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Search results for 'Grapes'

  • Best way to control powdery mildew on grape plant 1

    By Darren Chan

    Published Oct 22, 2018

    If you grow grapes,you may reaching to see a white powdery substance on the grape leaves. It’s the grape powdery mildew. Especally in main grapevine growing area such as Americas,Europe and Australia. The disease seems as a whitish-gray powdery coating on the leaves or fruit caused by plant mycelium and conidia on the surface of the plant... If leaf cover is thick, expose developing grapes and improve air circulation by removing leaves at the bases of the stems...

    Categories: Agribusiness, Canola, Organic

    Best way to control powdery mildew on grape plant

    By Darren Chan

    Published Oct 22, 2018

    If you grow grapes,you may reaching to see a white powdery substance on the grape leaves. It’s the grape powdery mildew. Especally in main grapevine growing area such as Americas,Europe and Australia. The disease seems as a whitish-gray powdery coating on the leaves or fruit caused by plant mycelium and conidia on the surface of the plant... If leaf cover is thick, expose developing grapes and improve air circulation by removing leaves at the bases of the stems...

    Categories: Agribusiness, Canola, Organic

    Type of Organic Fertilizer

    By Darren Chan

    Published Dec 17, 2019

    What's Organic FertilizerNowadays, as the level of modernization of agriculture is getting higher and higher, sustainable agriculture is an important global issue. Organic food is receiving more and more attention. According to the trend, organic fertilizers are becoming the first choice for many people. Widely used for vegetables (tomatoes, lettuce, cucumber), fruits (strawberries, grapes, citrus), Cash crops (grass, flowers, cannabis)Organic Fertilizer DefinitionOrganic fertilizer is also called “farm manure. ” The definition of organic fertilizer is simple...

    Categories: Agribusiness, Organic, Wheat

    3 Most Troubling Grapevine Diseases

    By Darren Chan

    Published Dec 11, 2018

    There are more than 30 known grape diseases. Among them, sour rot, anthrax and powdery mildew are the most common diseases... Symptom There are rotten grapes, if it is bagged grapes, under the bags there is a dark moist, while there are vinegar flies around the rotten ears, emitting acetic acid taste... Site of occurrence:fruitOccurrence stage:After grape sealing→When grapes are coloredBest prevention time:Staining to MaturityGrape Powdery MildewIt is a common disease of many plant species and belongs to the fungal disease of the genus Leptospira of ascomycetes... Grapes infected with anthrax are ugly and have low commercial value...

    Categories: Agribusiness, Organic, Timber Production

    Test results of 100% natural biostimulant results in organic farming breakthrough (AgroNews)

    By Christopher Keen

    Published Oct 29, 2019

    When a retired farmer and organic farming consultant is motivated to put his boots back on and get back into the fields, you know something special is happening. That’s exactly how Daniel Rotberg felt when he studied the first GroAloe trial conducted on grapes with a major leafhopper infestation. The trial shows that, “The overall health of the Vineyard has completely transformed from weak and in some places, diseased plants, to a robust and healthy condition with many more grape shoots now forming... ” The results that GroAloe is showing on crops ranging from grapes grown in Canada, rice in Indonesia to Cannabis and Hemp in California and Oregon are remarkable... We recommend several spaced out foliar applications as soon as the grapes are harvested and the area has been cleaned of old vines and debris...

    Categories: Organic, Rice, Wheat

    How to prevent powdery mildew

    By Elvis Wu

    Published Oct 12, 2019

    If you grow grapes, you may reach to see a white powdery substance on the grape leaves. It’s the grape powdery mildew. Especially in the main grapevine growing area such as the Americas, Europe, and Australia. The symptoms look as a whitish-gray powdery coating on the leaves or fruit caused by plant part and conidia on the surface of the plant... If leaf cover is thick, expose developing grapes and improve air circulation by removing leaves at the bases of the stems...

    Categories: Agribusiness

    Why magnesium is important for grape?

