Математическое моделирование взаимосвязи погодно-климатических факторов и динамики численности популяции Cephus pygmaeus L. и collyria coxator Vill. В разные фазы онтогенеза озимой пшеницы в Ставропольском крае

Eight year old body of empirical data on the population dynamics of an ordinary summer wheat stem sawfly and its entomophage calls in different phases of development of winter wheat (booting, earing, flowering, milk ripeness, waxy ripeness) analyzed using statistical methods (regression and correlation analyzes) and using basic computer program " Usage -6", which allowed to mathematically describe the populations of insects, weather and climatic conditions in the Stavropol region. The quantitative relationship between the size of populations and its phytophage yaytseparazitom in the form of plots and empirical equations in different phases of development of winter wheat during the period from 1998-2005. Shows the combined effect of climatic factors on the development of insect populations in the form of surface equations linking populations with temperature and amount of precipitation in different periods of ontogenesis of winter wheat. According to the results of mathematical modeling of the proposed changes the dynamics of population ordinary stem sawfly and its entomophage calls in different periods of ontogenesis of winter wheat and climatic factors in the form of empirical equations of second order for the Stavropol Territory.