The quality of the peach fruit depends on the purpose of future products. Nowadays, packaging sells the product, which is in this case the colour of the fruit peel. This led to the ability to manipulate the light spectrum, i.e. the colour of fruits in fruit trees. To this end, photo-selective nets of different colours, mesh sizes and abilities of releasing a certain spectrum of light into the plantation have emerged. In practice, this means a pre-planned start of the harvest and product release on the market. In this way, time, resources and products for plant protection are saved. As a benchmark for quality in the work, some average values have been included, which are: fruit weight, firmness, soluble solids, total acid content, content relationship soluble solids and total acidity and yield. For this study, the fruits of peach cv. ‘Suncrest' in the location Vratišinec near Čakovec were used. The trees were covered with PVC Agritenax nets – yellow, white and red. The fruit of a total of 36 peach trees was sampled. The plantation served as a reliable indicator which is evidenced by laboratory and statistical analysis of the results shown in detail and explained in this paper. Since it is a new technology, we thoroughly investigated all of the positive and negative sides.