Caragana arborescens are popularly known as the Siberian pea tree.

1. Cut the shrub or small tree back to the ground, leaving only about 6 inches of its trunk protruding above ground. You can make a single cut through the trunk, using a chainsaw or pruning saw.

How to Kill a Caragana Bush Step 1. Cut down the caragana bush with pruning shears until only a 3-inch section of stems remains. Step 2. Burn the tip of the stems with a hand-held propane torch to prevent regrowth from the stems. Step 3. Apply an herbicide, such as glyphosate or triclopyr, to the. Aug 22, All necessary for Pest Control shrubhauling.bar to Kill a Caragana Bush. Caragana bushes are shrubs or small trees, originally from.

variable. After repeated prescribed burns, the stump of the tree may resprout but will eventually become weakened. Chemical - Glyphosate and triclopyr can be effective in controlling Caragana. Cut-stump methods can be effective if the trunk is cut as close to the ground as possible and herbicides are immediately applied to the cut surface of the shrubhauling.bar Size: KB. Water the Siberian peashrub heavily the day before pruning it. Run a garden hose at the base of the trunk until the soil feels wet at a depth of 3 inches.

Let the water soak in overnight to prevent. In mid-summer you can shape the new growth with hedge shears. If your caragana hedge is growing too large, trim it severely in late summer, removing most of the foliage. This reduces the energy the plant can store in its roots to produce new growth in spring. Advertisement. Nov 09, Caragana was introduced by settlers in the prairie region during the movement of Europeans across the continent.

It was used as shelter belts around homesteads, because of the heavy winds in the prairies. This bush became established over decades in many areas of Alberta, Manitoba and Saskatchewan. This bush has become such a problem that it.