Disease: wood necrosis

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.

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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.

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