Wood Impact Top of page A. The weight of the crown of strawberry, cv. Damage to the plant crowns and reduced yield were related to population density in winter and spring but reduced runner production was due to the summer population density Bohmer, A foliar blight of anthurium Anthurium andraeanum in Hawaii which is often lethal in young plants was found to be caused by Aphelenchoides fragariae. The nematode also invades and destroys anthurium seeds Hunter et al.
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Aphelenchoidinae Aphelenchoides Fischer, As of there were more than nominal species assigned to the genus Esmaeli et al. Many are poorly described based on morphological and anatomical characters alone and are difficult to identify de Jesus et al. The genus Aphelenchoides has as type species A. Species of the genus occur in soil, decaying plant residues, moss, and on the surfaces of rocks and trees.
Many of the species are mycophagous but a few have importance importance as ecto- and endoparasites of plants. The major plant-parasitic species include A. Allen provided a key to the four important species related to A.
Head swollen, wider than neck, 4 lines in wing area Length of post-uterine branch 5 or more times body width Tail bluntly rounded, with a single ventral spine Tail terminus peg-like, with 4 small mucrons The term "foliar nematodes" is the common name of plant-parasitic forms in the genus Aphelenchoides. However, although some species of the genus are important plant pests, others are found in, and can be recovered from, soil, mosses, mushrooms and decaying organic materials Aliramaji et al.
Many of the species are fungivores or facultative funcgivores. Morphology and Anatomy: Species identification is difficult due to poor older descriptions and unavailable type material. Molecular data are unavailable for most species, especially those described earliest. Body length 0. Lip region usually slightly offset from body contour.
Nematodes in this genus have a large metacorpus. Dorsal overlap of the esophageal glands over the intestine. Slender stylet with small, distinct knobs. Dorsal esophageal gland opens into lumen of esophagus in metacorpus, just anterior to the pump chamber.
Subventral esophageal glands open into lumen of esophagus in metacorpus, posterior to the pump chamber. Tails of both sexes never elongate-filiform, but usually more or less tapering, conical and frequently ending in one or more mucrons.. Ref: Nickle,
EPPO Global Database
Wood Impact Top of page A. The crown weight of strawberry cv. Damage to the plant crowns and reduced yield were related to population density in winter and spring, but reduced runner production was due to the summer population density Bohmer, Due to infection by A. The variety Yasna seems to be somewhat less susceptible to A. In Poland, A. Diagnosis Top of page Increased numbers of A.
In , Markinowski grouped A. Male A. The head is sharply differentiated from the body in that it is noticeably wider than the neck. This nematode has four lateral incisures. Females have at least two rows of oocytes and the spicule on the male nematodes is a short ventral process without outgrowths.