Polymeric composite-pesticide plugs and related methods
US11116209B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2018 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Mar 13, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B27/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The disclosure relates to a slow-release biodegradable composite pesticide plug that can be used for trunk injection delivery of pesticides to protect woody plants such as trees (e.g., fruit trees) against pests. The composite pesticide plug generally includes a thermoplastic polymer matrix with a water-soluble thermoplastic polymer component, a cellulosic reinforcement, and a pesticide or other active ingredient. After injection into the tree trunk, the composite pesticide plug provides a uniform, relatively consistent dose of pesticide or other active ingredient to all parts of the tree throughout the growing season, thus reducing waste of material and cost. The biodegradable nature of the composite plug also enhances the healing of the tree after injection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.