Compositions and method for controlling fungal disease in plants
US5965545A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1997 |
| Grant date | Oct 12, 1999 |
| Priority date | — |
| Expiry date | Sep 12, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N43/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Materials comprised of linked, repeat units of beta glucosamine, having a molecular weight in the range of 400 to 10,000 are highly effective in controlling fungus infestation in agricultural crops, both pre-harvest and post-harvest. The antifungal material is preferably combined with a mildly acidic solvent to produce a composition having a slightly acidic, or near neutral pH. When the antifungal material is combined with a chitosan matrix, a synergistic interaction occurs which greatly enhances the effect of the resultant composition. Also disclosed is a method for producing a chitin or chitosan based material which will dissolve in water having a neutral pH.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.