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Journal articles on the topic 'Brown spot'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Zumwalt, Jonathan R., and Sharon E. Jacob. "Growing Brown Spot." Journal of the Dermatology Nurses’ Association 7, no. 3 (2015): 167–68. http://dx.doi.org/10.1097/jdn.0000000000000124.

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2

Jacob, Sharon E. "Invaginating Brown Spot." Journal of the Dermatology Nurses’ Association 8, no. 5 (2016): 336–37. http://dx.doi.org/10.1097/jdn.0000000000000248.

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3

Singh, R. N. "Status of Brown Spot (BS) and Narrow Brown Leaf Spot (NBLS) in Eastern Uttar Pradesh (UP), India." International Rice Research Newsletter 13, no. 6 (1988): 35–36. https://doi.org/10.5281/zenodo.7146290.

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This article 'Status of Brown Spot (BS) and Narrow Brown Leaf Spot (NBLS) in Eastern Uttar Pradesh (UP), India' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in t

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4

Aishwarya, V., S. K. Manoranjitham, C. Gopalakrishnan, E. Somasundaram, and S. Geethanjali. "Isolation and Characterization of Rice Blast and Brown Spot Disease in Different Regions of Tamil Nadu, India." International Journal of Plant & Soil Science 35, no. 19 (2023): 975–85. http://dx.doi.org/10.9734/ijpss/2023/v35i193633.

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Rice (Oryza sativa L.) is the most important staple food crop cultivated in almost every district of Tamil Nadu. Among the rice fungal diseases, rice blast caused by Pyricularia oryzae and brown spot caused by Bipolaris oryzae are considered to be most potent threats causing major yield losses in Tamil Nadu. The present study aims in identification and characterization of rice blast and brown spot pathogen from different rice growing regions of Tamil Nadu. Three isolates of blast pathogen and five isolates of brown spot pathogen were collected and characterized based on colony morphology and c

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Lei, Mengying, Congyi Zhu, Luoye Li, Jiangshan Liu, Jiashang Liu, and Feng Huang. "Comparative Study of the Co-Occurring Alternaria and Colletotrichum Species in the Production of Citrus Leaf Spot." Journal of Fungi 9, no. 11 (2023): 1089. http://dx.doi.org/10.3390/jof9111089.

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Both of the two citrus diseases, Alternaria brown spot (ABS) and Anthracnose, caused by Alternaria and Colletotrichum spp., respectively, can produce leaf lesions which are hard to differentiate. These two diseases have been confused as causal agents of brown spot for over a decade in China. In this study, citrus leaves with or without brown spot were collected from Zhaoqing, Guangdong and Wanzhou, Chongqing, and were further used for the taxonomic and functional comparisons between the co-occurring Alternaria and Colletotrichum species. In the amplicon sequencing, the average relative abundan

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Panther, David J., and Sharon E. Jacob. "Brown Spot on the Back." Journal of the Dermatology Nurses’ Association 7, no. 2 (2015): 109–10. http://dx.doi.org/10.1097/jdn.0000000000000118.

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7

Upadhyay, Santosh Kumar, and Avadhesh Kumar. "Early-Stage Brown Spot Disease Recognition in Paddy Using Image Processing and Deep Learning Techniques." Traitement du Signal 38, no. 6 (2021): 1755–66. http://dx.doi.org/10.18280/ts.380619.

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India is an agricultural country. Paddy is the main crop here on which the livelihood of millions of people depends. Brown spot disease caused by fungus is the most predominant infection that appears as oval and round lesions on the paddy leaves. If not addressed on time, it might result in serious crop loss. Pesticide use for plant disease treatment should be limited because it raises costs and pollutes the environment. Usage of pesticide and crop loss both can be minimized if we recognize the disease in a timely manner. Our aim is to develop a simple, fast, and effective deep learning struct

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8

Swett, Cassandra L., Tyler Bourret, and W. Douglas Gubler. "Characterizing the Brown Spot Pathosystem in Late-Harvest Table Grapes (Vitis vinifera L.) in the California Central Valley." Plant Disease 100, no. 11 (2016): 2204–10. http://dx.doi.org/10.1094/pdis-11-15-1343-re.

