chlorotic mottle

Listing 1 - 10 from 18 for chlorotic mottle

Nebraska plant viruses
... mosaic (narrow host range tymovirus, common) Hollyhock nepovirus (common) Hosta virus X (potexvirus, rare) Hosta picornavirus (sequivirus) Impatiens necrotic spot (tospovirus) Maize chlorotic mottle (machlomovirus, common in Republican Valley) - description Maize dwarf mosaic (potyvirus) - description Narcissus mosaic (potexvirus) - description Odontoglossum ringspot virus (tobamovirus) greenhouse ...
plantpath.unl.edu

Plant Path 369L
... In this laboratory you will inoculate maize (corn) with two different viruses and look at the interaction of these two viruses. The two viruses are maize dwarf mosaic, which is a common aphid transmitted potyvirus, and maize chlorotic mottle virus (symptoms) which is a relatively rare virus (in the U.S. it's found only in north central Kansas and south ...
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New Disease Reports - First record of Bean yellow mosaic virus infecting a member of the orchid genus Dactylorhiza
... become more widely available as an unusual, high-value garden plant. Figure 1: Leaf symptoms of Bean yellow mosaic virus on Dactylorhiza foliosa In June 2005, a D. foliosa sample was received at CSL showing symptoms of chlorotic mottle and streaking (Fig. 1). It was part of a large consignment of mature plants, of which 100% showed the same ...
www.bspp.org.uk

The BSPP - Publications - BSPP News33 Autumn 1998
... Dr Dez Barbara and Dr Nicola Spence at Horticultural Research International, on "Development of rapid, reliable diagnostic methods for the detection of chrysanthemum stunt viroid (CSVd) and chrysanthemum chlorotic mottle viroid (CMMVd)"; Lesley Ann Lunn of the University of Hertfordshire, working with Dr Roger Hadyn Williams at IACR-Rothamsted, on "Modification of a polymerase chain reaction-based ...
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SOY009 - Soybean Viruses
SOY009 - Soybean Viruses SOYBEAN VIRUSES Soybean Disease Information Note 9 Stephen Koenning, Extension Plant Pathologist [General Information] [Soybean Mosaic Virus] [Bean Pod Mottle Virus] [Tobacco Ringspot Virus] [Cowpea Chlorotic Mottle Virus][Resistant Cultivars] [Back to Soybean Disease Notes ][Other Resources] General Information A number of viruses affect soybean production in the ...
www.ces.ncsu.edu

Dogwood Problems
... as a white substance on both the upper and lower leaf surface. Leaves may become twisted or deformed and may develop a chlorotic mottle. While powdery mildew will not kill a tree outright, it can weak it thus causing it to become susceptible to other disease and environmental factors. For control, avoid excessive nitrogen fertilizer, improve air circulation, ...
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Publication: Geranium (Pelargonium)
... soil mix. Sterilize cutting medium, potting mix, cutting bench tools, etc.; soil drench with fungicides at planting. Pelargonium Flower Break Pelargonium flower break virus (PFBV) Symptoms range from mild, chlorotic mottle to ringspot patterns in leaves; plants may be stunted; white-streaking on the backs of petals (color-breaking) PFBV is mechanically transmitted. Diseased mother plants used for ...
www.ianrpubs.unl.edu

Ornamental Pathology Facts
... Infected tissues become covered with dusty gray spores. Botrytis cinerea Maintain greenhouse humidity below 98% at all times. Apply chlorothalonil, copper, fludioxonil, iprodione, or mancozeb as a foliar spray. Chlorotic Mottle Leaves, at first mottled, become completely yellow. Infected plants grown under low light conditions and when temperatures average less than 20C (69F) exhibit no symptoms. ...
www.ppath.cas.psu.edu

Vegetable Crops Pt1
... vein clearing and mottling occurs. Yellow variety fruits are green with isolated yellow zones and misshapen fruit. The virus is spread by the cucumber beetle. Tobacco Ringspot Virus (virus): Chlorotic stippling, ringspots and mild vein clearing occur on leaves on cantaloupe, honeydew, and cucumber. Squash leaves are severely affected, often showing leaf perforations. Fruit of yellow varieties are ...
plantpathology.tamu.edu

CAMELLIA
... spore masses may be seen in these cankers during moist periods. Leaves on affected branches turn chlorotic and branch tips die back. Plant in well-drained soil that has the proper pH and ... islands of green in the leaves. Destroy diseased plants. Propagate from disease-free plants. Yellow Mottle Leaf (virus): Irregular, yellow patterns on some leaves. No cure available. Propagate from disease-free ...
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