البياض الدقيقى علي العنقود البياض الدقيقى علي الافرع اصابة قديمة.

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Presentation transcript:

البياض الدقيقى علي العنقود

البياض الدقيقى علي الافرع اصابة قديمة

البياض الدقيقى الجسم الثمري

البياض الزغبي على الاوراق

جراثيم الفطر plasmopara viticola

الذراع الميت علي العنب

الذراع الميت في العنب

ميسليوم وجراثيم الفطر phomopsis viticolaالمسبب للمرض

دورة حياة الفطر phomopsis viticola

الطور الكامل للمسبب المرضي حيث يظهر عنق الجسم الثمري علي الافرع المصابة

الكيس الاسكي للطور الكامل Diaporthe perjuncta

Botrytis lesion at node of young shoot

Botrytis-blighted flower cluster

Botrytis-infected berry

Sporulation on late season infection

الاصابة الشديدة بالبوتريتس

Grape Black Rot caused by the fungus, Guignardia bidwellii

Eutypa dieback caused by the fungus, EUtypa armeniacea

Flavescence doree symptoms on Chardonnay, including downward leaf rolling and shrivelling of berry clusters

Bois noir symptoms on Grenache clonal 70 on rootstock 3309 clonal 143

Grapevine corky bark disease foliar symptoms on LN33 indicator (Grapevine virus B).

Grapevine rupestris stem pitting disease.

Grapevine fanleaf virus symptoms - yellow mosaic pattern on leaf.

Grapevine fanleaf virus symptoms - bright yellow vein banding on lea

Grapevine leafroll disease

Grapevines with yellow leaf mottle due to Arabis mosaic nepovirus, cv. Tamiioasca romineasca.