1. Fusarium wilt: this disease will affect the branches, not the roots. In serious cases, it may cause the whole plant to be infected. In order to cure this disease, it is more difficult to remove the soil at the root, then determine the necrotic part of the branch, cut off this part and replace it with new soil.
2. Powdery mildew: the disease will damage the leaves and flowers, resulting in a layer of white powder on the infected part, which will not only affect the ornamental, but also cause damage to plant growth. After the disease is found, the diseased leaves shall be removed in time, and then the sterilized drugs shall be sprayed.
3. Virus disease: this disease will lead to yellow spots on the leaves, lead to flower opening deformity, and seriously affect the ornamental value. In case of this disease, it is necessary to spray with acetic acid solution.
1. Starscream: this pest will gather in large quantities, attach to the back of the leaves, suck the juice inside, cause the leaves to lack of water and dry up, and finally lead to falling. Remove the infected leaves in time, and spray the larch cream for treatment.
2. Diamondback moth: this kind of pest will also bite the leaves and affect the overall growth. When the larva appears, it can spray dichlorvos and ICAS emulsion.