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Brown spot, caused by Cladosporium spp., is becoming a problematic postharvest disease of late season table grape (Vitis vinifera) in the California central valley, and management is hindered by knowledge gaps in disease etiology and epidemiology. Brown spot is herein described as a pre- and postharvest dry rot typified by an external brown to black spot or black mycelium which encases the placenta. Isolates in the Cladosporium herbarum and C. cladosporioides species complexes were recovered from 85 and 5% of brown-spot affected berries, respectively. Five isolates in the C. herbarum species c

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9

Muthusamy, S., V. Mariappan, V. Narasimhan, M. Muthusamy, and S. Eswaramoorthy. "Effect of Micronutrient on Rice Brown Spot (Bs) Incidence." International Rice Research Newsletter 13, no. 6 (1988): 32–33. https://doi.org/10.5281/zenodo.7146280.

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This article 'Effect of Micronutrient on Rice Brown Spot (Bs) Incidence' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in the world.

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10

Sultana, N., C. Mondal, MM Hossain, MAR Khokon, and MR Islam. "Effect of fermented tea extract in controlling brown spot and narrow brown spot of rice." Bangladesh Journal of Agricultural Research 42, no. 4 (2018): 621–29. http://dx.doi.org/10.3329/bjar.v42i4.35790.

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Compost tea, Tilt 250 EC and Bavistin 50 WP were evaluated for controlling brown spot and narrow brown spot diseases of rice in the field laboratory of the Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh during the period from July to December, 2011. Significant effect of different treatments was observed on the severity of brown spot and narrow brown spot of rice as compared to control. The results evidently showed the lowest brown spot severity in T4 (Tilt 250 EC applied as foliar spray) which was statistically similar to T3 (Compost tea as soil drenching) while

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11

Shamshad, Areeqa, Muhammad Rashid, Amjad Hameed, and Hafiz Muhammad Imran Arshad. "Identification of biochemical indices for brown spot (Bipolaris oryzae) disease resistance in rice mutants and hybrids." PLOS ONE 19, no. 4 (2024): e0300760. http://dx.doi.org/10.1371/journal.pone.0300760.

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Brown spot caused by Bipolaris oryzae is a major damaging fungal disease of rice which can decrease the yield and value of produce due to grain discoloration. The objectives of the current study were to investigate and understand the biochemical indices of brown spot disease resistance in rice. A total of 108 genotypes (mutant and hybrid) along with Super Basmati and parent RICF-160 were evaluated against brown spot disease. The genotypes exhibiting resistant and susceptible responses to brown spot disease according to the IRRI standard disease rating scale were screened and selected. To study

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12

Batzer, Jean C., Yuba R. Kandel, Carl A. Bradley, et al. "Effect of Seed Treatment on Early Season Brown Spot Caused by Septoria glycines of Soybean." Plant Health Progress 17, no. 4 (2016): 223–28. http://dx.doi.org/10.1094/php-rs-16-0035.

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Early season brown spot caused by Septoria glycines was compared in Illinois, Indiana, Iowa, Michigan, and Ontario, Canada, soybean fields planted with differing commercial seed treatments. Seed treatments that included fluopyram significantly reduced brown spot (P < 0.001). A greenhouse mist chamber experiment revealed that fluopyram seed treatment reduced the Area Under Disease Progress Curve of brown spot over a 6-week period (P < 0.001). Brown spot severity was unaffected by plant age at inoculation for the control treatment without fluopyram (P = 0.911); however, severity increased

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13

Hossain, I., P. Dey, and MZ Hossain. "Efficacy of Bion, Amistar and Tilt in controlling brown spot and narrow brown spot of rice cv. BR11 (Mukta)." Journal of the Bangladesh Agricultural University 9, no. 2 (2012): 201–4. http://dx.doi.org/10.3329/jbau.v9i2.10986.

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Efficacy of Bion (benzothiodiazole), Amistar (azoxystrobin) and Tilt (propiconazole) was evaluated for controlling Brown spot and Narrow brown spot of rice cv. BR11 (Mukta). Bion, Amistar and Tilt @ 50 mg/L, 1 ml/L and 1 ml/L, respectively were sprayed at tillering and ear initiation stages that resulted in marked reduction of Brown spot and Narrow brown spot. Bion, Amistar and Tilt significantly increased number of grains/ear and number of healthy grains/ear by reducing number of diseased grains/ear. Bion, Amistar and Tilt resulted in 25.87, 32.17 and 26.76% higher grain yield, respectively o

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14

Huseynova, Lala A. "Alternariosis or brown spot of pomegranate bushes in the western part of Azerbaijan." Current Agronomy 1, no. 1 (2024): 61–68. http://dx.doi.org/10.2478/cag-2024-0007.

