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<br />22 | P a g e <br /> <br /> <br />Eradication is often not practical or attainable. QB may aim for eradication <br />of a target species in areas where infestations are caught very early on <br />after introduction and are therefore relatively small in size and not widely <br />distributed throughout the area. When treating for eradication, the field <br />goal is to kill 100% of the plants in a given infestation. <br /> <br />2.3.3 Containment <br />Containment refers to the act of treating an established weed infestation <br />around the boundaries, to avoid the continued spread of the infestation. <br /> <br />Containment is usually the best option when large landscapes or <br />watersheds are very heavily infested to the point where regaining the lost <br />areas would be impractical. Here, managing parties would set the goal to <br />keep the target species from spreading beyond the current borders. When <br />containment is the goal, resources are focused on treating the perimeter <br />of the infested area and inward, to the distance that the target species <br />would be expected to spread. The goal is to kill 100% of the weeds within <br />a defined perimeter only. The infested areas within that perimeter may be <br />left alone, or managed with another management level goal. In other <br />words, within the confinement boundary, the infestation may be treated for <br />reduction, maintenance or be left untreated. <br /> <br />2.3.4 Reduction <br />Reduction refers to the act of treating an established weed infestation with <br />the goal of reducing the density and numbers of the target specie(s). <br />The majority of QB treatments are done with the goal of reducing <br />infestations. Reduction efforts aim to kill 80% of the weeds within a <br />treatment area. <br /> <br />2.3.5 Maintenance <br />Maintenance refers to the act of treating an established weed infestation <br />with the goal of maintaining the density and size of the infestation. <br />In addition to reduction, QB manages for maintenance quite often. <br />Maintenance efforts aim to kill 70% of the weeds within a treatment area. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />