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العنوان
Studies on red palm weevil, rhynchophorus ferrugineus (olivier) (coleoptera: curculionidae) /
المؤلف
Abd El-Hamid, Khaled Mohamed.
هيئة الاعداد
باحث / Khaled Mohmed Abd El-Hamid
مشرف / Samir Saleh Awad-Alla
مشرف / Adel Hassan Abd El-Salam
باحث / Khaled Mohmed Abd El-Hamid
الموضوع
red palm weevil.
تاريخ النشر
2009.
عدد الصفحات
162 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
علوم الحشرات
تاريخ الإجازة
1/1/2012
مكان الإجازة
جامعة المنصورة - كلية الزراعة - Department of Economic Entomology.
الفهرس
Only 14 pages are availabe for public view

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Abstract

The palm, Phoenix dactylifera (L.) is the most common and widely cultivated plant in the arid regions of the Middle East and North Africa. The palm crop in the Middle East is now under threat due to infestation by the red palm weevil (RPW), Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae) The red palm weevil is one of the most serious palm pests in recent years in the Middle East countries and has caused a great damage. The RPW was discovered attacking palms in Sharquiya region of Egypt in 1992. Since its discovery, the weevil has expanded its range very rapidly. By 1995, it had infested over 10,000 farms. The larval stage of this insect feed within the trunk of palms and this behavior frequently kills the trees. The larvae can only bore in soft tissue; for example, in the tree crown, upper part of the trunk and at the base of petioles. They can also bore into the trunk of young palms and the decaying tissue of dying palms. The pest affects stems and growing points. It is very difficult to detect the RPW in the early stages of infestation. Generally, it is detected only after the palm has been severely damaged. Therefore, the objectives of the current study were to: 1- To evaluate a thorough survey of RPW infestation in different Governorates to in order provide knowledge about the susceptibility of different date palm cultivars to infestation, place of infestation on the stem, and most susceptible age group of the date palm to gather certain information about the pest incidence and to describe the occurrence of RPW. 2- To determine the effect of infestation of the date palm trees with different larval densities in different heights on the occurrence of different stages of RPW. 3- To study some biological attributes of the RPW on certain palm cultivars, determine the developmental times of insect stages, estimate the longevity, fecundity and egg viability and to calculate life table parameters of this insect.