scholarly journals Late Blight of Potato and Tomato

EDIS ◽  
2013 ◽  
Vol 2013 (1) ◽  
Author(s):  
Ryan Donahoo ◽  
Pamela Roberts
Keyword(s):  
Plant Pathology ◽  
Late Blight ◽  
Disease Development ◽  
Fact Sheet ◽  
Aggressive Disease ◽  
Late Blight Of Potato

Both potato and tomato are susceptible to late blight, an aggressive disease capable of rapidly destroying entire fields. The disease is distributed worldwide and occurs wherever tomatoes or potatoes are grown, and conditions favor disease development. This 4-page fact sheet was written by Ryan Donahoo and Pamela Roberts, and published by the UF Department of Plant Pathology, December 2012. http://edis.ifas.ufl.edu/pp301

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 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)

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)

2012–2016 On-Farm Evaluation of Fungicide Programs for Peanut Disease Control in Hamilton County, Florida

EDIS ◽  
2017 ◽  
Vol 2017 (4) ◽  
Author(s):  
Keith W. Wynn ◽  
Nicholas S. Dufault ◽  
Rebecca L. Barocco
Keyword(s):  
Plant Pathology ◽  
Disease Control ◽  
Leaf Spot ◽  
Fungal Disease ◽  
White Mold ◽  
Stem Rot ◽  
Late Leaf Spot ◽  
Fact Sheet ◽  
On Farm ◽  
Hamilton County

This ten-page fact sheet includes a summary of various fungicide spray programs for fungal disease control of early leaf spot, late leaf spot, and white mold/stem rot of peanut in 2012-2016 on-farm trials in Hamilton County. Written by K.W. Wynn, N.S. Dufault, and R.L. Barocco and published by the Plant Pathology Department.http://edis.ifas.ufl.edu/pp334

scholarly journals The effectiveness of a new biological product Spud on the basis of Bacillus subtilis in the cultivation of potatoes

2019 ◽  
pp. 8-14
Author(s):  
Marina Konstantinovna Derevyagina ◽  
Svetlana Viktorovna Vasilyeva ◽  
Grigory Leonidovich Belov ◽  
Vladimir Nikolaevich Zeyruk ◽  
Irina Igorevna Novikova
Keyword(s):  
Late Blight ◽  
Disease Development ◽  
Dry Rot ◽  
Potato Blight ◽  
Potato Plants ◽  
Moderate Disease ◽  
Rhizoctonia Disease ◽  
The Impact ◽  
Fungistatic Effect ◽  
New Crop

It is shown the efficiency of the application of preparative forms (dry and liquid) of Kartofin during the growing season 2016-2018 years against major diseases of potatoes and the impact on the growth and development of culture. Biopreparation possesses high fungistatic effect, protecting potato plants against rhizoctonia disease, potato blight and late blight under field conditions and tubers of the new crop from dry rot. In years of low and moderate disease development, the effectiveness of the studied Potato biopreparation on the Sante variety was at the level of the reference chemical variant, equally reducing the distribution and degree of disease development. In the years of epiphytotic disease development fungistatic effect of the biopreparation was inferior in efficiency to chemical fungicides, but had a significant protective effect compared to the control, reducing the distribution of rhizoctonia disease by 22.5%, potato blightby 20.7%, late blight by 12.8% on average. The results of tuberous analyses after harvesting showed a decrease in the percentage of tuber damage by dry rot in variants with Kartofin (1.7 and 1.4%). The yield of the standard potatoes after application of Kartofin was slightly higher than in the control – by  5.1–7.7%.

scholarly journals Powdery Mildew of Strawberries

EDIS ◽  
2013 ◽  
Vol 2013 (5) ◽  
Author(s):  
Natalia A. Peres ◽  
James C. Mertely
Keyword(s):  
Plant Pathology ◽  
Powdery Mildew ◽  
Primary Source ◽  
Fact Sheet ◽  
The World ◽  
Free Fields ◽  
Disease Free

Powdery mildew occurs in most areas of the world where strawberries are grown, infecting leaves, flowers, and fruit. Infected transplants are normally the primary source of inoculum for fruiting fields in Florida, but even disease-free fields can become infected by conidia blown in from neighboring fields. Fields with susceptible cultivars should be surveyed regularly for powdery mildew, especially early in the season. Usually, controlling foliar infection helps to prevent fruit infection. This 4-page fact sheet was written by N. A. Peres and J. C. Mertely, and published by the UF Department of Plant Pathology, May 2013. http://edis.ifas.ufl.edu/pp129

