| 摘要 |
<p>A tree treatment capsule is disclosed as including a plastic container (10) having a shank (11) with an internal cavity (14) for containing therein a chemical agent (2) and a head (12) integrally formed with the shank portion (11). According to a first embodiment, the shank has a plurality of scorings (20) which are formed in the exterior surface thereof and extend lengthwise of the shank. The scorings (20) allow the shank (11) to be broken so that when an impact force is applied to the head to move the shank towards the plastic plug (30), the plastic plug (30) expands and breaks the shank (11) along the scorings (20) into tongues to form slits between the tongues. According to a second embodiment, the plastic plug (30) is provided to sealingly close the cavity. The shank has a plurality of slots (20A) which are formed in the exterior surface thereof and extend lengthwise of the shank. The slots allow the shank to be broken so that when an impact force is applied to the head to move the heads towards the plastic plug, the plastic plug expands and breaks the shank along the slots into strips to form passages between the strips. The slits or passages allow the chemical agent to pass from the cavity of the capsule through the passages and mix with sap of the tree.</p> |
