scholarly journals Charcoal Rot of Strawberries Caused by Macrophomina phaseolina

EDIS ◽  
2007 ◽  
Vol 2007 (20) ◽  
Author(s):  
Natalia A. Peres ◽  
James C. Mertely
Keyword(s):  
Plant Pathology ◽  
Macrophomina Phaseolina ◽  
Causal Agent ◽  
Crown Rot ◽  
Disease Development ◽  
Charcoal Rot ◽  
Fact Sheet ◽  
Rot Disease ◽  
And Control

PP 242, a 2-page illustrated fact sheet by N.A. Peres and James C. Mertely, describes this new crown-rot disease in Florida -- causal agent and symptoms, disease development and spread, and control. Published by the UF Department of Plant Pathology, November 2007. PP242/PP161: Charcoal Rot of Strawberries Caused by Macrophomina phaseolina (ufl.edu)

scholarly journals Colletotrichum crown rot (anthracnose crown rot) of strawberries

EDIS ◽  
2007 ◽  
Vol 2007 (18) ◽  
Author(s):  
Steven MacKenzie ◽  
Natalia Peres
Keyword(s):  
Plant Pathology ◽  
Causal Agent ◽  
Crown Rot ◽  
Disease Development ◽  
Production Region ◽  
Fact Sheet ◽  
Serious Disease ◽  
And Control

PP-238, a 3-page illustrated fact sheet by Steven MacKenzie and Natalia Peres, describes this serious disease of strawberries in warm production region, its causal agent and symptoms, disease development and spread, and control. Includes a table of products labeled for control of colletotrichum crown rot. Published by the UF Department of Plant Pathology, June 2007. PP 238/PP156: Colletotrichum Crown Rot (Anthracnose Crown Rot) of Strawberries (ufl.edu)

Inoculation of Euphorbia lathyris with cotton strings infested with Macrophomina phaseolina, causal agent of charcoal rot disease

1991 ◽  
Vol 69 (3) ◽  
pp. 682-685
Author(s):  
Phyllis T. Himmel
Keyword(s):  
Key Words ◽  
Macrophomina Phaseolina ◽  
Causal Agent ◽  
Silica Sand ◽  
Optimal Conditions ◽  
Lesion Development ◽  
Charcoal Rot ◽  
Temperature Regimes ◽  
Rot Disease ◽  
Euphorbia Lathyris

Root infections caused by Macrophomina phaseolina were initiated under optimal conditions for the host, Euphorbia lathyris. Two-week-old Euphorbia lathyris seedlings were inoculated by tying roots with cotton strings infested with Macrophomina phaseolina. Ninety-three per cent of the inoculated roots developed infections after 2 weeks incubation in silica sand at 25 °C. By using infested strings, differences in the incidence of lesion development were detected when infected roots were subjected to differing temperature regimes. After approximately 6 weeks, there was a significantly [Formula: see text] greater incidence of lesion development at 34 °C than at 25 °C, whereas there was no difference in the incidence of infection. Aerial symptoms indicative of charcoal rot were not observed during the course of these studies. Key words: infested strings, charcoal rot.

scholarly journals Pestalotia Leaf Spot and Fruit Rot of Strawberry

EDIS ◽  
2020 ◽  
Vol 2020 (5) ◽  
Author(s):  
Juliana S. Baggio ◽  
Natalia A. Peres
Keyword(s):  
Plant Pathology ◽  
Leaf Spot ◽  
Fruit Production ◽  
Causal Agent ◽  
Fruit Rot ◽  
Disease Development ◽  
Plant Parts ◽  
Pathology Department ◽  
And Control

Pestalotiopsis-like fungi cause diseases on many different species of plants worldwide, including strawberry. The pathogen is not necessarily new to strawberry and was first reported causing fruit rot in Florida and Israel in the 1970s. However, during the 2018–19 and 2019–20 strawberry seasons, severe and unprecedented outbreaks were reported in Florida, characterized by symptoms on nearly all plant parts including roots, crowns, petioles, fruit, and leaves. This new 4-page publication of the UF/IFAS Plant Pathology Department describes the disease and its causal agent and briefly covers what is known about disease development and control practices. This document will provide valuable information to strawberry nursery and fruit production growers. Written by Juliana S. Baggio and Natalia A. Peres.https://edis.ifas.ufl.edu/pp357

scholarly journals Botrytis Fruit Rot or Gray Mold of Strawberry

EDIS ◽  
2006 ◽  
Vol 2006 (15) ◽  
Author(s):  
James C. Mertely ◽  
Natalia A. Peres
Keyword(s):  
Plant Pathology ◽  
Gray Mold ◽  
Fruit Rot ◽  
Disease Development ◽  
Fact Sheet ◽  
And Control

