ECOLOGICAL STUDIES ON APHIDS INFESTING SOME MEDICINAL AND AROMATIC PLANTS IN EGYPT
EL-KORDY, M., MOHAMED, A., MARZOUK, I., MOHAMED, H. (1998). ECOLOGICAL STUDIES ON APHIDS INFESTING SOME MEDICINAL AND AROMATIC PLANTS IN EGYPT. EKB Journal Management System, 76(4), 1451-1458. doi: 10.21608/ejar.1998.361683
MOHAMED W EL-KORDY; ATTUA A MOHAMED; IBRAHIM A. MARZOUK; HAMED A MOHAMED. "ECOLOGICAL STUDIES ON APHIDS INFESTING SOME MEDICINAL AND AROMATIC PLANTS IN EGYPT". EKB Journal Management System, 76, 4, 1998, 1451-1458. doi: 10.21608/ejar.1998.361683
EL-KORDY, M., MOHAMED, A., MARZOUK, I., MOHAMED, H. (1998). 'ECOLOGICAL STUDIES ON APHIDS INFESTING SOME MEDICINAL AND AROMATIC PLANTS IN EGYPT', EKB Journal Management System, 76(4), pp. 1451-1458. doi: 10.21608/ejar.1998.361683
EL-KORDY, M., MOHAMED, A., MARZOUK, I., MOHAMED, H. ECOLOGICAL STUDIES ON APHIDS INFESTING SOME MEDICINAL AND AROMATIC PLANTS IN EGYPT. EKB Journal Management System, 1998; 76(4): 1451-1458. doi: 10.21608/ejar.1998.361683

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, Pages 1451-1458    PDF (2.33 M)
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.
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