    By Darren Chan

    Published Jul 4, 2018

    Magnesium’s effect is essential for grape,it can be called “a large number of elements” for grapes,and the demand is simliar to phosphorus. Even the magnesium content of grape leaves is higher than that of phosphorus. It is directly involved in physiological and biochemical processes such as photosynthesis and enzyme activation of grapes,and is one of the mineral elements necessary for normal growth and development of grapes and improvement of fruit quality... The photosynthesis of grapes,the conversion of phosphorus,the formation of pectin substances and vitamin A,and the elimination of the harmful effects of excess calcium are all inseparable from the participation of magnesium... Improve the yield and quality of grapesMagnesium can promote photosynthesis,strengthen carbon dioxide fixation and dry matter accumulation,which is an important factor affecting the formation of grape quality...

    Categories: Agribusiness, Cover Crops, Specialty/Vegetable

    What's symptom Grape leaf roll disease ?

    By Darren Chan

    Published Dec 4, 2018

    Grape leafroll DiseasesGrape leafroll disease is a common virus disease in grape production, which is widely spread. Grape leaf roll disease has semi-latent characteristics. It does not show symptoms in most growing seasons... Dodder can transmit virus from diseased grapes to healthy grapes in the field. Juice inoculation can not spread from grapes to grapes, but it can be transmitted to herbal hosts through grapes...

    Categories: Agribusiness, Marketing, Organic

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  • Best way to control powdery mildew on grape plant 1

    By Darren Chan

    Published Oct 22, 2018

    If you grow grapes,you may reaching to see a white powdery substance on the grape leaves. It’s the grape powdery mildew. Especally in main grapevine growing area such as Americas,Europe and Australia. The disease seems as a whitish-gray powdery coating on the leaves or fruit caused by plant mycelium and conidia on the surface of the plant... If leaf cover is thick, expose developing grapes and improve air circulation by removing leaves at the bases of the stems...

    Categories: Agribusiness, Canola, Organic

    Best way to control powdery mildew on grape plant

    By Darren Chan

    Published Oct 22, 2018

    If you grow grapes,you may reaching to see a white powdery substance on the grape leaves. It’s the grape powdery mildew. Especally in main grapevine growing area such as Americas,Europe and Australia. The disease seems as a whitish-gray powdery coating on the leaves or fruit caused by plant mycelium and conidia on the surface of the plant... If leaf cover is thick, expose developing grapes and improve air circulation by removing leaves at the bases of the stems...

    Categories: Agribusiness, Canola, Organic

    Type of Organic Fertilizer

    By Darren Chan

    Published Dec 17, 2019

    What's Organic FertilizerNowadays, as the level of modernization of agriculture is getting higher and higher, sustainable agriculture is an important global issue. Organic food is receiving more and more attention. According to the trend, organic fertilizers are becoming the first choice for many people. Widely used for vegetables (tomatoes, lettuce, cucumber), fruits (strawberries, grapes, citrus), Cash crops (grass, flowers, cannabis)Organic Fertilizer DefinitionOrganic fertilizer is also called “farm manure. ” The definition of organic fertilizer is simple...

    Categories: Agribusiness, Organic, Wheat

    3 Most Troubling Grapevine Diseases

    By Darren Chan

    Published Dec 11, 2018

    There are more than 30 known grape diseases. Among them, sour rot, anthrax and powdery mildew are the most common diseases... Symptom There are rotten grapes, if it is bagged grapes, under the bags there is a dark moist, while there are vinegar flies around the rotten ears, emitting acetic acid taste... Site of occurrence:fruitOccurrence stage:After grape sealing→When grapes are coloredBest prevention time:Staining to MaturityGrape Powdery MildewIt is a common disease of many plant species and belongs to the fungal disease of the genus Leptospira of ascomycetes... Grapes infected with anthrax are ugly and have low commercial value...

    Categories: Agribusiness, Organic, Timber Production

    Test results of 100% natural biostimulant results in organic farming breakthrough (AgroNews)

    By Christopher Keen

    Published Oct 29, 2019

    When a retired farmer and organic farming consultant is motivated to put his boots back on and get back into the fields, you know something special is happening. That’s exactly how Daniel Rotberg felt when he studied the first GroAloe trial conducted on grapes with a major leafhopper infestation. The trial shows that, “The overall health of the Vineyard has completely transformed from weak and in some places, diseased plants, to a robust and healthy condition with many more grape shoots now forming... ” The results that GroAloe is showing on crops ranging from grapes grown in Canada, rice in Indonesia to Cannabis and Hemp in California and Oregon are remarkable... We recommend several spaced out foliar applications as soon as the grapes are harvested and the area has been cleaned of old vines and debris...