PP-230, a 4-page illustrated fact sheet by J. C. Mertely and N. A. Peres, describes the symptoms, disease development, and control of one of the most important diseases of strawberry worldwide. Includes table of fungicides used to control Botrytis fruit rot of strawberry in Florida. Published by the UF Department of Plant Pathology, July 2006. PP230/PP152: Botrytis Fruit Rot or Gray Mold of Strawberry (ufl.edu)

scholarly journals Crown Rot of Strawberry Caused by Macrophomina phaseolina in California

Plant Disease ◽  
2008 ◽  
Vol 92 (8) ◽  
pp. 1253-1253 ◽  
Author(s):  
S. T. Koike
Keyword(s):  
Disease Incidence ◽  
Pathogenic Fungi ◽  
Macrophomina Phaseolina ◽  
The United States ◽  
Crown Rot ◽  
Charcoal Rot ◽  
Crown Tissue ◽  
Original Field ◽  
Rot Disease ◽  
Eventual Collapse

In 2006 and 2007, severely diseased strawberry (Fragaria × ananassa) plants were observed in five commercial fields in southern California (Orange County). Disease generally occurred in discrete patches. Within such patches, disease incidence ranged from 10 to 75%. Symptoms consisted of wilting of foliage, drying and death of older leaves, plant stunting, and eventual collapse and death of plants. When plant crowns were dissected, internal vascular and cortex tissues were dark brown to orange brown. Fruiting bodies or other fungal structures were not observed. A fungus was consistently isolated from symptomatic crown tissue that had been surface sterilized and placed on acidified corn meal agar (LA-CMA). All isolates produced numerous, dark, irregularly shaped sclerotia that were 67 to 170 μm long and 44 to 133 μm wide. When isolates were grown on 1.5% water agar with dried and sterilized wheat straw, dark, ostiolate pycnidia and hyaline, single-celled, cylindrical conidia were produced. On the basis of these characters, all isolates were identified as Macrophomina phaseolina (1). The symptomatic plants tested negative for Colletotrichum spp., Phytophthora spp., Verticillium dahliae, and other pathogens. Inoculum for pathogenicity tests was produced by growing six isolates on CMA on which sterilized wood toothpicks were placed on the agar surface. After 1 week, toothpicks were removed and inserted 4 to 5 mm deep into the basal crown tissue of potted strawberry plants (cv. Camarosa) grown in soilless, peatmoss-based rooting medium. Ten plants were inoculated per isolate and one toothpick was inserted per plant. Ten control strawberry plants were treated by inserting one sterile toothpick into each crown. All plants were then grown in a shadehouse. After 2 weeks, all inoculated plants began to show wilting and decline of foliage. By 4 weeks, all inoculated plants had collapsed. Internal crown tissue was discolored and similar in appearance to the original field plants. M. phaseolina was isolated from all inoculated plants. Control plants did not exhibit any disease symptoms, and crown tissue was symptomless. The test was repeated and the results were similar. While M. phaseolina has been periodically associated with strawberry in California (3), to my knowledge, this is the first report of charcoal rot disease on commercial strawberry in California. Charcoal rot of strawberry has been reported in Egypt, France, India, Israel, and the United States (Florida and Illinois) (2,4). Similar to previous reports (2,4), many of the affected California fields were not preplant fumigated with methyl bromide + chloropicrin fumigants, and it is possible that under these changing production practices this pathogen may increase in importance in California. References: (1) P. Holliday and E. Punithalingam. No. 275 in: Descriptions of Pathogenic Fungi and Bacteria. CMI, Kew, Surrey, UK, 1970. (2) J. Mertely et al. Plant Dis.89:434, 2005. (3) S. Wilhelm. Plant Dis. Rep. 41:941, 1957. (4) A. Zveibil and S. Freeman. Plant Dis. 89:1014, 2005.