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Abstract Alternariosis or brown spot (Alternaria alternata (Fr.) Keissl.) is a widespread disease of pomegranate bushes in Azerbaijan. The disease occurs mainly in the western part of the country. Alternariosis or brown spot on pomegranate bushes (Alternaria alternata (Fr.) Keissl.) is found mainly on leaves and fruits. On ripening pomegranate fruits, the lesion begins with small brown or black spots that increase in size and become round or oval. The causative agents of alternariosis or brown spot on pomegranate bushes (Alternaria alternata (Fr.) Keissl.) are imperfect fungi of the genus Alte

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15

Baloch, K. K., and J. M. Bonman. "Rice Seedling Resistance to Brown Spot (Bs)." International Rice Research Newsletter 10, no. 5 (1985): 8–9. https://doi.org/10.5281/zenodo.7099822.

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This article 'Rice Seedling Resistance to Brown Spot (Bs)' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in the world.

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16

David, Kamei, and U. Singh Archana. "Development of a Disease Prediction Model for Brown Spot Disease severity of Rice based on Weather Variable Parameters." International Journal of Environmental & Agriculture Research 7, no. 10 (2021): 01–06. https://doi.org/10.5281/zenodo.5624332.

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<strong>Abstract</strong><strong>—</strong> The correlation studies of brown spot disease incidence of rice with weather factors found that during the first year of studies (2014-15) the disease incidence was significant and negatively correlated with temperature (Tmax.=-.98), (Tmin.=-.93) and wind speed (WS=-.71) whereas others weather factors RHmax, RHmin., Rainfall (RF) were non significant and positively correlated with brown spot disease severity. Therefore, Tmax., Tmin. and Wind speeds are the key weather factors that influenced the brown spot disease severity of Rice. The multiple

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17

Cruz, Christian D., Dennis Mills, Pierce A. Paul, and Anne E. Dorrance. "Impact of Brown Spot Caused by Septoria glycines on Soybean in Ohio." Plant Disease 94, no. 7 (2010): 820–26. http://dx.doi.org/10.1094/pdis-94-7-0820.

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Brown spot, caused by Septoria glycines, is the most common foliar disease of soybean in Ohio, but its economic impact has not been assessed on modern cultivars. Therefore, the objectives of this study were to (i) evaluate the effect of S. glycines on soybean yield and (ii) evaluate the efficacy of strobilurin- and triazole-based fungicides on the control of brown spot. Yield loss associated with S. glycines was determined using weekly applications of chlorothalonil. The efficacy of azoxystrobin, pyraclostrobin, tebuconazole, and flutriafol alone and in combinations were also assessed using ap

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18

Vanlalruata, l. H. Jonathan, and Hijam Meronbala Devi. "Survey and Identification of Fungal Plant Diseases on Major Crops in Lunglei District of Mizoram." Environment and Ecology 42, no. 4A (2024): 1688–98. http://dx.doi.org/10.60151/envec/khro7188.

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A survey work on fungal diseases of major crops in Lunglei district, Mizoram was undertaken in farmers’ field during kharif season of 2021, using visual assessment method, in which pictorial representation of the host plant with known and graded amount of disease are compared with disease leaves to allow estimation of disease incidence, by measuring intensity of the pathogen with the help of disease grading scales. The disease samples collected from the farmers’ field were brought in the laboratory where identification of pathogen was done based on their morphological characters under the micr

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19

Alex, Wenda, Permana Inggih, Yusmar, and Noviana Kurniawati Nunik. "Identification of paddy leaf diseases based on texture analysis of Blobs and color segmentation." TELKOMNIKA Telecommunication, Computing, Electronics and Control 18, no. 4 (2020): 2018–26. https://doi.org/10.12928/TELKOMNIKA.v18i4.14614.