    Categories: Organic, Rice, Wheat

    How to prevent powdery mildew

    By Elvis Wu

    Published Oct 12, 2019

    If you grow grapes, you may reach to see a white powdery substance on the grape leaves. It’s the grape powdery mildew. Especially in the main grapevine growing area such as the Americas, Europe, and Australia. The symptoms look as a whitish-gray powdery coating on the leaves or fruit caused by plant part and conidia on the surface of the plant... If leaf cover is thick, expose developing grapes and improve air circulation by removing leaves at the bases of the stems...

    Categories: Agribusiness

    Why magnesium is important for grape?

    By Darren Chan

    Published Jul 4, 2018

    Magnesium’s effect is essential for grape,it can be called “a large number of elements” for grapes,and the demand is simliar to phosphorus. Even the magnesium content of grape leaves is higher than that of phosphorus. It is directly involved in physiological and biochemical processes such as photosynthesis and enzyme activation of grapes,and is one of the mineral elements necessary for normal growth and development of grapes and improvement of fruit quality... The photosynthesis of grapes,the conversion of phosphorus,the formation of pectin substances and vitamin A,and the elimination of the harmful effects of excess calcium are all inseparable from the participation of magnesium... Improve the yield and quality of grapesMagnesium can promote photosynthesis,strengthen carbon dioxide fixation and dry matter accumulation,which is an important factor affecting the formation of grape quality...

    Categories: Agribusiness, Cover Crops, Specialty/Vegetable

    What's symptom Grape leaf roll disease ?

    By Darren Chan

    Published Dec 4, 2018

    Grape leafroll DiseasesGrape leafroll disease is a common virus disease in grape production, which is widely spread. Grape leaf roll disease has semi-latent characteristics. It does not show symptoms in most growing seasons... Dodder can transmit virus from diseased grapes to healthy grapes in the field. Juice inoculation can not spread from grapes to grapes, but it can be transmitted to herbal hosts through grapes...

    Categories: Agribusiness, Marketing, Organic

  • Disease Detection in Tree Leaves and Fruits using Image Processing Techniques

    Authors: Nivetha. I, Dr. M. Padmaa

    Published in: Journal of Radio and Television Broadcast: 3 pp. 24-28.
    Communities: MAT JOURNALS

    India is the agriculture based country. Now a day, agricultural product yield is decrease for the reason of disease affect the plants like fungus, virus diseases. In this paper, we detect the tree leaves and fruits disease using image processing techniques. In this paper apple, grapes and pomegranate disease are detected. The apple diseases are apple scab, apple rot, Marssonina leaf blotch, black rot canker, apple mosaic. The grape diseases are black rot, powdery mildew, downy mildew, anthracnose, bacterial leaf spot, and rust. The pomegranate diseases are bacterial blight, aspergillus fruit rot, anthracnose, cercospora fruit spot, cescospora leaf spot.

    Photos: Input image, Resized image, Gray image, Noise removal Image, Color filter, Filtered image, Contrast enhanced, Otsu segmentation, Conversion to HIS, Neural network, Disease name respectively (credits: Nivetha. I, Dr. M. Padmaa)

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    Posted By Darren Chan
    Dec 11, 2018

    https://agfuse.com/article/3-most-troubling-grapevine-diseases

    Posted By Darren Chan
    Dec 17, 2019

    https://agfuse.com/article/type-of-organic-fertilizer

    Use of multispectral and thermal imagery in precision viticulture

    Authors: G Tanda and V. Chiarabini

    Published under licence by IOP Publishing Ltd
    Journal of Physics: Conference Series, Volume 1224, conference 1

