| Titre : |
Inventaire des nématodes phytoparasites associés aux agrumes dans quelques vergers de la Mitidja |
| Type de document : |
texte imprimé |
| Auteurs : |
Yacine Fedila, Auteur ; Maroua Chebboub, Auteur ; K Boudjemaa, Auteur |
| Editeur : |
Tipaza [Algérie] : Centre universitaire Morsli Abdellah - Tipaza- |
| Année de publication : |
2024/2025 |
| Importance : |
p.56 |
| Présentation : |
couv. en noir et blanc ., ill., fig.,tabl. |
| Format : |
30 cm |
| Accompagnement : |
CD |
| Note générale : |
Bibliographie; p47-54.
Annexes: p55-56. |
| Langues : |
Français (fre) |
| Catégories : |
Agronomie
|
| Mots-clés : |
Inventory Nematodes Phytoparasite Citrus Mitidja. |
| Index. décimale : |
630.19 |
| Résumé : |
This study was conducted to inventory phytoparasitic nematodes associated with citrus orchards in the Mitidja region. The survey covered 14 orchards located between the Blida and Algiers provinces from February 1, 2025 to May 1, 2025. A phytosanitary survey using a questionnaire collected data on cultural practices, the phytosanitary status of trees, and its relationship to yield. Nematological analysis of soil samples revealed the presence of five genera of phytoparasitic nematodes: Tylenchulus, Pratylenchus, Ditylenchus, Longidorus, and Radopholus. The Shannon diversity index (H' = 1.17) indicated moderate diversity among the identified nematode genera. However, the genus Tylenchulus was the most frequent, detected in 92% of orchards, followed by Pratylenchus (21%), while other genera were found with frequencies ranging from 7% to 14%. Migratory endoparasites dominated the parasitism types, representing 60% of cases. Symptoms consistent with nematode infestation, such as chlorosis (57.14%) and reduced fruiting and yield decline (50%), were observed at concerning levels. Furthermore, the co-occurrence of insect pests was reported in most orchards, with high rates of aphids (50%), scale insects (42.86%), and citrus leafminers (42.86%). |
Inventaire des nématodes phytoparasites associés aux agrumes dans quelques vergers de la Mitidja [texte imprimé] / Yacine Fedila, Auteur ; Maroua Chebboub, Auteur ; K Boudjemaa, Auteur . - Tipaza [Algérie] : Centre universitaire Morsli Abdellah - Tipaza-, 2024/2025 . - p.56 : couv. en noir et blanc ., ill., fig.,tabl. ; 30 cm + CD. Bibliographie; p47-54.
Annexes: p55-56. Langues : Français ( fre)
| Catégories : |
Agronomie
|
| Mots-clés : |
Inventory Nematodes Phytoparasite Citrus Mitidja. |
| Index. décimale : |
630.19 |
| Résumé : |
This study was conducted to inventory phytoparasitic nematodes associated with citrus orchards in the Mitidja region. The survey covered 14 orchards located between the Blida and Algiers provinces from February 1, 2025 to May 1, 2025. A phytosanitary survey using a questionnaire collected data on cultural practices, the phytosanitary status of trees, and its relationship to yield. Nematological analysis of soil samples revealed the presence of five genera of phytoparasitic nematodes: Tylenchulus, Pratylenchus, Ditylenchus, Longidorus, and Radopholus. The Shannon diversity index (H' = 1.17) indicated moderate diversity among the identified nematode genera. However, the genus Tylenchulus was the most frequent, detected in 92% of orchards, followed by Pratylenchus (21%), while other genera were found with frequencies ranging from 7% to 14%. Migratory endoparasites dominated the parasitism types, representing 60% of cases. Symptoms consistent with nematode infestation, such as chlorosis (57.14%) and reduced fruiting and yield decline (50%), were observed at concerning levels. Furthermore, the co-occurrence of insect pests was reported in most orchards, with high rates of aphids (50%), scale insects (42.86%), and citrus leafminers (42.86%). |
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