أمراض العنب GRAPEVINE DISEASES
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Transcript of أمراض العنب GRAPEVINE DISEASES
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علي البياض الدقيقىالعنقود
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علي االفرع البياض الدقيقى اصابة قديمة
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الجسم البياض الدقيقى الثمري
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على الزغبيالبياض االوراق
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جراثيم الفطر plasmopara viticola
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الذراع الميت علي العنب
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علي الذراع الميت العنب
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الذراع الميت في العنب
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الفطر وجراثيم للمرض phomopsis viticolaميسليوم المسبب
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الفطر حياة phomopsisدورةviticola
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المرضي للمسبب الكامل الطورالثمري الجسم عنق يظهر حيث
المصابة االفرع علي
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للطور االسكي الكيس
Diaporthe perjunctaالكامل
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Botrytis lesion at node of young shoot
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Botrytis-blighted flower cluster
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Botrytis-infected berry
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Sporulation on late season infection
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بالبوتريتس ال الشديدة اصابة
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Grape Black Rot caused by the fungus, Guignardia
bidwellii
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•Eutypa dieback caused by the fungus,
EUtypa armeniacea
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Flavescence doree symptoms on Chardonnay, including downward leaf rolling and shrivelling of berry clusters
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Bois noir symptoms on Grenache clonal 70
on rootstock 3309 clonal 143
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Grapevine corky bark disease foliar symptoms on LN33 indicator (Grapevine virus B).
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Grapevine rupestris
stem pitting
disease.
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Grapevine fanleaf virus
symptoms - yellow mosaic
pattern on leaf.
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Grapevine fanleaf virus
symptoms - bright
yellow vein banding on
lea
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Grapevine leafroll
disease
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Grapevines with yellow leaf mottle due to Arabis mosaic nepovirus, cv. Tamiioasca
romineasca.
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