Application of the Hassell model for predicting the population density of the golden potato nematode
In this paper we estimate the dynamics of Globodera rostochiensis population at 3 different locations in Kaluga region of RF using empirical datasets on the period 1979-1993. Estimations have been carried out through nonlinear least squares (NLS). The estimation criterion is R-sq. The results of the study reveals that the Hassel’s model is a good description of population dynamics for all 3 locations. This model as the most general one in the class of 1-period non-overlapping generations models may be further used for predictions of population densities of Globodera rostochiensis, for estimations of population stabilisation period length and the time of introduction of Globodera rostochiensis into the soil.