Disease of Ximola

I. Coal pollution disease

Coal fouling disease is mainly due to coal fouling bacteria eroding the leaves, and then the main symptom is a flaky distribution of coal fouling on the leaves, which will cover the whole leaves in the later stage, causing the leaves to crack and fall. Well, coal fouling bacteria are mainly parasitic on the feces and secretions of aphids and shell insects. ‍

2. Leaf spot

Himalayan will also be attacked by leaf spot fungus. The main symptom of leaf spot is the appearance of yellow-brown spots on the leaves, which gradually become larger, resulting in dark brown on the entire edge of the leaves.

3. Brown spot

In addition to coal pollution and leaf spot, Himalayan will also suffer from brown spot, which is mainly caused by Rhizoctonia solani. Brown spot will harm the branches, leaves and flowers of Hijasmine, and some of the infected parts will show yellowish-brown spots. Finally, serious flowers will fall.

After learning about Himalayan's diseases, let's not worry, and then the editor will sort out how to prevent and cure these diseases for you!

Disease control of Simmonia officinalis

First of all, the most common coal fouling disease of Himalayan is caused by aphids and shell insects, so if we find the root cause, we can kill the insect first, and then prune the plant. for the treatment of leaf spot and brown spot, we can spray carbendazim and chlorothalonil at the initial stage of the disease, which can effectively control these two diseases.

This is the end of today's introduction on the diseases and their control methods of Himalayan. Himalayan mainly suffers from coal pollution, leaf spot and brown spot, of which the most important coal pollution is due to aphids and shell worms. Then we do a good job of regular insecticidal treatment, and timely spraying carbendazim and chlorothalonil, we can control the disease of Himalayan very well!

Common diseases of Simmonia and their control methods

Symptoms of coal pollution disease

Coal fouling disease mainly erodes leaves, which is distributed like soot at the initial stage of the disease, and then gradually covers the whole leaf, resulting in leaf cracking and peeling. Coal fouling bacteria are mainly parasitic on the feces and secretions of aphids and shell insects, which are easy to occur under the conditions of high temperature, high humidity and poor ventilation.

Prevention and control of coal pollution

Aphids and shell insects should be killed in time; plants should be pruned to make them ventilated and transparent; carbendazim and methyl thiophanate can be sprayed to prevent and control coal pollution.

Leaf spot disease symptoms

The spot of leaf spot is yellowish brown at first, then it will gradually expand and become larger, showing dark brown at the edge of the leaf, and there will be small black grains in the infected part of the leaf at a later stage.

Control of leaf spot disease

Carbendazim can be sprayed at the initial stage of the disease for prevention and treatment.

Brown spot symptoms

Brown spot will harm the leaves, buds and buds of the plant, the pathogen will invade from the edge of the leaves, the disease spot is yellow-brown at the initial stage, and eventually becomes a reddish-brown spot. The leaves and buds of the seriously infected plants will fall off.

Control of brown spot

At the initial stage of the disease, chlorothalonil was sprayed.