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There are three types of paddy leaf diseases that have similar symptoms, making it difficult for farmers to identify them, namely blast, brown-spot, and narrow brown-spot. This study aims to identification paddy plant diseases based on texture analysis of Blobs and color segmentation. Blobs analysis is used to get the number of objects, area and perimeter. Color segmentation is used to find out some color parameters of paddy leaf disease such as the color of the lesion boundary, the color of the spot of the lesion, and the color of the paddy leaf lesion. To get the best results, four methods h

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20

Elshenawy, Mostafa Mamdouh, Walid Hassan Elgamal, Galal Bakr Anis, and Fatma Awad. "Combined Genetic Analysis of Brown Spot (Helminthosporium oryzae) Disease for Developed Hybrid Combinations and their Parental Lines in Hybrid Rice." Sustainable Food Production 1 (March 2018): 37–48. http://dx.doi.org/10.18052/www.scipress.com/sfp.1.37.

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This experiment was carried out at the Farm of Rice Research and Training Center, Sakha, Kafrelsheikh, Egypt during three rice grown seasons from 2014-2016. Three cytoplasmic male sterile lines, two wild abortive type (WA); IR69625A, IR70368A and one (K-type) K17A as females were tested with seven rice genotypes Giza 178, Giza 179, Giza 181,Giza 182, Sakha 105, GZ 6296-12-1-2-1-1 and HR195R as testers using line x tester model of hybridization. The parental lines and their resulting (21F1crosses) were evaluated in Randomized Complete Block Design (RCBD) experiment having three replications dur

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21

Prasad, Rahul Ravneel, Mohseen Riaz Ud Dean, Bradley Alungo, and Vinal Vishal Chand. "Prevalence and Incidence of Cassava (Manihot esculenta) Brown Leaf Spot Disease Caused by Cercospora heningsii in Macuata Province, Vanua Levu, Fiji." Journal of Agricultural Science 13, no. 8 (2021): 91. http://dx.doi.org/10.5539/jas.v13n8p91.

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Cassava (Manihot esculenta Crantz) is a crop of many values in the tropical and subtropical regions of the globe. In Fiji, cassava is cultivated on vast acres of land but, the yield obtained is relatively lower because of many constraints, including the prevalence of diseases caused by the different pathogens. Among various pathogens responsible for a lower yield, the cassava brown leaf spot disease caused by Cercospora heningsii is responsible for causing enormous annual losses of cassava in tropical and subtropical regions. Because there is very little information regarding the association o

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22

Mohd Anuar, I. S., K. A. Ku Sulong, H. Abdul Ghani, and M. Z. Wahab. "Alginate encapsulation of Trichoderma harzianum against brown spot disease on rice (Oryzae sativa) in vivo assays." Food Research 4, S5 (2020): 138–41. http://dx.doi.org/10.26656/fr.2017.4(s5).006.

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Bipolaris oryzae causes brown spot disease which is one of the most devastating diseases in rice. Nowadays, biological methods are effective controls which need to be developed in order to use less chemical control. Therefore, the objectives of the present study were to characterize the B. oryzae as a biocontrol agent and to measure the performance of encapsulated T. harzianum in controlling brown spot disease. Bipolaris oryzae was characterized based on morphological characteristics and alginate encapsulation was produced from conidial suspension by adding sodium alginate and calcium chloride

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23

Hardebeck, Glenn A., Ronald F. Turco, Richard Latin, and Zachary J. Reicher. "Application of Pseudomonas aureofaciens Tx-1 through Irrigation for Control of Dollar Spot and Brown Patch on Fairway-height Turf." HortScience 39, no. 7 (2004): 1750–53. http://dx.doi.org/10.21273/hortsci.39.7.1750.

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Pseudomonas aureofaciens strain Tx-1 is suggested as a biological control for Sclerotinia homoeocarpa (F.T. Bennett) and brown patch (Rhizoctonia solani Kuhn) on golf courses. To overcome application difficulties, a field bioreactor is used to grow Tx-1 daily and then inject into nightly irrigation on the golf course. Though Tx-1 shows some promise for disease control in vitro, it is relatively untested under field conditions. We conducted three field experiments to 1) evaluate the efficacy Tx-1 when applied through an irrigation system for the control of dollar spot and brown patch; 2) determ

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24

Li, Rui, Lu Fan, Jingdong Lin, Mingyang Li, Daofeng Liu, and Shunzhao Sui. "In Vitro Mutagenesis followed by Polymorphism Detection Using Start Codon Targeted Markers to Engineer Brown Spot Resistance in Kalanchoe." Journal of the American Society for Horticultural Science 144, no. 3 (2019): 193–200. http://dx.doi.org/10.21273/jashs04571-18.

