|Vegetative E. decumbens in the greenhouse|
|Willamette daisy capitula|
|Eugene fire crew burns a treatment plot near Fern Ridge|
Another round of experiments is currently being conducted to determine the best management practices for E. decumbens populations. Threats that must be managed include encroachment of shrubby and woody species and invasion by non-native forbs and grasses. Initial experiments tested the effects of the common management activities of mowing, grazing, and burning, but in 2011 additional treatment plots were created to test other options such as carbon addition (pouring sugar on plots), use of grass specific herbicide, and application of glyphosate. An additional set of treatment plots has been established this year to increase data collection locations. IAE has grown over 1800 E. decumbens individuals that will be outplanted this month. Propagation of this species required allowing 16 weeks of cold stratification in germination boxes, followed by one week in greenhouse conditions before the seeds were carefully transplanted into containers and tended to in the greenhouse for several months. Although the process is intensive, IAE has been very successful at growing robust plants for use in experiments.
|(L) Seeds in germination boxes, (R) Plants growing in greenhouse|