Managing Sitobion avenae Fabricius (1775) by Rosmarinus officinalis and Artemisia herba-alba aqueous extracts in soft wheat field

Plants with insecticidal effects are becoming more and more important and used in biological management programs instead of chemicals. In fact, aqueous extracts of the two aromatic plants leaves which are the rosemary Rosmarinus officinalis and the white wormwood Artemisia herba-alba, were tested against the cereal aphid Sitobion avenae with 2.5%, 5% and 10% doses compared with a reference product and a control. Consequently, the two aqueous extracts of the two plants tested were efficient against aphids. The aphid population density was significantly reduced with mortality rates reaching 67.43% for rosemary and 51.79% for white wormwood. The highest doses were exhibited as the more lethal for aphids. It is noticed that the aqueous extracts could be more efficient if the aphids’ population densities were lower.