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leaf spot

Listing 1 - 10 from 319 for leaf spot
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Leaf Spot
... leaf spot which can cause severe defoliation and reduction in yield. This disease can produce flecking, leaf anthracnose and stem lesions. Gloeosporium leaf spot was first described as a stem and leaf ...
www.ces.ncsu.edu

Strawberry Leaf Spot Diseases, HYG-3015-95
... moist, warm conditions. Leaf Spot Leaf spot is caused by the fungus, Mycosphaerella fragariae. Symptoms of leaf spot first appear as circular, deep purple spots on the upper leaf surface. These spots ... Control Leaf spot and leaf scorch are controlled most effectively by the use of resistant varieties. The following junebearing varieties are reported to be resistant to both leaf spot and leaf scorch: ...
ohioline.osu.edu

Cherry Leaf Spot, HYG-3021-95
... Leaf Spot, HYG-3021-95 Ohio State University Extension Fact Sheet Plant Pathology 2021 Coffey Road, Columbus, OH 43210-1087 Cherry Leaf Spot HYG-3021-95 Michael A. Ellis Cherry leaf spot is one of ... Road; Columbus, OH 43210-1044. Table 1. Approximate minimum number of hours of leaf wetness required to produce leaf spot infections caused by conidia on sour cherries. a temp. (Degrees F) Average ...
ohioline.osu.edu
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Cucumis and Cucurbita species Disease Descriptions - Alternaria Leaf Spot
... Cucumis and Cucurbita species Disease Descriptions - Alternaria Leaf Spot Alternaria Leaf Spot Symptoms on Cantaloupe Alternaria Leaf Spot (fungus - Alternaria cucumerina): Small, circular watersoaked spots first appear on the leaves, later enlarging to ...
plantpathology.tamu.edu

Cucumis and Cucurbita species Disease Descriptions - Angular Leaf Spot
... Leaf Spot Angular Leaf Spot (bacterium - Pseudomonas syringae pv. lacrymans): This disease appears on leaves, stems and fruit. Spots are small, angular, straw-colored and watersoaked. Leaf spots often dry and fall out giving the leaf ... Crop rotation with non-cucurbit crops is helpful for control of angular leaf spot. Application of copper fungicide will assist in control. Cucurbits, however, are ...
plantpathology.tamu.edu
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Reduction of bacterial leaf spot severity on radish, lettuce, and tomato plants grown in compost-amended potting mixes
... leaf spot severity on radish, lettuce, and tomato plants grown in compost-amended potting mixes Reduction of bacterial leaf spot severity on radish, lettuce, and tomato plants grown in ... FCPB) against bacterial leaf spot of radish, lettuce, and tomato under controlled environment conditions was evaluated. Plants grown in the FCPB mix and inoculated with bacterial leaf spot pathogens were less ...
pubs.nrc-cnrc.gc.ca

ODIN011 - Entomosporium Leaf Spot on Red Tip
... of each leaf spot. Spots similar to those on the leaves can develop on leaf petioles and tender stem growth during prolonged periods of cool, wet weather. Low levels of leaf spot ... species that is not susceptible to leaf spot. Several fungicides may also be help in the management of leaf spot in the landscape. Fungicides Recommended for Entomosporium Leaf Spot Control Fungicide Rate per gallon ...
www.ces.ncsu.edu

Angular Leaf Spot of Cucumber
... Leaf Spot of Cucumber Angular Leaf Spot of Cucumber Author: Mary Ann Hansen, Extension Plant Pathologist, Department of Plant Pathology, Physiology and Weed Science, Virginia Tech Publication Number: 450-700, Posted December 2000 Angular leaf spot ... in Table 1 have resistance to angular leaf spot. Table 1. Cucumbers with resistance to angular leaf spot Pickling Slicers Calypso-F11 Fancipak M-F1 ...
www.ext.vt.edu

New Disease Reports - First report of Rhizoctonia solani causing leaf spot of Adhatoda vasica
... ). Figure 1: Symptoms of Rhizoctonia leaf spot on Adhatoda vasica leaf Figure 2: Close-up view of Rhizoctonia leaf spot on Adhatoda vasica leaf During October-November 2005, a leaf spot disease was found in A. ... solani causing leaf spot of A. vasica in India and elsewhere. The field symptoms show that the disease is able to reduce A. vasica bio-mass substantially. Rhizoctonia leaf spot constitutes a ...
www.bspp.org.uk

New Disease Reports - First report of Alternaria alternata causing leaf spot on Stevia rebaudiana
... New Disease Reports - First report of Alternaria alternata causing leaf spot on Stevia rebaudiana Reports Search NDR About NDR Editors Author Info Submission Links Occurrence and ... citrus leprosis virus (CiLV-C) in Honduras, Central America First report of Alternaria alternata causing leaf spot on Stevia rebaudiana C.K. Maiti, S. Sen, R. Acharya and K. Acharya* Molecular and ...
www.bspp.org.uk
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