Main species of grasshoppers (Tettigoniidae), influence of anthropogenic factors on changes of species and density of distribution

More than 50 grasshopper species (Tettigoniidae) that feed on plant and non-plant substrates are registered in Uzbekistan. Some 4 to 5 their species can cause significant damage to agricultural crops. During last years both a number increase, and crop damage are observed on and around crop fields and orchards, on shores of irrigation and drainage canals and other wastelands in Surxondaryo, Qashqadaryo, Jizzakh, Sirdaryo and Tashkent regions. For systematization of data and collection of material during 2009-2017. Routine inspections and collection of insect samples were carried out in Qibray, Bostanliq, Yangiyol, Chinaz, Mirzachul, Dustlik, Pakhtakor and other districts. All information is systematized and presented in a generalized form. As a result, habitats were established for 12 species of grasshoppers. There is an increase in the number of individuals of the grasshopper in the study area and, accordingly, the damage caused by these insects to agricultural crops increases.