Diseases and Pests of White Peony and Their Control

Diseases and their control on white peony

Black rot disease of plants

Black rot of white peony is prone to occur in summer, generally because of poor ventilation conditions and growing in a high humidity and high temperature environment, which will lead to the occurrence and increase of black rot. But sometimes it is also caused by scale insect pests.

This disease will cause black spots to appear on the leaves of white peony, which will gradually expand and cause the leaves to rot or affect the roots.

Prevention and treatment methods

When black rot is found in white peony, it should be immediately isolated from other plants.

In the early stage of the disease, you can cut off the rotten parts completely, then apply some fungicides (such as thiophanate-methyl, carbendazim, etc.) on the cut, and then dry the cut after applying the medicine in the sun until it is dry. After it is dry, you can insert loose sand into it.

Bituminous coal disease

Another disease that white peony is prone to is sooty mold, which can also affect the leaves, causing them to gradually wither and stop growing.

Prevention and treatment methods

To prevent and control sooty mold, you can directly use drugs, such as diluted chlorothalonil, carbendazim and other fungicides for spraying to kill the virus.

Pests of White Peony and Their Control

Scale pests

Scale insect pests will reproduce and grow at the roots or center of the plant in the early stages of the disease. It will damage the roots of the plant, chew and eat the roots, and stop the plant from growing.

Prevention and treatment methods

After discovering insect pests, immediately isolate them from other plants, then cut off the roots that breed scale insects, and then spray the roots with medicine or irrigate the roots to kill the pests.