The ginkgo tree, also known as the maidenhair fern or the living fossil tree, is a close relation of trees that have existed for over 200 million years. In this time, the ginkgo has been faced with its fair share of pests and insects, and is widely known for its resistance to disease and insects.
Pests of the Ginkgo
The Ginkgo is not immune to all pests, however, including foliage eating caterpillars which eat leaves of the ginkgo tree.
More serious is the nematode which induces root knot. Nematodes are small roundworms which feed off of plant roots, and cause cankers known as "root knot."
Caterpillars should be got rid of by using soap and water. Proper pruning, fertilization and watering will help in preventing the caterpillar from attacking the plant, as can birds and other natural predators.
Nematodes are more difficult to manage as they are extremely common, microscopic pests. They are easily spread from garden to garden, through composing and animal feces. The best defence with these is prevention, including sanitation (preventing nematodes from entering the garden by avoiding diseased plants, not moving infected plants, and not allowing water to flow from plants with nematodes to other parts of the garden.