Make sure you look at the interior of the shrub for dead or damaged sections, not just the outer parts of the shrub.
Fungicides are usually applied directly to the plant, either remaining on the surface or being absorbed into the plant. Make sure you read the instructions on the fungicide carefully to ensure you’re applying the right amount to the plant and following proper safety protocol. [2] X Research source If your boxwood blight is serious, do a quick search online to find the best strategy for fixing your shrubs.
Removing leaves and branches that have fallen off will allow more light and air to reach the middle of the shrub.
To cut down as far as you see greenery, look at the branch and see where the leaves are growing on it. Only cut as far down as the greenery is growing. Overgrown boxwoods become super thick, not allowing light or air to reach the middle of the shrub, which results in an unhealthy plant. On boxwoods that have not been trimmed in several years, decrease the size of the shrub over many growing seasons. Only cut ⅓ of the total shrub so it stays healthy.
Many times, the stems sticking out will be new growth showing lighter green colored leaves.
In this case, some of your branches may be leafless when you cut them back. Remember not to cut off more than one-third of the shrub each growing season. Pruning loppers have a longer handle and are great for more heavy-duty pruning.
