Seasonal Population Dynamics and Harmfulness of Wheat Thrips in Agrocenoses of Grain Crops

The purpose of the study was to identify forage plants and specialized entomophages wheat thrips in agrocenoses winter spring grain crops cultivated Samara region. highest number adult pests noted (2365.0 ind./100 strokes), lowest barley (565.0 strokes). Egg laying by thrip females occurred on all crops. Larvae were ears wheat, triticale, barley, with exception barley. During research, two identified: striped predatory thrips. research years, largest numbers earing phase (90 strokes) booting phase—75 strokes 40 strokes, respectively. damage varied from 55.3% 69.2% higher than (38.5–64%). With a certain ratio thrips, it is possible refuse use insecticides cultivation