Volume 39 Number 3 Article 5 Pages: 26-30
Year 1985 Month 7
Title: Plant-Parasitic Nematodes Affecting Citrus
Author: D.T. Kaplan
A number of plant-parasitic nematodes have been associated with citrus
(Table 1). However, only Belonolaimus
longicaudatus (21), Hemicycliophora
arenaria (25), Meloidogyne spp.
(3), Pratylenchus brachyurus (20), P.
coffeae (19), P. vulnus (10), Radopho
lus citrophilus (22) and Tylenchulus
semipenetrans (5) have been associated with crop damage.
associated with these plant-parasitic
nematodes range from slight to severe
and are influenced by a number of
factors which include rootstock, nematode
species and/or biotype and environmental conditions.
All plant-parasitic nematodes associated with citrus
are obligate parasites living in soil or
roots and derive their nourishment
from tree roots.
Their mode of parasitism ranges from ectoparasitic forms
which occur in the rhizosphere and
insert their stylets into roots to feed,
to migratory endoparasites which in
vade and move within roots as they
feed, to the sedentary endoparasites
which, in essence, stimulate the host
to nurture the female nematode and
thereby perpetuate the nematode populations.
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