Soil that’s coated with sterile other garden debris and leaf litter is an source for parasite diseases started. From the shaded garden, this situation spells double trouble.
The cool conditions are the perfect environment for the development of many fungus diseases. The gardener may prevent botrytis on azaleas blight on camellias, and problems such as mildew by keeping an even layer and removing the rest of the garden debris. Replace it with new material and it may help to remove the mulch each year, in case you have troubles. Cool places are also the preferred residence of snails and slugs. To keep these pests under control, minimize the places they hide and utilize snail and slug bait an outbreak occurs.
If despite your best efforts you repeatedly have problems with fungus diseases, use one of those fungicides available at your nursery. Before there is an issue conscious for the ideal control of several fungus diseases the treatment should be applied. On the other hand, other fungus diseases like mold can be controlled with insistent treatments either before or after they. Ask your community nursery or extension agent for information regarding time and the proper fungicide to employ it. Read and follow the label directions for each particular use.