Common diseases of Teyulian and their control methods

Common diseases of Teyulian: rust

The rust disease of lotus is caused by rust fungus. Rust fungi generally only cause local infection. The affected parts may produce small blisters or blister-like, cup-shaped, or hair-like objects of different colors due to the accumulation of spores. Some may also cause rough bark symptoms on branches and trunks, or cause leaf fall, poor growth, etc. In severe cases, the spores accumulate in dense patches and the plants quickly die due to the evaporation of a large amount of water in the body.

Chemical control of lotus rust: Triazole fungicides are an ideal type of agent that has good control effects on rust, long-lasting effectiveness, and both protective and therapeutic effects. Common varieties include fenadone, hydroxycarboxin, tebuconazole (Suboly), and licoxone.

Common diseases of Teyulian: black rot

Black rot of the lotus often occurs in summer, usually due to poor ventilation and high humidity and temperature, but sometimes it can also be caused by scale insects.

Prevention and control methods for black rot of Jade Lotus: After discovery, it needs to be quickly isolated from other plants. In the early stage, the rotten parts can be completely cut off. A small amount of fungicide (chlorothalonil, carbendazim, etc.) can be applied on the cut. After the cut is dried, insert it into loose sandy soil to re-root.

If black rot has spread to the growing point of the plant, it can be considered dead and should be discarded as soon as possible to prevent infection.

Common diseases of Teyulian: sooty mold

The taro plant living in an environment with poor ventilation often suffers from soot disease. The leaves looked like they were covered with coal dust, which was very ugly. Once discovered, coal pollution must be removed in a timely manner.

Prevention and control methods for sooty mold of Teyulian: It can be treated by spraying diluted fungicides such as chlorothalonil and carbendazim. To prevent the disease, you can mix a small amount of fungicides such as thiophanate-methyl and carbendazim into the soil.