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leaf distortion
Host: chrysanthemum (Chrysanthemum spp.
L.)
Descriptor: Symptoms
Description: Leaves showed white tissue in areas on the margins and areas of white flecking located symmetrically on the leaves. A representative from Yoder Bros. said they call this the "Lisa problem". Yoder has done extensive virus/viroid testing over time and we have never been able to associate a virus or viroid. Likewise, they have done foliar and soil analyses and not been able to associate anything consistently. Also, they have never been able to associate spray injury, etc. Yoder sees this on 'Lisa' usually in the heat of the summer. The sunken white flecks are not apparent in cooler temperatures. Usually the crop grows out of it. After several years, this flecking symptom has not been considered a major problem for the chrysanthemum crop.
Image type: Laboratory
Image location: Kentucky, United States
Photographer Information
Name: Paul Bachi
Organization: University of Kentucky Research and Education Center
Country: United States
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Image Number: 5369003
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Image Use:(?)
You must attribute the work in the manner specified (but not in any way that suggests endorsement). You may not use this work for commercial purposes unless permission is granted by the photographer or copyright owner.
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Image Citation:(?) Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org
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Node Affiliation:
University of Georgia
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Available Images Resolutions:
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