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Istituto Agronomico Mediterraneo di Bari (IAMB) 2012

Management of some economic olive insect pests with emphasis on their biological control in two agro-ecosystems in Egypt

El-Kenawy, Ahmed

Titre : Management of some economic olive insect pests with emphasis on their biological control in two agro-ecosystems in Egypt

Auteur : El-Kenawy, Ahmed

Etablissement de soutenance : Istituto Agronomico Mediterraneo di Bari (IAMB) - Centre international de hautes études agronomiques méditerranéennes (CIHEAM)

Diplôme : Master of science : Integrated pest management of Mediterranean fruit crops (2012)

Résumé
The Mediterranean basin is the largest olive production area worldwide ; more than 125 arthropod species attack olive plants and cause quantitative and qualitative losses of yield. This study aimed to survey the economic olive insect pests in Egypt and to evaluate the role of bio-control agents in suppressing their populations in olive orchards. The survey was carried out at two olive orchards, located at two different agro-ecosystems (Middle-Egypt and Coastal region). Samples were collected weekly ; number of pests’ individuals and rate of infestation/ sample/ date/ site /leaf (shoot) was counted and recorded. Parasitoid species found associated with the pests were identified and their percentages of parasitism were estimated. The survey revealed the presence of five insect species ; Euphyllura straminea, Phloeotribus scarabaeoides, Saissetia oleae, Prays oleae and Palpita unionalis on leaves and shoots of olive trees. The month of May revealed the highest populations for the five pest species in Egypt. Six hymenopteran parasitoid species, 4 primary and 2 secondary species were recorded associated with the first 3 pests. Furthermore, agricultural practices showed a great impact on suppressing the insect pests’ populations in Egyptian olive orchards.

Mots-clés : EGYPT OLIVES PARASITES PEST INSECTS

Présentation (IAMB Library)

Page publiée le 22 juin 2014, mise à jour le 7 décembre 2017