Botryosphaeria dieback

First molecular confirmation of Lasiodiplodia theobromae causing grapevine trunk disease in southern Egypt

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Researchers in Egypt identified a fungus called Lasiodiplodia theobromae as the cause of a serious disease affecting grapevines in the southern region. Using both microscopic examination and genetic analysis, they confirmed the fungus causes dark streaking in grape vine trunks, leading to branch death and decline. When they tested the fungus on grape tissues in the laboratory, it successfully infected all tested samples, showing it is a highly virulent pathogen. The findings suggest farmers need to use disease-resistant grape varieties and implement management strategies to prevent losses.

Kalmusia variispora (Didymosphaeriaceae, Dothideomycetes) Associated with the Grapevine Trunk Disease Complex in Cyprus

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Kalmusia variispora is a fungus that causes trunk diseases in grapevines, resulting in wood discoloration and plant decline. This study identified the fungus in Cyprus vineyards and demonstrated its ability to infect and damage grapevine wood. The fungus produces enzymes that break down plant cell walls, with stronger enzyme production correlating to more severe disease. Understanding this pathogen is important for developing better disease management strategies in vineyards.

Native Bacteria Are Effective Biocontrol Agents at a Wide Range of Temperatures of Neofusicoccum parvum, Associated with Botryosphaeria Dieback on Grapevine

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Researchers from Chile identified native bacteria (specifically Pseudomonas strains) that effectively prevent a destructive fungal disease affecting grapevines. These bacteria can work across a wide range of temperatures and significantly reduce fungal growth both in laboratory tests and in actual vineyard conditions. This discovery offers an environmentally friendly alternative to chemical fungicides for protecting grapevines, particularly important as younger vines appear more vulnerable to infection.

Evaluation of electrolyzed water to control fungal trunk pathogens in grapevine nurseries

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Scientists tested a new disinfection treatment called electrolyzed water on grapevine nursery plants to prevent fungal infections. The treatment uses a simple process of mixing water, salt, and electricity to create a natural disinfectant. Tests showed the treatment effectively reduced fungal infections in young grapevines without harming the plants, offering grape growers a promising new way to protect their nursery stock.

Evaluation of electrolyzed water to control fungal trunk pathogens in grapevine nurseries

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Growers struggle with fungal diseases that infect grapevine nurseries, reducing the quality of planting material. Researchers tested electrolyzed water—a solution made from salt and water using electricity—as a sustainable treatment for infected grapevine cuttings. Laboratory tests showed the treatment effectively killed fungal spores and reduced fungal growth. Field trials at a commercial nursery confirmed that treating cuttings with electrolyzed water reduced certain grapevine diseases without harming plant growth.

An Overview of α-Pyrones as Phytotoxins Produced by Plant Pathogen Fungi

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This comprehensive review examines toxic compounds called α-pyrones that are produced by disease-causing fungi affecting crops and plants. These compounds act as natural poisons that help fungi damage plants, but interestingly, they also have potential medical uses including antibacterial, antifungal, and anti-cancer properties. Researchers have studied how the chemical structure of these compounds relates to their toxicity, which could help develop new herbicides for weed control and treatments for various diseases. The review covers dozens of these compounds and their applications in agriculture, medicine, and biotechnology.

Native Bacteria Are Effective Biocontrol Agents at a Wide Range of Temperatures of Neofusicoccum parvum, Associated with Botryosphaeria Dieback on Grapevine

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Scientists discovered that native bacteria from Chile, particularly Pseudomonas strains, can effectively control a serious fungus that damages grapevines. These bacteria work across a range of temperatures and successfully reduced fungal growth both in laboratory tests and in actual vineyards. This discovery offers a natural, environmentally-friendly alternative to chemical fungicides for protecting grape crops.

High-Resolution Melting assays development for discrimination of fungal pathogens causing Grapevine Trunk Diseases

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Grapevine Trunk Diseases cause major losses in vineyards worldwide but are difficult to diagnose early because symptoms may not appear for years. This study developed fast and affordable DNA-based tests called HRM assays that can identify ten different disease-causing fungi in grapevines. These tests work by analyzing DNA melting patterns and can even detect infections before symptoms appear, helping vineyard managers make better decisions about plant treatment and removal.

High-Resolution Melting assays development for discrimination of fungal pathogens causing Grapevine Trunk Diseases

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Researchers developed quick and affordable DNA tests to identify fungal diseases in grapevines before they show visible symptoms. Using a technique called High-Resolution Melting, the tests can detect ten different disease-causing fungi that damage grape plants. These early detection tools help vineyard owners treat infected plants faster and save money on crop losses.

Disease: Botryosphaeria dieback