Gummosis often occurs in peach trees, and it can significantly reduce yield and quality. Let's understand the causes and control methods of gummosis in peach trees.
Causes of Gummosis in Peach Trees
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Tree Age: Older peach trees are more susceptible to gummosis, especially if they are not properly managed or if there is a significant pest infestation in the orchard.
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Diseases: Diseases such as rot, anthracnose, or canker during peach tree growth can easily lead to gummosis.
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Pest Damage: Various pests, especially boring insects, can cause wounds on peach trees that are highly susceptible to gummosis.
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Improper Pruning: Over-pruning peach trees can also trigger gummosis.
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Mechanical Injury: Mechanical damage to peach trees, combined with frost damage or sunburn, weakens tree vigor and can lead to gummosis.
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Improper Management: Excessive use of chemical fertilizers or insufficient use of organic fertilizers can deteriorate soil structure, reduce tree resistance, and increase susceptibility to gummosis. Low-lying planting sites with heavy clay soil can also cause physiological imbalance in trees, leading to gummosis.
Control Methods of Gummosis in Peach Trees
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Physical and Pathological Pruning: Use a solution of Bordeaux mixture and organosilicon to apply to the pruning wounds. Before winter, protect peach trees from sunburn and insect damage by whitewashing the main trunk.
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Spring Cleaning: Spray the entire orchard with Bordeaux mixture and organosilicon during the bud sprouting period to kill pathogens before they proliferate and repair wounds before sap flow, reducing or preventing the occurrence of pathogens.
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Root System Activation: Use fungicides such as streptomycin, rooting agents, and organosilicon for root irrigation during the first half to one month before bud sprouting to kill fungi, reduce root rot pathogens, promote rooting, and improve root system capabilities.
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Organic Fertilization: Apply organic and microbial fertilizers for basal fertilization. When using chemical fertilizers, ensure scientific and rational application to improve soil structure and increase organic matter content, creating a favorable growth environment for peach trees.
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Treatment: For large gummosis lesions, remove the gum blocks, score the lesions into a mesh pattern reaching the wood, and apply streptomycin sulfate solution with a penetrating agent to ensure the medication reaches the treatment depth and effectively removes the lesions.
Above are the causes and control methods of gummosis in peach trees. Despite the nutritional value of peach gum, gummosis can cause harm to trees, so prevention and control measures should be implemented.
