The studies evaluated the usefulness of concentrated beetroot juice, chokeberry and beetroot powder as potential tracers of spray deposits as well as their impact on the ability of conidia germination of Isaria fumosorosea and Lecanicillium lecanii. Aqueous solutions of beetroot and chokeberry products affected the physical properties of the spray liquid. The chokeberry juice concentrate at concentration of 2% did not reduced significantly the static surface tension and can be useful as tracer in studies on the quality of spraying. Unfortunately, the chokeberry juice concentrate can be low compatible in mixtures with some adjuvants. Beetroot products lowered significantly static surface tension. Beetroot juice concentrate at a concentration of 2-4% allowed to create stable mixtures with adjuvants and did not influence significantly spreading of droplet. Conidia germination capacity of entomopathogenic fungi was not significantly reduced in solutions of juice concentrates or adjuvants. The mixture of adjuvant and juice concentrate raised the risk of a reduction in ability of conidia germination.