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Detailed Prevention and Control Methods for Low Fruit Set Rate in Jujube Trees
1. Pay attention to shaping and pruning. Because the bud types and growth and fruiting habits of jujube trees differ from those of other fruit trees, they are not sensitive to pruning responses. Therefore, pruning must follow the tree's natural tendency and shape the tree according to the branches, and pruning should be light. Winter pruning and summer pruning should be combined so that the main branches are reasonably distributed with clear layers. Select
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Occurrence Patterns and Control Methods of the Citrus Whitefly
The citrus whitefly, Dialeurodes citri (Ashmead), also known as the citrus whitefly, Tongcao whitefly, and orange-yellow whitefly. In recent years, damage in citrus orchards across the counties (districts) of northwestern Fujian has been extremely severe, spreading from localized outbreaks to contiguous occurrence, with a worsening trend. Adults and nymphs suck plant sap
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Causes and Control Methods of Citrus Sunburn
Citrus sunburn is a common physiological disease in hot seasons, mainly affecting leaves, fruit and bark. The occurrence of this disease is mainly caused by exposure to high temperatures and scorching sun. At noon and in the afternoon during hot weather, the local temperature of orange trees exposed to direct sunlight rises sharply
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Control methods for yellowing disease in citrus cultivation
In many places in our province, citrus yellowing disease occurs commonly in citrus orchards, causing weakened tree vigor, reduced yield, degraded quality, and premature tree decline. Some fruit growers believe it is all citrus greening disease and adopt the practice of cutting down trees, causing unnecessary production losses. In fact, yellowing disease, as long as it is not
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Control Methods and Technical Key Points for Mango Shoot Blight and Gummosis
Mango shoot blight and gummosis mainly damages branches and the main trunk, causing dieback, but it can also harm seedlings and fruit. When seedlings are affected, dark brown necrotic spots usually appear from the bud graft point or wounds, rapidly spreading upward and downward, causing the scion to die. When the main trunk or branches are affected, the cortex
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How to remedy mango "false bearing"? Detailed explanation of prevention and treatment methods
We often see: when mango trees grow too vigorously, they show low yield or fail to set fruit. This is because vegetative growth dominates, while reproductive growth is at a disadvantage. In response to this situation, effective measures should be taken to solve the problem of mango trees not setting fruit or setting few fruit (that is, false
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Control Methods for Anthracnose in Mango Cultivation
1. Damage symptoms: It mainly damages mango flowers, fruits and young shoots. After young leaves are infected, many round brown spots appear, surrounded by yellow halos, and gradually expand into round, polygonal or irregular brown lesions, which later rupture and perforate. The wounds on leaves and young fruits caused by gall midges, leafhoppers and other pests are also easily infected by this disease.
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What are the control methods for calcium deficiency in apple trees?
Symptoms of calcium deficiency in apple trees: bitter pit formed in the early stage, with a spongy texture under the skin but without rotting. The red spots and black spots formed before harvest should be distinguished as to whether they are an infectious disease or a physiological disorder. The red spots and black spots formed by infectious diseases rapidly expand and penetrate deep into the flesh and
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How to Propagate Figs: A Detailed Guide to Common Propagation Methods
Cuttings, layering, sowing and other methods can all be used for propagation, but in production practice asexual propagation is commonly used; sexual propagation is only used in breeding work. (1) Cutting propagation: Fig branches readily produce adventitious roots, so cuttings are mostly used for propagation in production. Mid-February to late March
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Control Methods for Phytophthora Disease in Fig Cultivation
Fig Phytophthora disease is an important disease of figs in suburban areas in recent years, occurring commonly and causing serious damage. In years when the disease is epidemic, 80%-90% of the fruit can be affected and rot, and large numbers of branches and leaves wither. [Symptoms of damage] The disease mainly damages fruit, new shoots and leaves, and can also infect buds.
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