Effect of silicon compounds against Macrophomina phaseolina the causal agent of soybean charcoal rot disease

2020 ◽  
pp. 1-16 ◽  
Author(s):  
Waleed Zein El-Abdean ◽  
Kamal A. M. Abo-Elyousr ◽  
Mohamed H. A. Hassan ◽  
Rafik M. A. El-sharkawy
Keyword(s):  
Macrophomina Phaseolina ◽  
Causal Agent ◽  
Charcoal Rot ◽  
Silicon Compounds ◽  
Rot Disease

scholarly journals Black Spot of Rose

EDIS ◽  
2009 ◽  
Vol 2009 (4) ◽  
Author(s):  
Jozer Mangandi ◽  
Natalia A. Peres
Keyword(s):  
Plant Pathology ◽  
Geographic Distribution ◽  
Black Spot ◽  
Fungal Disease ◽  
Causal Agent ◽  
Fact Sheet ◽  
And Control

PP268, a 5-page illustrated fact sheet by Jozer Mangandi and Natalia A. Peres, describes this fungal disease that that affects nearly all rose cultivars worldwide — causal agent and geographic distribution, symptoms, and control. Published by the UF Department of Plant Pathology, May 2009. PP268/PP268: Black Spot of Rose (ufl.edu)

scholarly journals Charcoal Rot of Strawberries Caused by Macrophomina phaseolina

EDIS ◽  
2018 ◽  
Vol 2018 (1) ◽  
Author(s):  
Natalia A Peres ◽  
J. S. Baggio ◽  
J. C. Mertely
Keyword(s):  
Plant Pathology ◽  
Methyl Bromide ◽  
Macrophomina Phaseolina ◽  
Charcoal Rot ◽  
And Control

Charcoal rot is caused by Macrophomina phaseolina and has become more prevalent in Florida strawberry fields since methyl bromide was phased out. This 4-page publication describes the symptoms, development, and control of charcoal rot in strawberry fields. Written by N. A. Peres, J. S. Baggio, and J. C. Mertely and published by the UF/IFAS Department of Plant Pathology, February 2018. http://edis.ifas.ufl.edu/pp161

scholarly journals Citrus Diseases Exotic to Florida: Phaeoramularia Fruit and Leaf Spot (PFLS)

EDIS ◽  
2007 ◽  
Vol 2007 (11) ◽  
Author(s):  
Kuang-Ren Chung ◽  
Lavern W. Timmer
Keyword(s):  
Decision Making ◽  
Plant Pathology ◽  
Leaf Spot ◽  
Causal Agent ◽  
Fact Sheet ◽  
Citrus Diseases ◽  
Exotic Pathogens ◽  
Potential Risks ◽  
Florida Citrus ◽  
And Control

PP-234, a 3-page illustrated fact sheet by K.-R. Chung and L. W. Timmer, is part of the Citrus Diseases Exotic to Florida series, which aims to provide a basis for evaluating exotic pathogens that may pose potential risks to Florida citrus and create a decision-making framework to prevent their introduction and spread. It answers several questions, including why it is a concern, causal agent, affected cultivars, typical symptoms, how it is spread, and means of detection and control. Includes references. Published by the UF Department of Plant Pathology, February 2007.

scholarly journals Cercospora Leaf Spot of Rose

EDIS ◽  
2009 ◽  
Vol 2009 (4) ◽  
Author(s):  
Jozer Mangandi ◽  
Natalia A. Peres
Keyword(s):  
Plant Pathology ◽  
Geographic Distribution ◽  
Leaf Spot ◽  
Causal Agent ◽  
Cercospora Leaf Spot ◽  
Foliar Diseases ◽  
Fact Sheet ◽  
And Control

PP267, a 4-page illustrated fact sheet by Jozer Mangandi and Natalia A. Peres, describes this little-investigated disease that is one of the primary foliar diseases of roses in Florida — causal agent and geographic distribution, symptoms and control. Published by the UF Department of Plant Pathology, May 2009. PP267/PP267: Cercospora Leaf Spot of Rose (ufl.edu)

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