Symptoms and control methods of common peach diseases

Peach trees are widely planted in China, and peaches are also loved by the people. they have good appearance, plump, juicy flesh and rich nutrition. However, peach trees will encounter a lot of diseases when they are planted. If these diseases are not properly controlled, they will bring a devastating blow to fruit growers. What diseases do peach trees have? Let's take a look at the prevention and control methods of these diseases with the editor.

1. Scab

Scab is one of the main diseases of peach trees. I believe we have all seen large and small scars on peach trees. They are left by scab, which mainly occurs during the fruit ripening period from May to July and is easy to occur in rainy and humid climates. It mainly harms the fruit and treetops, when the disease occurs, the fruit appears dark green disease spot, and the disease spot changes constantly with the fruit growth. when the fruit is ripe, the disease spot becomes dark purple or black, the disease spot is sunken, and the fruit cracking symptom occurs when the disease is serious. On the other hand, the top of the tree appears a light brown spot after being infected with the disease. with the expansion of the spot, the lesion will bulge and glue flow will occur.

Control methods: in winter, it is necessary to clean up infected treetops, clean orchards, reduce pathogens, properly prune, increase plant ventilation and light transmittance, and spray carbendazim, zinc, chlorothalonil and other agents during sprouting, the prevention effect is better.

2. Anthrax

Anthracnose mainly occurs in the overcast and rainy period in autumn, is easy to occur in the young fruit stage of peach trees, and is more serious in the warm and humid environment. It mainly harms the fruit. When the fruit is infected, the waterlogged spot appears on the epidermis, the spot expands and turns to reddish brown, the lesion is sunken, and there are concentric wrinkles in the center. When the humidity is high, the spot will produce a large number of sticky spots, and finally the fruit will rot and fall off or the fruit will stay in the tree.

Control methods: select varieties with strong disease resistance according to local conditions, strengthen fertilizer and water management, increase phosphorus and potassium fertilizer, improve plant disease resistance, pay attention to drainage and waterlogging, and reduce soil moisture. Clear the garden thoroughly in winter, burn or bury the diseased branches, residual branches, diseased fruits and fallen leaves, bag in time, prevent and cure the disease, and spray chlorothalonil, mancozeb, methyl thiophanate and other agents during the disease.

3. Glue disease

Gum disease is also one of the main diseases of peach trees, which can occur when the temperature is slightly higher. It mainly harms the branches of peach trees. Small bumps appear in the branches when the disease occurs, and generally there is no glue flow phenomenon in the same year. In the second year, these small bumps will break, resulting in a colorless, translucent, sticky soft glue, sometimes harmful to the fruit, and yellow glue will flow out after the fruit is infected.

Prevention and control methods: strengthen fertilizer and water management, improve plant disease resistance, scientific and reasonable pruning, pay attention to flower and fruit thinning, reduce load, in the onset season, spray Jiaotou, mancozeb, carbendazim wettable powder and other agents to prevent the disease, pay attention to the alternate use of agents, so as to prevent the plant from producing drug resistance, resulting in a more serious disease.

4. Mosaic disease

Mosaic disease is one of many plant diseases, which is harmful to peach trees. Peach trees are mainly infected by grafting, and aphids and mites can also spread the disease. After the fruit is infected, the growth is slow, the pulp is not sweet, and there is a bitter taste; after the leaves are infected, some will appear yellow-white miscellaneous colors, or re-fade green spots, and most of them will appear yellow leaves and curl phenomenon.

Control methods: local diseased plants are found in time to clean up, in addition, it is necessary to strengthen the orchard pest control work, so as to avoid large-scale pest disease.

The above are common peach tree disease symptoms and control methods, hope to help you, want to know more peach tree planting knowledge, please pay attention to us.