Ecological studies on the red-scale insect, Aonidiella aurantii (Maskell) (Homoptera: Diaspididae) infesting Lemon trees at Aswan Governorate | ||
| Aswan University Journal of Environmental Studies | ||
| Article 4, Volume 5, Issue 3, September 2024, Pages 308-321 PDF (713.14 K) | ||
| Document Type: Original Research | ||
| DOI: 10.21608/aujes.2024.290993.1245 | ||
| Authors | ||
| Shaimaa Yousef1; Islam Elzoghby2; Doaa Elwy Othman* 3 | ||
| 12Plant Protection Dept., Fac. of Agric. and Natural Resources, Aswan Univ., Egypt. | ||
| 2Plant Protection Department, Faculty of Agriculture and Natural Resources,Aswan University. | ||
| 3College of Agriculture and Natural Resources,Aswan University, Plant protection | ||
| Abstract | ||
| The study was conducted on the special farm in Kom Ombo – Aswan Governorate, from the 1st of March 2019 until the 15th of February 2021, to study the population dynamic of red scale insect infesting the lemon trees. The study aimed to study the population density and infestation of the red scale on the Lemon’s trees Under the Aswan Governorate conditions. The results showed that the maximum population density was recorded in autumn (116.19 and 111.84) while the minimum numbers were recorded in winter (45.82 and 61. 58) in the first and second years, respectively. The highest Rate of Monthly variation population (R.M.V.P.) value was achieved during August of both seasons. Also, data shows there were 4 insect generations in the year; the maximum number of insects was recorded in the third generation in the two successive years. Data of the both seasons revealed that the most effective weather variables were maximum temperature and dew point. | ||
| Keywords | ||
| Population density; red scale insect; Weather factor; Rate of Monthly Variation; Field generation | ||
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