Dagger Nematode
Xiphinema americanum Cobb
Symptoms: Reduced vigor is implied in the primary citation.
General symptoms on maize include reduction of feeder roots, root
decay, moderate stunting, and chlorosis (Shurtleff
1980).
Pathogen and disease characteristics: Ectoparasitic
nematode. Not described in the primary citation; consultation
of other references is advised.
Host range: Pearl millet, sorghum-sudangrass hybrids.
Also other grasses, legumes, sugarcane, cotton, pepper, tomato,
citrus, pines, banana (Shurtleff 1980).
Consult other references for additional hosts.
Geographic distribution: USA. Consultation of other
references is advised.
Nomenclature discrepancies: None.
Seed transmission: Not transmitted by seed.
Primary citation: Johnson and
Burton 1973.
United States
Department of Agriculture
Agricultural
Research Service
The material on this page is in the public
domain.
Original posting: June 5, 1999.
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