How to treat gummosis in Shatang mandarin? Detailed planting techniques
How to treat gummosis in Shatang mandarin trees? Please explain the control methods. For gummosis in Shatang mandarin trees, you can refer to the following methods for control: (1) Strengthen cultivation management: apply more organic fertilizer. For orchards with acidic soil, apply 70-100 kg of lime per mu, or apply 0.25 kg of superphosphate per mature tree, to neutralize soil acidity...
How to treat gummosis in Shatang mandarin trees? Please explain the control methodsFor gummosis in Shatang mandarin trees, you can refer to the following methods for control:
(1) Strengthen cultivation management:Apply more organic fertilizer. For orchards with acidic soil, apply 70-100 kg of lime per mu, or apply 0.25 kg of superphosphate per mature tree, to neutralize soil acidity. Irrigate scientifically, do not allow waterlogging, so as to improve disease resistance.
(2) Protect branches and trunks:During field operations, take care to prevent mechanical injury and prevent frost injury. When pruning, the cut should be smooth. Pay attention to the control of diseases and insect pests, especially boring pests such as longhorn beetles and clearwing moths, to reduce wounds on branches and trunks and reduce pathogen invasion.
(3) Scrape off the diseased parts:In late winter and early spring, before the fruit trees sprout, inspect the fruit trees. For branches with gummosis, use a small knife to scrape off the gum completely, then apply lime-sulfur mixture residue or 1:1:10 Bordeaux mixture or 40% asomate 50 times or 1:4 soda ash water, etc., to brush the wounds and control the spread of the diseased part.
(4) Spray for protection:During the period of vigorous new shoot growth, spray 1-2 times with 40% asomate 600-800 times solution or 50% carbendazim or 70% thiophanate-methyl 1000 times solution, once every 15 days. Strong wind and rain easily cause branch breakage, so after each strong wind and rain, promptly spray once with 70% dexon 600-800 times solution, which can reduce wound infection with gummosis.
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