phytoplasma, virus and virus like diseases in vines plants. leaves affected

affected agriculture agronomy bacteria botany bright bunch cell cells chlorosis closeup color colorful conditions disease dying farm farming field fruit fungicide garden gardening glsd grape grapevine growing harvest healthy industry infected injuring injury killing leaves lush margin microscopic multicolor nobody organic outdoors pathogen pathogens petri phloem phytoplasmas plantation purple quality red reddish rural spores spread spring structure surrounded tissue typically vegetable vine vineyard vineyards viruses viticulture weathers winery yellow