An evaluation of Chondrostereum purpureum for the control of Sitka alder found in a forty year-old NSR stand (ESSFwc1)
Project number: EP 1135.06
District: Selkirk Forest District
- To document the effectiveness of two formulations of Chondrostereum purpureum for controlling Sitka alder in a wet alder complex
- To determine if creating patches in alder for regeneration of Engelmann spruce lends itself to the silvicultural management of cutblocks occupied by Sitka alder thickets
- To examine the spatial influence of Sitka alder on light and on growth of Engelmann spruce after they have been planted in the treatment plots
The study is a completely randomized design with four treatments, replicated five times.
There are four treatments:
- Cut only
- Cutting repeated every second year
- Cutting followed by application of C. purpureum paste formulation to the cut stumps
- Cutting followed by application of C. purpureum peat formulation to the cut stumps
A fifth treatment using Release® herbicide was considered prior to establishment.
- Twenty 10 x 10 m plots are individually located through the study area
- Treatments are randomly applied to plots that are surrounded by a 5 m buffer
- Plots and buffers are planted with Engelmann spruce on a 2 x 2 m spacing
- Alder clumps are individually tagged
- All planted seedlings are individually tagged
- 1999 preliminary plot layout
- 2000 final plot layout
- 2000 brushing and planting in mid-June to mid-July
- 2000 seedling tagging and measurements, light measurements in September
- 2001 first year seedling and vegetation assessments
Conlin, T., 2002. An Evaluation of Two Chondrostereum purpureum Carrier Formulations Used for the Control of Sitka Alder in a 41-year-old Not Satisfactorily Restocked Stand (ESSFwc1), Kootenay Forest District, Nelson Forest Region. BC Min. of For., Research Branch, Extension Note 61.