Pest and disease control in 3D artificial vertical gardens

The prevention and control of pests and diseases in 3D artificial vertical gardens should follow the principle of "prevention first and comprehensive control". In combination with the special environment of vertical gardens, targeted measures should be taken to reduce the use of chemical agents and protect ecological balance.

First, disease prevention and control

Common diseases in vertical gardens include leaf spot disease, powdery mildew, downy mildew, rust, and sooty rot, which are mainly caused by fungi or bacteria and are related to factors such as high humidity and poor ventilation in the plant's growth environment.

preventive measure

Strengthen plant quarantine: When introducing new plant materials, strict quarantine must be carried out to avoid the introduction of pathogenic bacteria.

Select disease-resistant varieties: Give priority to plant varieties that are resistant to common local diseases to enhance the plants' own immunity.

Improve the growth environment: Keep the plant's growth environment clean, promptly remove dead branches and fallen leaves, and reduce the breeding and spread of pathogenic bacteria. Plan the planting density reasonably to avoid excessive crowding of plants and ensure good ventilation and light penetration.

Rational fertilization: According to the growth needs of plants, apply nutrients such as nitrogen, phosphorus and potassium reasonably, avoid excessive application of nitrogen fertilizer, prevent excessive growth of plants and reduce their disease resistance.

Prevention and control methods

Initial treatment of the disease: Once the disease is detected, measures should be taken promptly. At the early stage of the disease, targeted fungicides can be sprayed for prevention and control, such as carbendazim, thiabendazole, metalaxyl, lime sulfur, triazole fungicides (such as tebuconazole), etc. According to the requirements of the pesticide instructions, prepare the concentration of the liquid medicine reasonably, and spray it evenly on both sides of the plant leaves. Spray once every 7 to 10 days for 2 to 3 consecutive times.

Physical control: For some diseases that can be controlled through physical methods, such as timely pruning of diseased branches and leaves and centralized destruction, to reduce the spread of pathogenic bacteria.

Second, pest control

Common pests in vertical gardens include aphids, red spiders, scale insects, whiteflies, spider mites, tormoths, ruler moths, longhorn beetles, and underground pests (such as grubs and cutworms). These pests will suck the SAP of plants, gnawed on leaves or roots, affecting the growth and ornamental value of plants.

preventive measure

Strengthen plant quarantine: Prevent pests from being transported into vertical gardens along with the seedlings.

Protecting and utilizing natural enemies: Introduce natural enemies of pests, such as ladybugs, lacewings, and parasitic wasps, into vertical gardens for biological control to control the number of pests.

Reasonable fertilization and maintenance: Through reasonable fertilization, watering, pruning and other maintenance measures, enhance the plant's pest resistance.

Prevention and control methods

Biological control: Utilizing natural enemy organisms for control, such as releasing ladybugs to control aphids, and releasing lacewings to control spider mites, etc.

Physical control

Manual killing: For pests that are few in number and large in size, such as adult longhorn beetles, manual killing methods can be adopted.

Light trapping: By taking advantage of pests' phototaxis, black light lamps, frequency-vibrating insecticidal lamps, etc. are installed in vertical gardens to trap adult pests.

Yellow board trapping: Hang yellow sticky boards in vertical gardens to trap winged pests such as aphids and whiteflies.

Chemical control: When pests occur in large numbers and biological and physical control methods are difficult to control, appropriate chemical agents can be selected for control. However, it is necessary to pay attention to choosing highly effective, low-toxicity and low-residue pesticides, and strictly follow the requirements of the pesticide instructions to avoid causing harm to the environment and human health. For example, for aphids, imidacloprid, matrine, etc. can be sprayed. For red spiders, you can spray carbendazim, acetonidazole, etc. For leaf-eating pests, pesticides such as dichlorvos and pyrethroid agents can be sprayed. The spraying time should be chosen between 6:00 a.m. and 11:00 a.m. and 4:00 p.m. and 6:00 p.m. Avoid spraying when the temperature is high, strong light is strong, or the dew is still wet. At the same time, pay attention to the quality of spraying. Atomize the liquid medicine and spray it all around the tree canopy, leaving no blind spots or dead corners.