Abstract

Spider mites are considered one of the major pests of green spaces, in Iran and other parts of the world, which cause severe damage to ornamental plants in Tehran. Phytoseiid mites are also known as the most important natural enemies of spider mite in many habitats. In order to study mite pests and their natural enemies in green spaces of performed on 17 host plant species after observing mite presence or signs of pest as follows: Family Tertranychidae [1- Eutetranychus sp.; 2- Eutetranychus africanus Meyer, 1987; 3- Tetranychus sp.; 4- Tetranychus ludeni Zacher, 1913; 5- Tetranychus urticae Family Tenuipalpidae [1- Cenopalpus sp.; 2- Tenuipalpus Family Phytoseiidae [Typhlodromus The results showed that the highest infestation rates to tetranychid mite were found on Morus sp. (23.19%), Ulmus sp. (21.53%), Robinia sp. (20.18%), and the lowest one were found on Populus sp. (0.15%), Damascena sp. and Juglans sp. (0.3%). Chesneya astragalina, Pinus sp. and Crataegus sp. showed no infection of tetranychid mites. Maximum contamination by tenuipalpid mites was found on Platanus sp. (59.48%), while Ailanthus sp. and Quercus sp. (0.43%) showed minimum contamination. Acer sp., Populus sp., Damascena sp. and Juglans sp. did not show any contamination. Totally, 10 plants were considered hosts of Cenopalpus sp. and 5 plants were considered hosts of Tenuipalpus sp. The highest numbers of Typhlodromus sp. were counted on Morus sp. (30.13%) and Platanus sp. (29.42%), and the lowest numbers of this mite were observed on Vitis sp. and Ailanthus sp. (0.68%). There was not found any phytoseiid mite on Acer sp., Populus sp., Damascena sp., Juglans sp., Chesneya astragalina and Pinus sp.