A Comprehensive Guide to Peach Tree Pest and Disease Control Techniques

Peach tree pest and disease control techniques constitute a task that is both comprehensive and systematic, requiring close integration with the patterns of pest and disease occurrence and local climatic conditions, with “prevention first, enhancing resistance, treating both pests and diseases, and ensuring nutrition" as the basic principle", applying comprehensive and scientific pest and disease control measures to peach trees. This is a necessary condition for ensuring the normal growth of peach trees and also an effective path to enhancing their economic benefits.

I. Peach Bacterial Shot Hole Disease

1. Management of the peach orchard needs to be strengthened. When selecting a site for the orchard, avoid areas with a high groundwater table or low-lying terrain, to prevent waterlogging from causing high air humidity; when fertilizing, reduce the amount of nitrogen fertilizer applied to avoid excessive vegetative growth; at the same time, reasonable pruning is needed. Increase ventilation and light penetration, especially in summer; pruning of peach trees needs to be moderate, promptly removing branches affected by this disease, and the removed diseased branches should be burned in a centralized manner. At the same time, in winter, the orchard needs to be thoroughly and completely cleaned up to reduce the breeding of overwintering bacteria.

2. Rational use of chemical control. Usually, Bordeaux mixture is sprayed before peach trees bud; after flowering, a Kobo solution needs to be sprayed; from May to August, wettable powders such as streptomycin and zineb need to be sprayed, which can effectively control this type of disease.

II. Peach Scab

1. Since peach scab is a disease caused by a fungal pathogen, control efforts need to target the reproduction and overwintering of the pathogen. Therefore, during winter pruning, a comprehensive and careful inspection of the treetops is needed; once diseased shoots are found, they must be pruned immediately, and the peach orchard must be thoroughly cleaned up to reduce the presence of pathogens.

2. Secondly, in terms of peach tree planting, density needs to be reasonably controlled, and scientific pruning should be implemented to maintain the tree shape, avoiding contact between tree crowns, ensuring adequate light and ventilation for the peach trees, and during the rainy season, the air humidity in the orchard needs to be reduced. Regarding the use of chemical agents, sodium pentachlorophenate is usually sprayed before peach trees bud; from 2 weeks after petal fall until July, carbendazim wettable powder needs to be sprayed at intervals of 2 weeks, which can effectively inhibit the breeding and spread of the pathogen.

III. Peach Red-Necked Longhorn Beetle

For the control of the red-necked longhorn beetle, because the boring tunnels are irregular in shape, the black-kill method is quite effective. In practice, first clean away the frass at the location of fresh frass holes, then use a small blade to pry open the cortex around the frass holes, and then insert aluminum phosphide tablets to poison the larvae. After inserting the agent, the affected area needs to be sealed with a mixture of 2% saline and thin mud, then wrapped with plastic film, ensuring that the top and bottom are tightly tied”). Operators must ensure they wear gloves and masks before carrying out control operations, to avoid harm to the human body from the pests.

IV. Peach Gummosis

1. The soil needs to be improved, appropriately increasing the amount of organic fertilizer applied, thereby enhancing soil fertility.

2. Good drainage of the orchard needs to be ensured, avoiding water accumulation in the orchard, to reduce air humidity and lower the incidence of peach gummosis. At the same time, the physical protection of peach tree branches and trunks needs to be strengthened to reduce the probability of wounds appearing on the branches and trunks. In addition, if gummosis exists on the peach tree body, it needs to be scraped off promptly, then coated with 5*Be lime sulfur mixture, and after an interval of two days, brushed with 70% thiophanate-methyl to control peach gummosis.

As a good project for increasing farmers' income, peach tree cultivation has high economic benefits and can bring good returns to peach growers. However, if the orchard is not properly managed, it will lead to a series of pests and diseases in peach trees, which will directly affect the growth of the peach trees and, in severe cases, adversely affect the economic benefits of the peach trees. Based on this, orchard managers need to follow the basic principle of “prevention first, combining prevention and control”, and in combination with local weather conditions and crop growth characteristics, carry out reasonable and scientific pest and disease control on peach trees, which can improve the growth quality of peach trees and ensure the economic benefits of the peach orchard.