Aphelenchoides ritzemabosi. (checkered leaf disease). Polygonal spots that indicate the presence of this nematode in the leaf lamina are very characteristic. A. Mohammad Deimi and S. Barouti, Department of Plant Pathology, Faculty of Agriculture and Natural Resources, Science and Research Branch, Islamic Azad . General information about Aphelenchoides ritzemabosi (APLORI).
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A single female can lay as many as 3, eggs. Excessive humidity, water on stems and leaves, and contact between plants allow spraad of aphelnechoides nematode among plants. This pest can be difficult to control. Leaf and stem nematodes in the Azores, Madeira and the Canary Islands.
Aphelenchoides ritzemabosi (Chrysanthemum foliar eelworm)
Juhl gives a list of plant species in Denmark which are hosts for A. Nematological studies on chrysanthemums. Chemical Control Due to the variable regulations around de- registration of pesticides, we are for the moment not including any specific chemical control aphelsnchoides.
The species has been assigned to the family Aphelenchidae Fuchs, and later more appropriately to Aphelenchoididae Skarbilovich, Wie gefShrlich sind BlattSlchen an Erdbeeren? European and Mediterranean Plant Protection Organization, Wallace reported plant species ritzemahosi hosts, and Sturhan recorded it on 31 new hosts, mostly in Compositae, in Germany.
As an endoparasite, it enters the leaves through the stomata and moves about, feeding on the mesophyll cells. Gandarilla Basterrechea H, Populations may be undetectable after several months in plant-free soil. European and Mediterranean Plant Protection Organization. Maintain outdoor and greenhouse plantings free of weeds.
Since this nematode relies on moisture to move up the plant and between plants, care should be taken to avoid periods of wetness. The distribution in this summary table is based on all the information available.
Infection of various plants by A.
EPPO Global Database
The harmful effect of Aphelenchoides fragarip and A. It is also present throughout Europe from Portugal to Siberia; it was once present in Denmark but has been eradicated.
These are listed as resistant but not immune. Siddiqi reviewed control of A. The following cultivars of Chrysanthemum are resistant to this pest: The total life cycle takes 10—13 days  In susceptible varieties of Chrysanthemum, the female remains in one place within the leaf as it feeds on adjacent cells and continuously lays eggs.
CAB International, 4 pp. The nematode is also carried on the seeds aphelencoides aster Brown, Plant Pathology, 26 3: Vovlas and Lamberti, ; Lamberti et al.
Tobacco – Aphelenchoides ritzemabosi
The foliage is scanty and the flowers are few and deformed. Impact Top of page A. BoxTehran, Iran ; and J.
Growth Stages Top of page Vegetative growing stage. Plant Protection, 18 2: Description Top of page The morphology of A. Retrieved from ” https: It can feed both ectoparasitically and endoparasitically, with the later causing the most significant damage. Go to distribution map Journal of Aphelenchides, 16 2: Tail elongate-conoid, bearing a terminal peg which has two to four tooth-like processes pointing posteriorly and aphelencoides it a paint brush-like appearance.
Anzeiger fur Schadlingskunde und Pflanzenschutz, 44 The cells in infested areas are killed and the leaves develop brown lesions delimited by the veins Franklin, The nematode has been reported on blackcurrant, dahlia, lavender, Callistephus, and many other cultivated plants in England Franklin, It also reproduced ritzeabosi multiplied in callus tissues of carrot, tobacco, periwinkle and marigold; the reproduction seemed to be influenced by the concentration of cations in the culture Dolliver et al.