Nigel Cattlin / Black rot (Guignardia bidwellii f. muscadinii) leaf spot lesions on muscadine grapevine, Florida, USA, May

Nigel Cattlin / Powdery mildew (Uncinula necator) fungal disease infection causing discoloured and split white wine grapes, Greece

Nigel Cattlin / Downy mildew (Plasmopara viticola) lesions on Viti cola grapevine leaf top & underside, Greece

Nigel Cattlin / Grapevine blister mite (Eriophyes vitis), white damage blisters on the lower surface of vine leaves in France

Nigel Cattlin / Grapevine blister mite (Eriophyes vitis) damage blisters on the upper surface of vine leaves in Gironde, France

Nigel Cattlin / Powdery milew (Uncinula necator) fungal disease infection on poor fruit on a grape vine.