METHOD TO DETERMINE LEVELS AND THRESHOLDS OF HAZARD OF SOIL PHYTOPHAGES

摘要

A method to determine the levels and thresholds of the hazard of soil phytophages is based on determining the nutritional requirements of the insects according to the level of energy exchange thereof at temperature of 20 DEGREE C. The cumulative nutritional need of population of individuals of species is determined at different stages of the ontogenesis taking into consideration the part of plant nutrition of a pest.