Efficacy of fungicides in controlling late blight of potato

2015 ◽  
Vol 26 (2) ◽  
pp. 103-108
Author(s):  
MM Anwar ◽  
A Parveen ◽  
MM Hossain ◽  
NU Mahamud ◽  
RK Roy
Keyword(s):  
Late Blight ◽  
Tuber Yield ◽  
Cultural Practices ◽  
Disease Incidence ◽  
Integrated Approach ◽  
Control Treatment ◽  
Commercial Potato ◽  
Late Blight Disease ◽  
Blight Disease ◽  
Late Blight Of Potato

Potato cultivars grown in Bangladesh have low levels of general resistance to late blight. As such, most commercial potato farmers rely on fungicide applications for control of Phytophthora infestans, the causal agent of late blight. Management of late blight of potato requires an integrated approach that includes rotation with non-hosts, resistant cultivars, cultural practices, and fungicides. The study on efficacy of some new fungicides against late blight disease of potato was conducted at ARS, Alamnagar Rangpur during rabi season 2010-2011 to select suitable fungicides against late blight of potato. Thirteen different fungicides were tested and all the tested fungicides showed significantly better performance over control. Considering percentage disease incidence T4,T6 and T12 showed better performance than all other treatment. In case of T4,T6 and T12 treatment disease reduction was more than 80 % over control. Significantly the highest tuber yield 25.5 t ha-1was obtained from T3  which was statistically similar to the yield of T2,T5 , T6, T9, T10, T11and T12  treatment whereas the lowest tuber  yield 14.5 t ha-1 was obtained from control treatment. Field experiment was conducted from 2010 to 2011 to investigate the comparative efficacy of the fungicides. In the field, applications of fungicide that preceded the largest incremental increase in disease incidence provided the best control of disease or increased yield.Progressive Agriculture 26 (2): 103-108, 2015

scholarly journals Characterization of Phytophthora infestans in Wisconsin from 1993 to 1995

Plant Disease ◽  
1998 ◽  
Vol 82 (4) ◽  
pp. 434-436 ◽  
Author(s):  
K. D. Marshall-Farrar ◽  
M. McGrath ◽  
R. V. James ◽  
W. R. Stevenson
Keyword(s):  
Solanum Tuberosum ◽  
Late Blight ◽  
Phytophthora Infestans ◽  
Mating Type ◽  
Production Problem ◽  
Significant Production ◽  
Allozyme Genotype ◽  
Late Blight Of Potato

Late blight of potato (Solanum tuberosum), caused by Phytophthora infestans, recently reappeared in Wisconsin and was a significant production problem in 1994. P. infestans isolates collected in Wisconsin from 1993 to 1995 were characterized for the following traits: mating type, sensitivity to metalaxyl, and allozyme genotype for Glucose-6-phosphate isomerase (Gpi). Characterization of these isolates revealed that a new, more aggressive population (A2 mating type, metalaxyl resistant, and Gpi genotype 100/111/122) is displacing the old population (A1 mating type, metalaxyl sensitive, and Gpi genotype 86/100) in Wisconsin.

Potato Agriculture, Late Blight Science, and the Molecularization of Plant Pathology

2008 ◽  
Vol 38 (2) ◽  
pp. 223-257 ◽  
Author(s):  
R. Steven Turner
Keyword(s):  
Biological Sciences ◽  
Plant Pathology ◽  
Late Blight ◽  
Plant Disease ◽  
Research Literature ◽  
Biological Science ◽  
Research Front ◽  
Causal Organism ◽  
And Control ◽  
Integrated Study

By the mid-1980s nucleic-acid based methods were penetrating the farthest reaches of biological science, triggering rivalries among practitioners, altering relationships among subfields, and transforming the research front. This article delivers a "bottom up" analysis of that transformation at work in one important area of biological science, plant pathology, by tracing the "molecularization" of efforts to understand and control one notorious plant disease——the late blight of potatoes. It mobilizes the research literature of late blight science as a tool through which to trace the changing typography of the research front from 1983 to 2003. During these years molecularization intensified the traditional fragmentation of the late blight research community, even as it dramatically integrated study of the causal organism into broader areas of biology. In these decades the pathogen responsible for late blight, the oomycete Phytophthora infestans, was discovered to be undergoing massive, frightening, and still largely unexplained genetic diversification——a circumstance that lends the episode examined here an urgency that reinforces its historiographical significance as a casestudy in the molecularization of the biological sciences.

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