What are the common pests and diseases on pomegranate trees?

The pomegranate tree is a fruit tree prone to many pests and diseases, and every year farmers suffer some yield loss because of these diseases, with severe cases even leading to a total crop failure. Let's take a look below at some common diseases of pomegranate trees, so that when symptoms appear you can identify the type of disease yourself and carry out post-disaster prevention and treatment.

1. Pomegranate stem window moth

This is a pest that is extremely destructive during its larval stage. The parent lays eggs on the branches of the pomegranate tree, and its larvae feed on the sap of the branches, seriously affecting the growth of the pomegranate tree. The peak incidence period is generally around July. The early symptoms are an extremely high death rate of new branches, and in severe cases old branches also die. In the later stage of the disease, the larvae invade the main trunk, causing the entire plant to wither. So if farmers find that a very large number of the year's branches have died, they should watch out for the pomegranate stem window moth. It is recommended to promptly clean up old and dead branches, and after the disease appears, the plants can be sprayed with trichlorfon insecticide.

2. Pomegranate dry rot

This is a disease caused by a pathogen, and the onset period spans the flowering and fruiting stages. The disease mostly occurs during the rainy season and the subsequent periods of higher humidity. Early symptoms are brown spots appearing on the corolla part of the flowers or fruit, which slowly rot and spread, finally covering the entire fruit and flower. The prominent symptom during the flowering stage is severe flower drop, and most of the flowers show obvious blackening. The prominent symptom during the fruiting stage is a large number of fruits developing black rot, along with fruit drop. Carbendazim suspension concentrate can be used to try to treat it.

3. Black spot disease

If you often see quite a lot of black spots on the leaves of a pomegranate tree, and within a period after the black spots appear the leaves wither and fall very quickly, this is basically caused by black spot disease. In severe cases it causes a large number of leaves to fall, the pomegranate tree can no longer carry out photosynthesis, and it finally slowly withers. If you find such a situation, it is best to treat it promptly, and carbendazim is a good choice.

4. Scab

Scab is a disease that mostly occurs on the pomegranate fruit. Its concentrated symptom is that some scab-like spots appear on the surface of the pomegranate, which then slowly spread, and the affected area further dries up, until finally the entire fruit becomes a dried lump. The onset period is concentrated in the early fruiting stage, and the symptoms are obvious. Generally, once found, it is recommended to directly remove the fruit to reduce the pathogen, and finally use carbendazim powder for treatment.

The above are the common pests and diseases of pomegranate trees, and these pests and diseases pose a relatively great threat to pomegranate trees. Generally, disease prevention follows the principle of reducing pathogens to lower the chance of onset, so farmers should clean up the leftover branches of the fruit trees after harvest and carry them out of the plantation.