Preventing the occurrence of pests and diseases is the top priority in the management of perennial flowers. The occurrence and spread of pests and diseases can lightly affect the normal growth and ornamental effect of the plants, and severely, it can cause the flowers to wither and die.Preventing the occurrence of pests and diseases is the top priority in the management of perennials. The occurrence and spread of pests and diseases can, at a minimum, affect the normal growth and ornamental effects of the plants, and in severe cases, cause the flowers to wither and die. Once plants are affected by pests and diseases, even with timely treatment, it is difficult to restore them to their original growth state. Therefore, we must take a series of measures to avoid and minimize the occurrence of pests and diseases, and prevent problems before they arise. Key preventive measures include:

Before planting or sowing flowers, it is essential to disinfect the soil to eliminate existing pathogens, viruses, pests, and their eggs, preventing them from harming the roots, stems, and the entire plant.

(2) Maintain cleanliness at the flower cultivation site by promptly removing spent flowers, withered branches, fallen leaves, and other debris.

(3) Enhance daily management to create an optimal growing environment for flowers, ensuring adequate water and fertilizer, good air circulation, suitable temperature, and ample sunlight. This promotes robust plant growth and helps suppress the breeding and spread of pests and diseases.

(4) Upon discovering plant diseases or pests, timely control measures must be implemented. If individual flowers are affected, they should be isolated from healthy ones as soon as possible. Diseased branches, leaves, roots, and flowers beyond recovery should be promptly burned, buried deeply, or removed.

Before winter, apply a 0.8% mixture of lime sulfur to the flower cultivation area. Before the various flowers germinate in early spring, spray 1-3 times with a low-concentration Bordeaux mixture. Burn sulfur fumes before using greenhouses to prevent and control pests and diseases.