The Latest Technical Methods and Tutorial for Preventing and Treating Peach Gummosis

In the process of growing peach trees, a common disease is gummosis, which mainly occurs between May and September. It causes a large loss of tree nutrients and gradually weakens the tree vigor. So how should peach gummosis be prevented and treated? Let's take a look at the detailed introduction below.

1. Disease symptoms

Gummosis can be divided into infectious and non-infectious types. The infectious type mainly occurs on branches and can also harm the fruit. When the disease occurs, wart-like small protrusions appear centered on the lenticels, gradually expanding into tumor-like protrusions densely covered with black granules. Afterward, the lesions expand and crack, exuding translucent soft gum, which later turns dark brown and hardens in texture. In severe cases, it can cause branches to die. The non-infectious type is a physiological disease. Its symptoms are somewhat similar to the former, but the cause is physiological gummosis caused by freeze damage and numerous large mechanical wounds. In addition, an excessive number of fruits can also induce physiological gummosis.

2. Causes of the disease

Physiological gummosis is mainly caused by other diseases, freeze damage, excessive pruning, mechanical wounds, and other reasons, while infectious gummosis is caused by fungal infection. Its pathogens are Botryosphaeria dothidea and Taphrina deformans. The pathogenic fungi overwinter as mycelium and conidia on the trunk, branches, and other parts. After temperatures warm up in spring, they begin to multiply in large numbers and spread through wind and rain, invading through wounds and lenticels of the plant and causing disease.

3. Prevention and treatment techniques

First, strengthen fertilizer and water management, increase the application of organic fertilizer, and improve the disease resistance of peach trees. At the same time, it is best to carry out orchard cleaning in winter and spring, and spray lime sulfur mixture for comprehensive orchard cleaning to prevent disease. From April to May on peach trees, spray chemicals such as thiophanate-methyl, tebuconazole, or cymoxanil mancozeb every 10-15 days, which has an excellent preventive effect. When gummosis occurs, first scrape off the gum completely, then apply Kuifuling and organosilicon stock solution multiple times. For trees with more gummosis, adopt the measure of brushing the trunk. For more severe gummosis, in addition to smearing, root drenching can also be adopted, using Qingkulike at 200-300 times + Genjibao at 300 times + organosilicon for root drenching, with good results.

The above is an introduction to prevention and treatment techniques for peach gummosis. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.