How to prevent and control common apple pests and diseases? A detailed guide to the latest methods
China is a major apple-growing country. With exports and the launch of related products, demand for apples has gradually expanded, which has also led to a gradual increase in its planting area. Along with this come infestations of various pests and diseases, affecting apple yield and quality as well as the income of fruit growers. So what are the common apple pests and diseases? How should they be prevented and controlled? Let's take a look together with Qinong Web.
1. Anthracnose
Anthracnose is one of the important fruit diseases on apples, occurring in all major regions of China. It mainly damages the fruit. In the early stage of the disease, brown spots appear on the fruit, and the spots rapidly expand and turn dark brown. The affected areas become sunken, and the flesh inside rots. Ultimately, this causes the fruit to rot and drop, resulting in huge losses.
Prevention and control methods: Before the plant sprouts, clear away and burn the residual branches and fallen leaves around the plant to reduce the pathogen. Strengthen prevention and control management and disinfection when the fruit first sets. When the disease occurs, spray pesticides for control.
2. Ring rot
Ring rot is also one of the important fruit diseases on apples, often occurring together with anthracnose, making them hard to distinguish. When the disease occurs, brown water-soaked spots appear on the affected parts. As the condition worsens, concentric ring-shaped spots alternating light and dark appear, with an obvious pale water-soaked halo on the outer edge, causing the fruit to rot with a sour, fermented smell.
Prevention and control methods: Eliminate overwintering pathogens, promptly clear away residual branches and fallen leaves, strengthen management, apply more fertilizer, and improve the plant's disease resistance. When the disease occurs, promptly remove the affected parts, then use pesticides for control.
3. Early defoliation disease
Early defoliation disease is a plant disease. It is a general term for various diseases that harm plant leaves. When it occurs, the leaves show different symptoms and eventually fall prematurely, weakening the tree's vigor. In severe cases, it causes the plant to sprout during overwintering and bloom a second time, resulting in poor yield the following year.
Prevention and control methods: Likewise, clear away and burn the residual branches and fallen leaves in the orchard, deep-plow the soil for disinfection, apply more fertilizer to strengthen disease resistance, and when disease is found, promptly remove the affected parts, then spray pesticides for control.
4. Insect pests
The main insect pests of apples include spider mites, fruit borers, and leaf roller moths. They damage the plant's leaves, trunk, shoots, and fruit, causing great harm to the plant. In mild cases, the plant grows poorly and yield decreases; in severe cases, the plant dies.
Prevention and control methods: Clear away weeds and fallen leaves in the orchard, eliminate overwintering eggs, and reduce pest sources. Natural enemies can be introduced for control, or pesticides can be sprayed for control, but attention should be paid to the application method and concentration to avoid harming plant growth.
The above are the common apple pest and disease prevention and control methods brought to you by Qinong Web. Doing a good job in pest and disease prevention and control measures is the key point for achieving high and quality yields. The introduction to apple pest and disease prevention and control ends here. We hope it can be helpful to you. For more related agricultural knowledge, please stay tuned to Qinong Web.