Résumé:
The use of chemical products to fight against insects raises several concerns related to the environment,
human health, non-target species and development of resistant pest populations. The use of bio-pesticides
may reduce the risks of pests and safeguard biodiversity. This experiment was conducted with the
objective to study the effect of aqueous plant extracts from the southeast region of Algeria (Zygophyllum
album L, Cotula cinerea Del and Limoniatrum guyonianum Del) on the mortality of the date palm mite
(Oligonychus afrasiaticus).
The trial was conducted at the Laboratory of Plant Protection of INRAA. The five doses (1%, 2%, 3%,
4%, and 5%) were tested on adults of phytophagous. The results show that the extracts of plants and C.
cinerae and L. guyonianum do not show an effect on the pest. Unlike, Z. album showed a very significant
effect on the mite by a mortality rate of 76%.
