Root Guard is a product with a high content of technological innovation, combining nutritional and growth promoting elements along with the presence of the Trichoderma harzianum microorganism from rhizosphere. Different experimental applications have proved that such microorganism is able to establish a mutual connection with the plant and to limit the growth of pathogens through hyperparasitism. The nutritional component of this product (amino acids, humic acids and seaweeds Ascophyllum nodosum) provides a biostimulant effect that leads together to a root development and a better absorption of all nutritional elements, resulting in a balanced vegetative development. Its main effects give a higher number of roots growing healthier and more vigorous. Root Guard can be applied in any period of the year, provided that the soil temperature is not too low. Spring and autumn applications are favoured, since the root development is at its best phase.