Using Two Types of Foliar and Root Fertilizers, in Both Normal and Nano Particles, to Reduce the Infection of Apple Trees with the Lace Bug Stephanitis pyri (Fabricius)

Abstract

The results indicated the important role of the fertilization process in both nano and regular forms in protecting apple trees from infection with the embroidered reticulate bug, as the rate of leaves infected with the insect in the comparison treatment was 11.33, 4.78 and 9.75 leaves/tree for the three cultivars, respectively. Lace bug Stephanitis pyri (Fabricius). The mean of the trees treated with Terra Sorb was 0.67 and 0.78 leaf/tree for the nano and regular formulas, respectively, and the trees treated with Headland foliar fertilizer were 0.22 and 0.78 leaf/tree for the nano and regular formula, respectively. The root fertilizer PRESTIGE was 0.44 and 0.11 leaves/tree in the nano and regular forms, respectively, and the trees treated with root fertilizer Superior 0.33 and 0.56 leaves/tree in the regular and nano forms. These percentages represent the average of the three cultivars. The study also showed that there were significant differences between the trees treated with fertilizers in both nano and regular forms, compared to the comparison treatment in which water was used, in some characteristics and measurements such as leaf area, cuticle thickness on the lower surface of the leaf, and chlorophyll content of the leaves.