| 摘要 |
<p>A plant guard 1 is formed of a physical barrier the barrier being associated with means to release chemical compositions, such as insecticides, fertilisers, mycorrhizae etc.. The physical barrier may be a tubular structure 2 having at least one open end 3 that may be positioned around a plant stem or tree trunk. The tubular structure may be an elongate tube with inner 4 and outer 5 walls with a space between the walls. Inserts 6 may be positioned in the space between the inner and outer walls, the insert forming one or more containers in which the chemical composition may be held. The plant guard may be expandable and made of stretchy material or concertina type structure. The plant guard may include a pest monitoring tool or indicators to provide information about the guard. The guard may be formed of a biodegradable material.</p> |
