lesion nematode (Pratylenchus spp. ) on flue-cured tobacco (Nicotiana tabacum (flue-cured type)) - 1402035

lesion nematode
Pratylenchus sp.

Host: flue-cured tobacco (Nicotiana tabacum (flue-cured type) L.)
Descriptor: Damage
Description: Root lesion nematode damage (also called brown root rot) usually occurs in well-defined areas in the field. Infected plants are stunted, yellowed, tend to wilt during the heat of the day, and "fire" along leaf margins. Root lesion nematodes enter the white feeder roots causing small, reddish-brown lesions. Severe infections cause extensive root pruning and root rot resulting in a tap root lacking lateral roots. Secondary root growth is abundant near the soil surface away from severe nematode activity. On some rotted roots, the tissue easily sloughs off in a sleeve-like fashion, leaving the stringy vascular cylinder.
Image type: Field
Image location: United States

Specimen Information

Specimen in collection: No
Specimen Condition:
Identification Method:

Photographer Information

Name: R.J. Reynolds Tobacco Company Slide Set
Organization: R.J. Reynolds Tobacco Company
Country: United States

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Image Number: 1402035

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Image Citation:(?) R.J. Reynolds Tobacco Company Slide Set, R.J. Reynolds Tobacco Company, Bugwood.org

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Image uploaded on Sunday, March 10, 2002
Image Information last updated on Tuesday, June 14, 2011