necrotic spots host:www.bspp.org.uk

Listing 1 - 10 from 13 for necrotic spots

New Disease Reports - First report of Turnip mosaic virus on Brassicaceae crops in Turkey
... Brassicaceae crops, Brassica oleracea, Raphanus sativus and R. raphanistrum, showing mosaic, mottling, necrotic spots, malformation and chlorosis were collected from Canakkale, Balikesir and Bursa Province of ... not shown). Figure 1: Brassica oleracea var. capitata showing typical mottling and necrotic spots symptoms Figure 2: Raphanus sativus showing mosaic, malformation and chlorosis symptoms ...
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New Disease Reports - First report of Eggplant mottled dwarf virus in potato and tomato in Slovenia
... summer of 2003 tomato plants cv. Belle, showing unusual symptoms of distinct chlorotic spots, wrinkles on fruits and narrow, necrotic leaves, were observed in north-eastern Slovenia, about 16 km from RakiÄ ... yellowing of veins and leaf curling was observed on N. tabacum cv. White Burley and necrotic spots, starting on the bases of the leaves on N. clevelandii. These symptoms resembled those of ...
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New Disease Reports - First report of Alternaria tenuissima causing leaf spot and fruit rot on eggplant (Solanum melongena) in India
... Guntur district Andhra Pradesh, India. The symptoms recorded were small, circular, brown necrotic spots all over the foliage. The spots gradually enlarged in size and later became irregular in shape or remained ... with concentric rings or zones (Fig. 1). In the later stage of infection, these spots coalesced resulting in withering, extensive drying and shedding of leaves. On fruit, the symptoms ...
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New Disease Reports - First report of Alternaria mali causing necrotic leaf spot of apples in Turkey
... and applied to the underside of wounded leaves as described in Johnson et al., 2000. Necrotic spots were observed on the leaves 24 hours after the inoculation (Fig. 4). These results supported ... report of Alternaria necrotic leaf spot of apples caused by A.mali in Turkey. Figure 3: Necrotic spots of A. mali on leaves of inoculated young apple plant Figure 4: Necrotic spots formed on the ...
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New Disease Reports - First report of Bipolaris leaf blight of coconut (Cocos nucifera) caused by Bipolaris incurvata in mainland India
... were maintained at 20 ± 2°C under near UV light. Inoculated leaf pieces produced typical necrotic spots after seven days incubation. The fungus was consistently re-isolated from infected leaf pieces onto ... Alcorn. Current Science 57, 674-675. Uchida JY, Aragaki M, 1991. Bipolaris and Exserohilum leaf spots. In: Chase AR, Broschat TK, eds. Diseases and Disorders of Ornamental Palms. St. Paul, ...
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New Disease Reports - Volume 7: February 2003 - July 2003
... & S. Kurt Botryosphaeria dothidea causing stem spots on Hylocereus undatus in Mexico causing stem spots on Hylocereus undatus in Mexico A.J ... , A. Eşitken & S. Ercişli First report of Carnation necrotic fleck virus (CNFV) infecting carnations in India G. Raikhy, V. ... A. Fuentes, M. Pujol & G. González Corynespora cassiicola causing leaf spots on Coleus barbatus R.C. Fernandes & R.W. Barreto ...
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New Disease Reports - First report of Alternaria alternata causing leaf spot on Stevia rebaudiana
... infections were observed in the region of South Bengal. Symptoms initially appeared as small circular spots, light brown in colour. Later, many became irregular and dark brown to grey, while others ... or zones. On severely infected leaves several spots coalesced to form large necrotic areas. On older leaves concentric spots were more common at the tips. Leaf spots varied from 2-18 mm (Fig. 1 ...
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New Disease Reports - First report on leaf blight of Lindera obtusiloba caused by Pestalotiopsis microspora in Korea
... Figure 4: Infected (left) and healthy (right) leaves by artificial wound inoculation, showing brown spots and lesions. To confirm pathogenicity, detached shoots of Japanese spicebush were wound-inoculated ... Symptoms similar to the original ones started to appear after 5 days. Dark brown necrotic lesions with yellow-brownish peripheral halos were observed on inoculated leaves, while untreated ...
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New Disease Reports - First record of powdery mildew caused by Oidiopsis haplophylli on Tropaeolum majus in Brazil
... of Oidiopsis haplophylli on Tropaeolum majus In November 2005 plants showing symptoms of angular leaf spots with an abaxial whitish fungal cover, similar to those caused by Ramularia-like fungi, were ... garden at Embú das Artes, Sao Paulo.  The disease started as chlorotic leaf spots, which later became  necrotic and angular.  The whitish fungal structures turned out to belong to a powdery mildew ...
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New Disease Reports - First record of the downy mildew Peronospora myosotidis on Brunnera macrophylla in the UK
... sample of Brunnera macrophylla cv Jack Frost (Boraginacae) with numerous discrete, angular, brown necrotic leaf spots, was submitted to the Central Science Laboratory for diagnosis. The plants had been ... pubescent leaves, sporulation typical of a downy mildew was associated with the leaf spots. Sporangiophores were dichotomously branched 5 to 8 times, and sporangia were ellipsoid to globose ...
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