The article presents promising types of bioindicators in agroecosystems – forest shelterbelts, which are closely adjacent to crops and are often themselves contaminated due to the ingress of mineral fertilizers and pesticides onto the leaves or into the sub-stem soil layer, and during mechanical tillage – undergo significant pollination. Our observations among the tree and shrub vegetation of the main shelterbelts revealed necrosis on the leaves of Tatar honeysuckle plants in the amount of 1-12% of leaves, common maple – on 12-30% of leaves, common ash – on 12-15% of leaves. On the leaves of trees of auxiliary shelterbelts, necrosis was widespread on 15% of holm oak leaves and 5-8% of common ash leaves. The surface area of necrosis development on the leaves of the tree and shrub vegetation of the main shelterbelts was: in Tatar honeysuckle plants – 4-20%, in common maple plants – 7-60%, in common ash plants – 7-12%. In plants of auxiliary shelterbelts, the proportion of necrosis on the leaf of common oak plants was 15%, and in common ash – 5-12%. The spread of spotting on the tree-shrub vegetation of the main shelterbelts was detected on the leaves of common ash in the amount of 35% of the total volume of leaves on the tree crown, on the leaves of common maple – in the amount of 10-20% and on the leaves of white acacia – in the amount of 30% of the total volume of leaves of the crown of one tree. In the trees of the auxiliary shelterbelts, the spread of spotting was detected on 60% of the leaves of common oak, common maple and common ash. The proportion of the surface of one common ash leaf with spotting was about 20%, common maple – 40-60%, white acacia – 30%. In the trees of the auxiliary shelterbelts, the proportion of the surface of a common oak leaf with spotting was 85%, common maple and common ash – 60%. The manifestation of the general degradation of tree-shrub-herbaceous vegetation of the main shelterbelts in the studied area was 7-18%, and of the auxiliary shelterbelts – 7-15%.