ECOLOGICAL STUDIES ON APHIDS INFESTING SOME MEDICINAL AND AROMATIC PLANTS IN EGYPT | ||||
Egyptian Journal of Agricultural Research | ||||
Article 7, Volume 76, Issue 4, December 1998, Page 1451-1458 PDF (2.33 MB) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/ejar.1998.361683 | ||||
![]() | ||||
Authors | ||||
MOHAMED W EL-KORDY1; ATTUA A MOHAMED2; IBRAHIM A. MARZOUK2; HAMED A MOHAMED2 | ||||
1Faculty of Agriculture, El-Azhar University, Cairo, Egypt | ||||
2Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt | ||||
Abstract | ||||
Aphids are one of the most injurious insect pests infesting medicinal and aromatic plants in Egypt. During vegetative stage, coriander was infested with three aphid species, namely Aphis gossypii Glover, Rhopalosiphum maidis Fitch. and Myzus persicae Sulzer, while caraway plants were attacked by only M.persicae. During the flowering and fruiting stages coriander and caraway were infested also with Hyadaphis corianri Das. On the other hand, no aphids were observed on geranium plants. Statistical analysis showed that the temperature had a negative effect on the population of Myzus persicae Sulzer, while relative humidity have a positive effect. Thus, this species perferred low temperature and high humidity. On the contrary, the population density of Hyadaphis coriandri Das and Aphis gossypii Glover, were positively correlated with the temperature, while the relative humidity had a negative effect on the aphid population density. | ||||
Statistics Article View: 80 PDF Download: 119 |
||||