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What are the diseases and insect pests of bluebells and how to control them?

Last Update ：2024.12.06

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Botrytis cinerea: It often occurs during outdoor maintenance. It needs to be prevented in advance. Do not expose it to rain. After the disease occurs, cut off the diseased branches and leaves. It also needs to cooperate with the preparation of pesticides, and you can spray fungicides. Aphids: Cause damage to young branches, buds, and leaves. Ventilation treatment should be done. You can spray some pesticides such as Wanling and Quick Kill. Spray them once a week. Thrips: Causes plant growth to slow down, and may even wither in severe cases, and can be treated with symptomatic spraying.

What are the diseases and insect pests of bluebells and how to control them

1. Gray mold

1. Botrytis cinerea

Symptoms: This disease often occurs during outdoor maintenance. The branches and leaves of the bellflower turn gray-white, seriously affecting the ornamental value. If not treated in time , may also cause growth problems.

Prevention and treatment: Take preventive and control measures in advance and be careful not to get exposed to rain, which can reduce the possibility of disease. If the disease occurs accidentally, the infected branches and leaves need to be cut off immediately, and then gathered together and destroyed. It also needs to be coordinated with dispensing, you can spray fungicides, the effect is better.

Bluebell

2. Aphids

Symptoms: It mainly causes damage to young branches, buds, and leaves. It pierces these parts and sucks the juice inside, causing the affected parts to shrink and deform, and the secretions can also induce some diseases.

Prevention and control: Ventilation treatment beforehand can prevent the occurrence of insect pests. Pay attention to spraying pesticides. You can spray some pesticides such as Wanling and Quick Kill. Spray once a week and continuously. 2-3 times.

Bluebell

3. Thrips

Symptoms: Adults and nymphs will parasitize on plants and suck the buds, flowers, young fruits, and leaves of the plants. The affected plants will grow very slowly, and in severe cases, they will wither and wither.

Prevention and treatment: When the disease first begins, you can use 25% Rotenoidin EC or 40% Dimethoate 800-1000 times, once a week, 3-4 times in a row to achieve the effect.