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Kalanchoe (Kalanchoe blossfeldiana) is a common potted flower that is popular throughout the world. Brown spot (caused by Stemphylium lycopersici) is one of the common foliage diseases in kalanchoe. This disease tends to infect leaves of kalanchoe plants in hot and humid environments, reducing their aesthetic value. The current investigation aimed to generate mutations resistant to brown spot in ‘Mary’ kalanchoe through chemical mutagenesis followed by molecular marker identification. Putative mutants were developed by treating embryogenic calluses with ethyl methanesulfonate (EMS) at median l

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25

Zongo, Adama, Abdourasmane K. Konate, Antoine Barro, Soumana Kone, Arnaud M. N. Ouedraogo, and Mahamadou Sawadogo. "Characterization of New Rice Genotypes for Blast and Brown Spot Disease Resistance and Iron-Toxicity Tolerance in Burkina Faso." International Journal of Phytopathology 12, no. 3 (2023): 303–12. http://dx.doi.org/10.33687/phytopath.012.03.4868.

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Rice production in Burkina Faso is threatened by a number of abiotic and biotic constraints, including iron toxicity and main fungal diseases that limit the potential of cultivated varieties. The general objective of this study was to evaluate the performance of new rice genotypes against main biotic and abiotic stresses. A total of 08 genotypes were tested allowed a Fisher block design with 03 replicates. Assessments focused on severity of iron toxicity, the severity and incidence of blast and brown spot disease and agro-morphological traits. The GRS IR-6-S3-Y1-D genotype was the most sensiti

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26

Alam, Md Mahbubul, Muhammad Abdus Sobahan, Nasima Akter, and Ismail Hossain. "An Investigation on Disease Incidence, Grain Yield and Quality of BRRI Dhan29 in Bangladesh." International Journal of Applied Sciences and Biotechnology 4, no. 3 (2016): 311–17. http://dx.doi.org/10.3126/ijasbt.v4i3.15151.

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Rice crops are susceptible to disease, which causes large yield losses in many Asian countries. The influence of disease incidence and severity on grain yield and quality of the rice (Oryza sativa L., cv. BRRI dhan29) was investigated in three different locations of Chief Farm Superintendent’s (CFS) farm viz. Near Weather Yard (location-1), Near Agronomy Farm (location-2) and Near CFS farm office (location-3), Bangladesh Agricultural University (BAU), mymensingh, Bangladesh during boro season. In location-1, both brown spot and sheath blight were recorded whereas in location-2 and in location-

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27

Tonkonozhenko, A. A., I. V. Shevchuk, S. I. Gradchenko, and O. F. Denysiuk. "Technical efficiency of the use of biological products against the main strawberry (Fragaria ananassa L.) diseases." Horticulture: Interdepartment Subject Scientific Collection, no. 79 (2024): 135–39. https://doi.org/10.35205/0558-1125-2024-79-135-139.

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The dominant and most common diseases in the right-bank part of the Western Lisosteppe of Ukraine in strawberry plantations are white and brown leaf spot and damage to berries by gray rot. Observations of the spread and development of diseases showed that the first signs of white and brown leaf spot of strawberries appear at the beginning of the third decade of May. Given the significant drought in the spring-summer period during the active vegetation of plants, the development of the main diseases was moderate, reaching a maximum level in the third decade of July: brown spot - 3.9 % (with lea

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28

Loughman, R., and MW Sweetingham. "Control of Pleiochaeta setosa diseases of lupin using seed and fertiliser applied fungicides." Australian Journal of Experimental Agriculture 31, no. 4 (1991): 493. http://dx.doi.org/10.1071/ea9910493.

