Plant Societies Botanical Gardens Hort. The best approach to garden-wide disease prevention is to follow some general gardening practices that help prevent all disease.
Compost benefits the garden in many ways, and one of the benefits it offers is disease control.
Humus helps hold nutrients in the soil and release them to plants as they need them. It also contains beneficial microorganisms that enhance plant growth. They decompose very slowly and invite rodents. Also, do not compost cat or dog waste, as that can transmit parasites. In order for compost to really heat up and decompose at an accelerated rate, a proper ratio of carbon to nitrogen needs to be present.