Evaluation of harmfulness indices of hemipteroid insects invasive species in decorative stands of different introduction-dendrological areas of Belarus

Abstract

Based on the results of perennial surveys of trees and shrubs of ornamental green stands an assessment of the physiological harmlessness, environmental (environmentally determined) and total harmfulness of 14 invasive species of open-living hemipteroid insects in the conditions of 5 areas of woody plants introduction in Belarus is provided. Estimated indicator of physiological harmlessness progressively increased from the Northern, North-Central regions to the South-Central, West and South, which is associated with an increase in the vegetation period of phytophagous fodder plants and the duration period of damage caused by pests. Statistically significant differences in the values of the indicator of environmental and total harmfulness have been found between South/West, South/South-Central, South/North-Central, South/North, West/South-Central, West/North-Central, West/North, South-Central/North-Central and Northern/South-Central regions of introduction. In general, the levels of ecological and total harmfulness of invasive species of openlived hemipteroid insects are higher in the conditions of the Southern and Western than in the North-Central and Northern regions of woody plants introduction.