Panagrolaimus Nematode
Panagrolaimus spp.
Symptoms: Nematode-infested seed are elongated, with
a longitudinal fissure approximately two-thirds the length of
one side. There is a small slit on the micropyle of the hilum
region. Infested seed are shrivelled and dark gray or grayish
black. They weigh less than healthy seed.
Pathogen and disease characteristics: Generally a common
soil nematode. Seed can become infested when panicles are in contact
with the soil.
Host range: Pearl millet, rice.
Geographic distribution: India.
Nomenclature discrepancies: None.
Seed transmission: Seeds are infested. Fumigation with
methyl bromide (32 g/m3) under
vacuum for 4 hours does not kill the nematodes in dry seeds, but
this treatment is effective on hydrated seeds. Infested seeds
do not germinate.
Primary citation: Panchbhai
et al. 1987.
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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