    The increasing demand for higher quality and yield of wine production has led to a growing interest in precision viticulture, i.e., practices of monitoring and managing spatial variations in variables related to productivity within a vineyard. This paper presents a few applications of optical measurements, in combination with monitoring systems making use of geolocation and remote/proximal sensing, to calculate vegetation indices related to plant vigour and water stress in vineyards. Measurements were performed on vineyards in Burgenland, Austria, by both aerial and proximal (terrestrial) sensing techniques. A remote-sensing, four-band multispectral sensor, placed on an Unmanned Aerial Vehicle (UAV), has been used to detect the spectral signature of the vineyard and to calculate the NDVI index, useful to selectively address the harvest on the basis of quality and quantity of grapes. Proximal, thermal infrared imaging complemented the investigation providing information about the water status of the vegetation through the CWSI index. Examples of vigour maps are provided, showing, inside a given parcel, the presence of canopies at different level of vegetation characteristics. Results provide a range of information useful to make the optimal choice in management strategies of vineyards.

    Photo: UAV equipped with multispectral sensor, GPS device and digital camera. (credits: G Tanda and V. Chiarabini)

    Check more https://adalidda.com/posts/RCvbdQDZK7mjyn6H8/use-of-multispectral-and-thermal-imagery-in-precision

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    VineRobot, an Unmanned ground vehicle equipped with non-invasive sensor technology to monitor grape growth

    The VineRobot is equipped with non-invasive advanced sensors and artificial intelligence systems, to provide reliable, fast and objective information on the state of the vineyards to grape growers. Thanks to these technologies, VineRobot will be able to work — that is, retrieving agronomical and physiological data from the grapevines — autonomously and safely over long periods of time under the uncertain environmental conditions typically found in vineyards.

    The first version of the VineRobot incorporates a fluorescence-based sensor to assess nitrogen content in leaves. The measurement is performed on-the-go and provides information about the heterogeneity and state of the vineyard.
    The other sensor included in the VineRobot measures the anthocyanin content in grapes. This sensor is a fusion between a fluorescence sensor and a fine vision system: It gathers information about the composition of grape berries.

    Photo: VineRobot (crédits: VineRobot Project http://www.vinerobot.eu)

    Check more https://adalidda.com/posts/uo6xZhtWngJD3KrMx/vinerobot-an-unmanned-ground-vehicle-equipped-with-non

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    Posted By Darren Chan
    Oct 22, 2018

    https://agfuse.com/article/best-way-to-control-powdery-mildew-on-grape-plant-1

    Posted By Darren Chan
    Oct 22, 2018

    https://agfuse.com/article/best-way-to-control-powdery-mildew-on-grape-plant

    Posted By Technology
    Aug 3, 2018

    https://www.growingproduce.com/fruits/grapes/make-vineyard-management-precise/

    Posted By Darren Chan
    Jul 4, 2018

    https://agfuse.com/article/why-magnesium-is-important-for-grape-
    Mini review: Fruit Residues as Plant Biostimulants for Bio-based Product Recovery

    Authors: Andrea Ertani, Ornella Francioso, Serenella Nardi

    Journal Title: AIMS Agriculture and Food

    ISSN: 2471-2086 (Online)

    Publisher: AIMS Press

    The request of natural products has augmented in the last years due to the increase in intolerance and allergy reactions showed by humans versus pesticides and certain chemical compounds used in agriculture. In response to this demand, innovative methods and new natural matrices have been exploited to obtain products able to increase plant nutrients use efficiency. In this context, agro-industrial residues contain bioactive molecules, including antioxidants and phenols, which may be used by farmers to improve crop productivity. Phenols are ubiquitous in plants and are essential components of the human diet by virtue of their antioxidant properties. They may also act as positive growth regulators by modifying the root architecture and, consequently, the uptake of macronutrients, potassium especially. In order to understand their effects on the plant metabolic pathways, agro-industrial residues were supplied to maize plants and the activity of specific enzymes was evaluated. In this review, developments and improved understanding on fruit residues on primary and secondary plants metabolism are discussed.

    Illustration Photo: Crushed grapes emerge from an old-style wine press as pomace, which contains dietary fiber and antioxidants (credits: Lynn Ketchum / Oregon State University / Flickr Creative Commons Attribution-ShareAlike 2.0 Generic (CC BY-SA 2.0))

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