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Control of Pleiochaeta setosa diseases of lupins was compared in 8 field experiments using Rovral (iprodione) and Sumisclex (procymidone) as either seed dressing or fertiliser-applied treatments. Seed-dressing application was more effective than fertiliser application for control of brown spot. Rovral and Sumisclex provided very similar control of brown spot in most comparisons, but Sumisclex occasionally provided significantly better control. Pleiochaeta root rot was controlled by Rovral seed treatment at 1 location and by all Rovral and Sumisclex treatments at a second location. When used at

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29

Liasaputri, Risanti Eka, A. Marthin Kalay, and Hanry R. D. Amanupunyo. "Effects of Soaking Rice Seeds with Biofertilizers on Brown Spot Disease Drechslera oryzae and Sprout Growth." Agrologia 12, no. 1 (2023): 9. http://dx.doi.org/10.30598/ajibt.v12i1.1804.

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Rice (Oryza sativa L.) is a staple food crop for the majority of the population in Indonesia. In rice cultivation, brown spot disease is often damaged by the fungus Drechslera oryzae. This study aims to examine the effect of applying biofertilizers on brown spot disease and growth of rice sprouts. The treatments tried were Bion-up, KIBRT, Azoto-Tricho, biofertilizers and propineb fungicide as a comparison. The experimental design used a completely randomized design with four replications. The observed variables were disease intensity, shoot height, root length, and fresh weight of sprouts. The

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Puig, Mireia, Concepció Moragrega, Lídia Ruz, Emilio Montesinos, and Isidre Llorente. "Controlling Brown Spot of Pear by a Synthetic Antimicrobial Peptide Under Field Conditions." Plant Disease 99, no. 12 (2015): 1816–22. http://dx.doi.org/10.1094/pdis-03-15-0250-re.

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Brown spot of pear, caused by Stemphylium vesicarium, is a fungal disease of increasing importance in several pear-growing areas of Europe. Disease control measures include the application of fungicides and sanitation methods. Antimicrobial peptides may be a complement or alternative to conventional fungicides used to manage brown spot disease. In a previous study, the synthetic peptide BP15 showed postinfection fungicidal activity against S. vesicarium in in vitro and detached-leaf assays. In the present study, the efficacy of BP15 (KKLFKKILKVL-NH2) in controlling brown spot of pear was evalu

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Ceponis, M. J., J. M. Wells, and R. A. Cappellini. "Bacterial Brown Spot of ‘Honey Dew’ Melons." HortScience 20, no. 2 (1985): 302–3. http://dx.doi.org/10.21273/hortsci.20.2.302.

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Abstract A newly described bacterial disease of ‘Honey Dew’ melons is caused by a strain of Erwinia herbicola. The disease first was found on ‘Honey Dew’ melons imported from Ecuador, and subsequently on melons from Guatemala, Venezuela, and California. The disease produces firm, tan to brown, slowly developing lesions that principally affect the rind tissue. The bacterium isolated from a California ‘Honey Dew’ melon was much more virulent and potentially more damaging than isolates from the other sources. We propose bacterial brown spot as the name of the disease.

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32

Probst, Ron. "A spot of luck for brown dwarfs." Nature 339, no. 6219 (1989): 12–13. http://dx.doi.org/10.1038/339012a0.

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33

Sudhakar, Chavan Sanket, Kartik Sawant, Aspak, et al. "Brown spot: An embryonic disease of rice." Agrica 11, no. 2 (2022): 172–81. http://dx.doi.org/10.5958/2394-448x.2022.00023.2.

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Dooh, Jules P. N., Djile Bouba, Djongnang Gabriel, et al. "Brown Spot and Stalk Rot Diseases of Maize (Zea Mays) and Susceptibility of Two Varieties to Physoderma Maydis in Far North Cameroon." International Journal of Phytopathology 10, no. 1 (2021): 19–28. http://dx.doi.org/10.33687/phytopath.010.01.3505.

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Corn (Zea mays L.) is one of the most widely grown cereals in the world. However, in Cameroon, particularly in the Far North Region, yields remain low because of diseases increasing due to farming practices and climate change. This work aimed to characterize Brown Spot and Stalk Rot of corn and evaluate the susceptibility of two maize varieties to Physoderma maydis in field conditions. Two maize varieties, CMS9015, and CMS8704 were evaluated in a randomized block design. Disease symptoms were observed and described using identification keys. Microscopic characteristics of pathogens were perfor

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Pereira, Ricardo Borges, Gilvaine Ciavareli Lucas, Fabiano José Perina, Pedro Martins Ribeiro Júnior, and Eduardo Alves. "Citronella essential oil in the control and activation of coffee plants defense response against rust and brown eye spot." Ciência e Agrotecnologia 36, no. 4 (2012): 383–90. http://dx.doi.org/10.1590/s1413-70542012000400001.

