Mixtures of and methods utilizing cacti and cacti parts such as leaves, stalk, stump and fruit skin are used to fertilize all types of cultivated and wild plants and as organic pesticides. Such mixtures and methods are also used to rejuvenate, regenerate, enhance and regulate growth in plants based on cacti plant and parts of cacti plant. Particularly, these materials and methods use the content of elliptical stalks, thorny leaves (opuntia) growing out of the stalks and skins of cacti fruits for fertilizing and rehabilitating plants and as pesticides under moderate or harsh climates or conditions of growth.