[Fungicidal properties of the nanosystems of silkworm (Bombyx mor) chitosan with copper ions].

The fungicidal activity of some chitosan samples and of its nanostructured systems with copper was studied. The samples of Bombyx mori chitosan and its nanostructured systems with copper were found to inhibit growth and development of phytopathogenic fungi Fusarium solani 169 and Verticillium dahlie 57. The growth inhibition zone was of considerable size (22 to 60 mm).