A.M. AL-BELTAGY, A.M. SALEM *, MA. ELHAMAKY** R. ABU-AIANA AND M.E. OMAR*
Plant Prot. Res. Station, Alexandria
* Sakha Res. Station, Kafr El-Sheikh , Egypt
** Plant Prot. Res. Institute, Dokki, Giza , Egypt

ABSTRACT

Certain recommended insecticides and pink bollworm pheromone were applied in two locations (Abaadia and Elsafasif at Al- Behira Governorate) against pink boliworm. The side effect of these treatments was studied on same piercing sucking insects (aphid Aphis gossypii (Glov.), jassid Empoasca lybica (Deberg.) and whitefly Bemisia tabaci (Genn.), in 1991 cotton season. The three insects had different time appearance to population peaks (aphid on Aug. 19, jassid on July 30 and whitefly on Sept. 3, 1991). There was a significant difference between aphid population density under untreated area and both the pheromone and insecticide areas. There was no significant differences between the three insects population under pheromone and insecticide treated areas.

Key Words: Aphid, Jassid, Whitefly, Pink Bollworm Pheromone.