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Sugar mandarin (Citrus reticulata 'Shatangju') - Control Methods for Stem-Boring Insects and Key Points of Cultivation Techniques
How to control stem borers in sugar mandarins? Please advise on control methods. The stem borers of sugar mandarins are mainly the larvae of longhorn beetles or jewel beetles. The control methods are as follows: 1. Pricking or hooking out the larvae. From August to September, based on the frass of the larvae in the tunnels, determine the larval instar and whether there are insects and their life stages inside the tunnel, then use a thin, sharp wire from the fresh...
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Fertilization Precautions and Key Planting Techniques for Shatang Mandarin
What should be noted when fertilizing Shatang mandarin? Please give guidance. During routine visits to rural areas, I found that quite a few farmers fertilize Shatang mandarin unreasonably. The following are listed for reference: One-sided and excessive application of nitrogen fertilizer: urea is the most commonly used in production. According to surveys, in recent years, mandarin orchards that applied urea alone as the fruit-fattening fertilizer accounted for about 40%, and it was applied arbitrarily, often resulting in excessive amounts; for example, applying more than 500 grams of urea per tree is not uncommon. One-sided and excessive application of nitrogen fertilizer causes the peel to thicken and become coarse, forming inferior thick-skinned large fruit; coloring is delayed, and a large number of green fruit appear; the flavor deteriorates and the juice rate declines, especially making the taste sour and astringent, unpalatable. Phosphorus and potassium fertilizers have an obvious effect in promoting fruit acidity reduction and sugar increase, and can promote the expansion of citrus fruit.
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Shatang Mandarin Cultivation Techniques: How to Apply the Fruit-Swelling Fertilizer for Shatang Mandarin?
How to apply the fruit-swelling fertilizer for Shatang Mandarin? Please provide an introduction to the method. When applying the fruit-swelling fertilizer to Shatang Mandarin, the autumn shoot fertilizer is generally applied at the same time. The method is as follows: 1. During the stage from the emergence of autumn shoots on fruiting Shatang Mandarin trees until the autumn shoots are fully mature, the growth and development of the fruit requires a certain continuous supply of nutrients, and also requires...
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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...
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Growing Techniques for Controlling the Fruit-piercing Moth in Shatangju Mandarins
How do you control the fruit-piercing moth in Shatangju mandarins? What are the damage patterns of the fruit-piercing moth in Shatangju mandarins? Please provide an introduction. Adult fruit-piercing moths can be found in Shatangju mandarin fields from March to November, but they are more numerous in autumn. Eggs occur more frequently in the wild in early June, August, and early September, but because the egg hatching rate is low and larval mortality is high, the number of larvae occurring is not great...
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How to fertilize mandarin oranges? A detailed explanation of the key cultivation techniques
How to fertilize mandarin oranges? Which nutrients are best to apply to mandarin oranges? Please give guidance. The essential elements during the growth of mandarin oranges are: nitrogen, phosphorus, potassium (major elements), calcium, magnesium, sulfur (secondary elements), zinc, manganese, iron, copper, boron, molybdenum (trace elements). Each nutrient has a certain function, and a deficiency...
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Sugar mandarin cultivation techniques: What are the methods for fruit retention?
How to retain fruit on sugar mandarins? What causes sugar mandarins to drop flowers and fruit? Please provide guidance. The factors that cause flower and fruit drop in sugar mandarins are as follows: 1. Insufficient tree nutrition, which is the main cause of fruit drop. 2. Low-temperature freezing damage in early spring causes poor development of floral organs, many deformed flowers, and reduced pollination...
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Common Pests and Diseases of Shatang Mandarin in August: Prevention and Control, and Cultivation Techniques
What pests and diseases affect Shatang mandarin in August? Here is an introduction and guidance on prevention and control methods. August is the period from summer shoot growth to autumn shoot sprouting for Shatang mandarin, so pests and diseases occur more frequently. The main pests are: rust mites, red wax scale, citrus leafminer, citrus flatheaded borer, and longhorn beetles; the main diseases are: citrus canker and foot rot; for detailed prevention and control methods, see...
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What Should You Do If a Ponkan Mandarin Gets Huanglongbing? A Detailed Guide to Prevention and Control Methods
What should you do if a ponkan mandarin gets huanglongbing?
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What are the orchard planting techniques and management methods for Shatang mandarin?
Orchard planting techniques and management methods for Shatang mandarin
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