Effect of Foliar Fertilization with Potassium Silicate on some Morphological Characters of Strawberry Leaves Reducing Sucking Insects

Abstract The results showed that foliar fertilization with potassium silicate had a clear effect on increasing the thickness of upper and lower epidermal cuticle layer increased leaf, as after first spray reached 22 microns 11 microns, leaf 194.8 microns. As for second spray, 198.66, 25.33, 16.66 third was characterized by an increase in compared to 206.66 epidermis 28.33 19 respectively. Compared control, paper 190 layers were 10 20 study indicated treatment silicates three sprays superior reducing population density whitefly aphids strawberry plant Mergent variety. average number Bemisia tabaci nymphs 1.16 / 6.66 19.66 leaf. adults Aphis gossypii 0.36 nymphs/leaf 0.27 adults/leaf. For at rate 2.33 nymphs/leaf, 1.91 least density, it 8.16 nymphs/leaf. And adults, 6.33 significant differences. numerical fabae , 0.33 which is most effective sprays. 9.08 5.24 adults/leaf while 4.30 2.16