Association of Pantoea ananatis and Pantoea agglomerans with leaf spot disease on ornamental plants of Araceae Family

2017 ◽  
Vol 150 (1) ◽  
pp. 167-178 ◽  
Author(s):  
R. Yazdani ◽  
N. Safaie ◽  
M. Shams-Bakhsh
Keyword(s):  
Leaf Spot ◽  
Ornamental Plants ◽  
Pantoea Agglomerans ◽  
Leaf Spot Disease ◽  
Pantoea Ananatis ◽  
Spot Disease

scholarly journals Pyricularia Leaf Spot: A New Disease of Ornamental Plants of the Family Marantaceae

Plant Disease ◽  
1998 ◽  
Vol 82 (5) ◽  
pp. 465-469 ◽  
Author(s):  
Athanassios C. Pappas ◽  
Epaminondas J. Paplomatas
Keyword(s):  
Leaf Spot ◽  
Ornamental Plants ◽  
Assay Method ◽  
Leaf Spot Disease ◽  
Highly Pathogenic ◽  
Banding Patterns ◽  
Spot Disease ◽  
The Family ◽  
Young Leaves ◽  
Severe Leaf

A severe leaf spot disease incited by the fungus Pyricularia oryzae was identified on Ctenanthe oppenheimiana and C. setosa “Greystar.” Primary symptoms on young leaves consisted of individual circular to slightly irregular pinpoint spots with white necrotic centers zonated by narrow brown-yellow halos. On mature leaves, extended necrotic areas resembling those caused by phytotoxicity were formed. Artificially inoculated leaves with a spore suspension of the isolated fungus from the above case showed symptoms after 3 to 4 days' incubation at 25°C and high humidity. Fungal isolates obtained from Ctenanthe plants of Brazilian origin were found to be highly pathogenic on various plants within the family Marantaceae when they were tested by an excised leaf assay method. By contrast, P. oryzae isolates obtained from rice plants grown in Greece caused either hypersensitivity or immune response symptoms in various Marantaceae. Analysis of esterase and lactate dehydrogenase isozymes showed different banding patterns for rice and Ctenanthe isolates of P. oryzae. Conditions of prolonged leaf wetness combined with prevailing high temperature and humidity favored the epidemic appearance of the Pyricularia leaf spot disease on glasshouse-grown plants during the summer months of 1995 in Greece.

TWO NEW SEVERE LEAF SPOT DISEASE ON FOREST TREES OF JALGAON (MAHARASTRA) INDIA

2017 ◽  
Vol 23 (2) ◽  
Author(s):  
S. A. FIRDOUSI
Keyword(s):  
Leaf Spot ◽  
Fungal Disease ◽  
Leaf Spot Disease ◽  
Forest Trees ◽  
First Report ◽  
Spot Disease ◽  
Severe Leaf

During the survey of the forest fungal disease, of Jalgaon district, two severe leaf spot diseases on Lannae coromandelica and ( Ougenia dalbergioides (Papilionaceae) were observed in Jalgaon, forest during July to September 2016-17. The casual organism was identified as Stigmina lanneae and Phomopsis sp. respectively1-4,7. These are first report from Jalgaon and Maharashtra state.

Rapid Inoculation Technique and Biological Control of Leaf Spot Disease in Oil Palm

2019 ◽  
Vol 2 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Delia Agustina ◽  
◽  
Cahya Prihatna ◽  
Antonius Suwanto ◽  
◽  
...  
Keyword(s):  
Biological Control ◽  
Oil Palm ◽  
Leaf Spot ◽  
Leaf Spot Disease ◽  
Inoculation Technique ◽  
Spot Disease

scholarly journals Registration of three peanut allotetraploid interspecific hybrids resistant to late leaf spot disease and tomato spotted wilt

2021 ◽  
Author(s):  
Ye Chu ◽  
H. Thomas Stalker ◽  
Kathleen Marasigan ◽  
Chandler M. Levinson ◽  
Dongying Gao ◽  
...  
Keyword(s):  
Leaf Spot ◽  
Interspecific Hybrids ◽  
Leaf Spot Disease ◽  
Late Leaf Spot ◽  
Spot Disease ◽  
Tomato Spotted Wilt

scholarly journals First report of chick peach (Prunus persica L.) leaf spot disease caused by Didymella glomerata in China

2021 ◽  
Author(s):  
Yiping Cui ◽  
Aitian Peng ◽  
Xiaobing Song ◽  
Baoping Cheng ◽  
Jinfeng Ling ◽  
...  
Keyword(s):  
Leaf Spot ◽  
Prunus Persica ◽  
Leaf Spot Disease ◽  
First Report ◽  
Spot Disease

scholarly journals Occurrence of leaf spot disease on date palm caused by Neopestalotiopsis clavispora in Iran

2020 ◽  
Vol 102 (3) ◽  
pp. 959-959
Author(s):  
Esmaeil Basavand ◽  
Ali Pakdin-Parizi ◽  
Hossein-Ali Mirhosseini ◽  
Mojtaba Dehghan-Niri
Keyword(s):  
Leaf Spot ◽  
Date Palm ◽  
Leaf Spot Disease ◽  
Spot Disease
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