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Fruit Varieties Journal
(Fruit Var J)

American Pomological Society

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. Crop losses 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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