; soybeans; spraying; tissues; tobacco; Florida
Abstract:
... Italian dandelion (Cichorium intybus L.) is a leafy chicory plant grown as a fresh vegetable in salads. In August 2011, necrotic lesions were observed on leaves of about 20% of the Italian dandelion plants in an experimental field at the Tropical Research and Education Center (TREC) of the University of Florida in Homestead, FL. The lesions were dark brown with a yellow halo and most were irregula ...
DOI:
10.1094/PDIS-05-12-0502-PDN

16. First Report of Impatiens necrotic spot virus (INSV) Infecting Basil (Ocimum basilicum) in the United States

Author:
Poojari, S.; Naidu, R. A.
Source:
Plant disease 2013 v.97 no.6 pp. 850
ISSN:
0191-2917
Subject:
plant viruses; necrosis; Nicotiana benthamiana; basil; Ocimum basilicum; genes; summer; odors; greenhouses; plant diseases and disorders; Potyviridae; industry; nucleocapsid; clones; denaturation; viruses; Tomato spotted wilt orthotospovirus; leaves; container-grown plants; sequence analysis; host range; host plants; Emilia sonchifolia; inoculum; homeowners; reverse transcriptase polymerase chain reaction; nucleotide sequences; RNA; Impatiens necrotic spot tospovirus; India; Austria; Washington (state)
Abstract:
... Basil (Ocimum basilicum L.), a native of India belonging to the Lamiaceae family, is an aromatic herb with distinctive aroma, and several commercial varieties are used extensively for culinary and ornamental purposes. During the summer of 2011 and 2012, potted plants of basil in a commercial greenhouse in the Richland-Kennewick area of Washington State were observed showing foliar symptoms consist ...
DOI:
10.1094/PDIS-10-12-0937-PDN

17. First Report of Leaf Spot Caused by Corynespora cassiicola on Rose of Sharon in Korea

Author:
Seo, S. T.; Park, J. H.; Cho, S. E.; Shin, H. D.
Source:
Plant disease 2013 v.97 no.6 pp. 847
ISSN:
0191-2917
Subject:
Corynespora cassiicola; DNA primers; Hibiscus syriacus; agar; color; conidia; conidiophores; defoliation; flowering; flowers; fungi; genetic databases; greenhouses; herbaria; host range; internal transcribed spacers; leaf spot; leaves; pathogenicity; planting; polymerase chain reaction; ribosomal DNA; shrubs; trees; vigor; weather; Japan; South Korea
Abstract:
... Rose of Sharon, Hibiscus syriacus L., is a flowering shrub in the family Malvaceae planted as the national flower of South Korea. In September 2012, previously unknown leaf spots with premature defoliation were observed on dozens of Rose of Sharon plants growing in the shaded area in a park of Dongducheon, Korea. The same symptoms were found on Rose of Sharon in several localities of Korea in 2012 ...
DOI:
10.1094/PDIS-12-12-1118-PDN

18. First Report of Leaf Spot Caused by Corynespora cassiicola on Rose of Sharon in Korea

Author:
Seo, S. T.; Park, J. H.; Cho, S. E.; Shin, H. D.
Source:
Plant disease 2013 v.97 no.6 pp. 846
ISSN:
0191-2917
Subject:
Corynespora cassiicola; DNA primers; Hibiscus syriacus; agar; color; conidia; conidiophores; defoliation; flowering; flowers; fungi; genetic databases; greenhouses; herbaria; host range; internal transcribed spacers; leaf spot; leaves; pathogenicity; planting; polymerase chain reaction; ribosomal DNA; shrubs; trees; vigor; weather; Japan; South Korea
Abstract:
... Rose of Sharon, Hibiscus syriacus L., is a flowering shrub in the family Malvaceae planted as the national flower of South Korea. In September 2012, previously unknown leaf spots with premature defoliation were observed on dozens of Rose of Sharon plants growing in the shaded area in a park of Dongducheon, Korea. The same symptoms were found on Rose of Sharon in several localities of Korea in 2012 ...
DOI:
10.1094/PDIS-11-12-1065-PDN

19. First Report of Neofusicoccum australe (Botryosphaeria australis), as a Branch Dieback Pathogen of Avocado Trees in Chile

Author:
Auger, J.; Palma, F.; Pérez, I.; Esterio, M.
Source:
Plant disease 2013 v.97 no.6 pp. 842
ISSN:
0191-2917
Subject:
Botryosphaeria; Neofusicoccum; Persea americana; abiotic stress; agar; ambient temperature; autumn; avocados; bark; branches; canopy; cold season; conidia; conifer needles; containers; cork; dieback; drought; frost injury; fungi; germination; greenhouses; inoculum; internal transcribed spacers; irrigation water; kiwifruit; necrosis; orchards; pathogenicity; pathogens; peat; phylogeny; polymerase chain reaction; pycnidia; ribosomal DNA; sand; sequence analysis; trees; winter; wood; Chile
Abstract:
... Since 2007, Chilean avocado (Persea americana Mill.) orchards have been exposed to several abiotic stress conditions, namely frost damage and drought, due to three consecutive seasons of cold winters and shortage of irrigation water. At the same time, a severe disease resulting in tree dieback of cv. Hass, specifically, was observed in north-central Chile. Symptomatic trees exhibited abundant dead ...
DOI:
10.1094/PDIS-10-12-0951-PDN

20. First Report of Oregon Grape (Mahonia aquifolium) as an Alternate Host for the Wheat Stripe Rust Pathogen (Puccinia striiformis f. sp. tritici) Under Artificial Inoculation

Author:
Wang, M. N.; Chen, X. M.
Source:
Plant disease 2013 v.97 no.6 pp. 839
ISSN:
0191-2917
Subject:
Berberis vulgaris; Mahonia aquifolium; Puccinia striiformis f. tritici; aeciospores; basidiospores; cultivars; dew; field experimentation; grapes; greenhouses; growth chambers; homozygosity; inoculum; leaves; microsatellite repeats; nectar; ornamental plants; plant pathogenic fungi; plant pathology; progeny; pycniospores; races; seedlings; seeds; shrubs; soil; stripe rust; teliospores; temperature; urediniospores; virulence; wheat; Oregon; Washington (state)
Abstract:
... As the primary host of the stripe rust pathogen, Puccinia striiformis f. sp. tritici (Pst), wheat can be infected by both aeciospores and urediniospores, and later is the host that gives rise to urediniospores and teliospores. Barberry species (e.g., Berberis vulgaris) can be infected by basidiospores, produced from the teliospores of wheat plants, and later gives rise to pycniospores and aeciospo ...
DOI:
10.1094/PDIS-09-12-0821-PDN