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The rust and brown eye spot are the main coffee diseases. The losses are due to intense defoliation of plants, which has reduced its production and longevity. The brown eye spot also occurs in fruits, with negative effects on the beverage quality. Some essential oils have presented promising results in the control of plant diseases, as an alternative to the use of fungicides. The objective of this study was to evaluate citronella essential oil in the control of rust and brown eye spot and in the activation of coffee plants defense responses. Twelve-month-old plants were sprayed with citronella

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36

Luo, Huan, Myung Soo Park, and Jun Myoung Yu. "Morphology and Molecular Characteristics of Alternaria sonchi Causing Brown Leaf Spot on Sonchus asper in Korea." Research in Plant Disease 27, no. 3 (2021): 107–14. http://dx.doi.org/10.5423/rpd.2021.27.3.107.

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During a disease survey on weeds and minor cultivated crops in Korea, a brown leaf spot disease was observed on Sonchus asper. Leaf lesions were round or irregular in shape, and grayish brown to brown with a purple margin. In severe infection, lesions enlarged and coalesced, resulting in blighting of the leaves. The isolates from these leaf lesions were identified as Alternaira sonchi based on morphological characteristics and phylogenetic analyses of Internal transcribed spacer region, Alternaria allergen a1, glyceraldehyde 3-phosphate dehydrogenase, RNA polymerase II, and translation elongat

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Dorrance, A. E., C. Cruz, D. Mills, et al. "Effects of Foliar Fungicide and Insecticide Applications on Soybean in Ohio." Plant Health Progress 11, no. 1 (2010): 31. http://dx.doi.org/10.1094/php-2010-0122-01-rs.

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Mid-season applications of Quadris with and without Warrior insecticide were evaluated in 2004 and 2005, and Headline, Folicur, Domark, or Headline plus Folicur were evaluated in 2006, 2007, and 2008 in 37 farm scale studies in Ohio. Producer cooperators selected fields, applied treatments at growth stage R3 and harvested fields. Each trial was rated at growth stage R5 or R6 for incidence and severity of brown spot and frogeye leaf spot. Aphids and foliar disease incidence was low in 2004. Soybean aphids were counted at stage R5 in 2005. Brown spot severity was reduced significantly by Headlin

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Chitolina, Gabriel M., Geraldo J. Silva-Junior, Eduardo Feichtenberger, Rosana G. Pereira, and Lilian Amorim. "First Report on Quinone Outside Inhibitor Resistance of Alternaria alternata Causing Alternaria Brown Spot in Tangerines in São Paulo, Brazil." Plant Health Progress 20, no. 2 (2019): 94. http://dx.doi.org/10.1094/php-12-18-0079-br.

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Field resistance to quinone outside inhibitor (QoI) fungicides in Alternaria alternata causing Alternaria brown spot of mandarins was reported by growers in Brazil in 2017. Conidial germination tests were performed, and isolates showed effective concentration to inhibit 50% of conidia germination (EC50) to be over 100 ppm. This is the first report of QoI resistance in A. alternata causing Alternaria brown spot in the state of São Paulo, Brazil.

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Zhu, Yuhang, Kaikai Yao, Miaomiao Ma, et al. "Occurrence Regionalization of Kiwifruit Brown Spot in Sichuan." Journal of Fungi 9, no. 9 (2023): 899. http://dx.doi.org/10.3390/jof9090899.

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Kiwifruit brown spot caused by Corynespora cassiicola is the most significant fungal disease in Sichuan, resulting in premature defoliation, which had a significant impact on yield and fruit quality. The objective of the study was to determine the occurrence regularity and suitability of kiwifruit brown spot in Sichuan. The occurrence of the disease in the main producing region was continuously monitored, the maximum entropy (MaxEnt) model was used to predict its potential distribution, and the key environmental variables were identified using the jackknife method. The results indicated that k

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Loebler, Marcella, Claudia Sánchez, Elisabete Muchagato Maurício, et al. "Potential Application of Propolis Extracts to Control the Growth of Stemphylium vesicarium in “Rocha” Pear." Applied Sciences 10, no. 6 (2020): 1990. http://dx.doi.org/10.3390/app10061990.

