پایش آفات درختان کهور ایرانی در ناحیه رویشی صحارا سندی ایران

The results of surveys and monitoring of pests in the stations of Prosopis cinerera trees in the provinces of the region Sahara- Sandy (Busher, Khuzestan, Hormozgan, South Kerman and Sistan & Baluchistan) showed that the most serious and important pest of these trees is the seed beetle Caryedon serratus which, by feeding on seeds and peds causes the loss of germination and threatens the reproduction of these trees.
The another important pest are Scolytidae bark beetles, which feed and create numerous holes and tunnels in the cambium, causing withering, deterioration and drying of trees. Also, weevil Cosmogaster sp. By activity under the tree bark and in the cambium area and creating larval tunnels, cause weakness and drying of trees. The population fluctuations of the C. serratus and the level of damage in P. cineraria habitats showed that the highest percentage of damage was obtained with 82.50% in Hormozgan province on the year 2021 and the lowest with 1% in the South of Kerman on the year 2020. The average damage of seed beetle during the four years of the monitoring in this research project showed that the highest damage was in Hormozgan province with 67.17% and the lowest in southern Kerman with 1.15%.
The monitoring carried out between the years 2018 until 2021, showed that the population of bark beetles has greatly increased and caused a lot of damages. The highest percentage of damage with this pest was found with 97.50% on the year 2021 in Hormozgan province and the lowest with 0.01% on the year 2020 in Bushehr province. the average infestation of bark beetles during the four years of the research project showed that the highest infestation was in Hormozgan province with 73.50% and the lowest in Bushehr province with 0.03%. The results of monitoring of the Cosmogaster sp. weevil and the level of damage P. cineraria habitats from the years 2018 until 2021 in Sistan & Baluchistan Province showed that the highest percentage of damage was 15% on the year 2021 and the lowest was 10% in the year 2018.