| abstract |
The object of the invention is a hydroxyapatite vehicle, corresponding to the formula: Ca(10-x)Mx(PO4)(6-y)(CO3)y(OH)2 in which: M is selected from Cu, Mg , Zn, Pb, Cd, Ba, K, Mn, Mo, Fe, Ag, B, Se or a combination of at least two such elements; - x is between 0 and 2, preferably between 0 and 1, more preferably between 0 and 0.8, even more preferably between 0.02 and 0.05; - y is between 0 and 2, preferably between 0 and 1, more preferably between 0.002 and 0.030. Hydroxyapatite is a carrier of a bioactive substance chosen from a metal ion selected from Cu, Zn, S, Mn, Mg, K, Fe, B, Mo, Se and/or an extract of plant origin. Bioactive substances are active in the treatment of vascular diseases of plants, in particular: grapevine yellowing (caused by grapevine phytoplasma), kiwi bacterial canker (caused by Pseudomonas syringae), olive tree decline syndrome (caused by by Xylella fastidiosa) and bacterial Citrus. Canker disease (caused by Xanthomonas axonopodis). (Automatic translation with Google Translate, without legal value) |