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Stemphylium vesicarium (Wallr.) E. G. Simmons is the pathogen responsible of brown spot disease in pear and has become one of the main concerns for European pear producers. In Portugal, S. vesicarium is responsible for significant yield reduction and economic losses in “Rocha” pear (Pyrus communis L. cv Rocha) production. Considering the antimicrobial potential of propolis, the high incidence of brown spot in pears and the emergence of fungicides resistance in S. vesicarium, this study aimed to evaluate the potential of Portuguese propolis as an alternative strategy to control brown spot disea

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Jha, Banshidhar, Priyanka Jaiswal, Rajesh Kumar, et al. "Studies of genetic correlation and path coefficient analysis between resistance to brown spot disease and yield related traits in rice (Oryza sativa L.)." Environment Conservation Journal 23, no. 3 (2022): 361–66. http://dx.doi.org/10.36953/ecj.10252240.

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Brown spot disease in rice is caused by Cochliobolus miyabeanus (Anamorph: Bipolaris oryzae (Breda de Haan) Shoemaker, 1959 (Synonyms: Helminthosporium oryzae). It causes significant losses by affecting both economic yield and grain quality. Though, it is a minor disease in most of the parts of the world but the historical famines like Krishna Godaveri Delta famine and Bengal famines and huge crop losses in a number of incidences as in Guyana and Nigeria renders it as a potential threat to rice crop and adverted the requirement of efficient, sustainable and economical strategies to cope with t

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Nargave, Subhash, Jayesh Gehlot, Rachel Buri, Mohit Jakhar, Jamu Singh Damor, and Subrat Jain. "Biological and Chemical Management Strategy to Control Brown Spot Disease in Rice Caused by Bipolaris oryzae." International Journal of Plant & Soil Science 35, no. 23 (2023): 531–37. http://dx.doi.org/10.9734/ijpss/2023/v35i234270.

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The main objective of this study was to assess the effectiveness of various fungicides in managing rice brown spot, a common fungal disease in India that can reduce crop yield and seed quality. During 2020-21 crop seasons, a research project was conducted in the experimental plot of the Department of Plant Pathology at the College of Agriculture in Rewa, Madhya Pradesh, India. Different treatments involving fungicide application at various rice growth stages were implemented. The results showed that all treatments involving fungicides significantly reduced the incidence of rice brown spot in-v

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"Brown spot." PlantwisePlus Knowledge Bank Factsheets for (September 27, 2020). http://dx.doi.org/10.1079/pwkb.20167800194.

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Li, W. Y. "Rice brown spot." PlantwisePlus Knowledge Bank Factsheets for (September 27, 2020). http://dx.doi.org/10.1079/pwkb.20197800303.

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"Rice-brown spot." PlantwisePlus Knowledge Bank Pest Management (January 2019). http://dx.doi.org/10.1079/pwkb.20157800545.

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"Alternaria longipes (brown spot)." CABI Compendium CABI Compendium (January 7, 2022). http://dx.doi.org/10.1079/cabicompendium.4514.

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This datasheet on Alternaria longipes covers Identity, Overview, Distribution, Dispersal, Hosts/Species Affected, Diagnosis, Biology & Ecology, Seedborne Aspects, Impacts, Prevention/Control, Further Information.

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"Alternaria longipes (brown spot)." PlantwisePlus Knowledge Bank Species Pages (January 7, 2022). http://dx.doi.org/10.1079/pwkb.species.4514.

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"Rice - Brown Spot-Cambodia." PlantwisePlus Knowledge Bank Pest Management (January 2014). http://dx.doi.org/10.1079/pwkb.20147801488.

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"Brown spot on rice." PlantwisePlus Knowledge Bank Factsheets for (September 27, 2020). http://dx.doi.org/10.1079/pwkb.20147800007.

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Le Mimh Nam, Le Mimh Nam, Hoang Thi Thuy Hoang Thi Thuy, and Bui Tien Dung Bui Tien Dung. "Brown spot on rice." PlantwisePlus Knowledge Bank Factsheets for (September 27, 2020). http://dx.doi.org/10.1079/pwkb.20167800102.

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