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What are the methods to prevent "sprout flushing" in longan?
How to prevent "sprout flushing" in longan? Please give guidance. When longan flower buds break dormancy, they must first sprout shoots, and then inflorescences differentiate and develop from the leaf axils of the compound leaf primordia of the new shoots, that is, transforming from a mixed leaf-flower structure into a pure inflorescence. When the inflorescence primordium is dormant or weak in building strength, it is very easy to form incomplete inflorescences with coexisting flowers and leaves (that is, flower clusters...
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What to Do About Wampee Fruit Drop and Fruit Cracking? A Detailed Guide to Prevention and Control Methods
What to do about wampee fruit drop and fruit cracking? Please advise: during the fruiting period of wampee, the main tasks are to protect the fruit, prevent fruit drop and fruit cracking, and promote fruit enlargement. Because there is a lot of rain and highly changeable weather from March to June, conditions are very unfavorable for wampee fruit growth, and orchards lacking management will show fruit cracking and fruit drop. The main methods to prevent fruit drop and fruit cracking are...
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How to prevent and control sooty mold on wampee? These methods you need to master
How to prevent and control sooty mold on wampee? Please introduce Sooty mold on wampee is a common disease that occurs widely in wampee-producing areas in China, affecting the photosynthesis of plants and reducing yield. It affects economic development. Symptoms The disease occurs on leaves, and some branches, shoots and fruits are also affected. In the early stage of the disease, the surface of leaves and shoots will produce...
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How to prevent and control rose pests and diseases? A full breakdown of practical methods
The most common diseases of roses include powdery mildew, black spot, dieback, and rust; there are dozens of possible pest infestations, the most common being scale insects, aphids, spider mites, thrips, slug moth caterpillars, and sawflies. For the above pests and diseases, prevention and control efforts must be intensified. During the dormant period, pruning work should also be carried out...
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How to prevent and control jujube brown spot disease? A full breakdown of practical tips
How to prevent and control jujube brown spot disease? Please explain the methods. Jujube brown spot disease is one of the main causes of leaf drop and fruit drop in winter jujube, and its damage is extremely serious, so prevention and control of this disease must be grasped early and well. Brown spot disease is what jujube farmers commonly call rigid rot disease or rotten fruit disease. The disease mostly starts from the jujube stalk, and some also occurs from the middle part of the jujube fruit...
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What are the common diseases of roses? A detailed guide to prevention and control methods
Symptoms: In the early stage of the disease, small purple-brown spots appear on the leaves, which later expand into nearly circular dark brown spots, often with a radial yellow halo at the edges. In severe cases, the spots merge, and the leaves wither and drop, especially in summer and autumn, causing massive leaf loss, leaving the lower part of the plant as bare stems. After young shoots are infected, dark brown streaks appear, slightly sunken, causing the young...
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What are the prevention measures for rose black spot disease? Explained clearly in one article
Rose black spot disease is a stubborn disease that harms roses, mainly occurring on leaves, young shoots and flower stalks. The lesions mostly occur on the upper surface of the leaves. On severely affected plants, all the leaves from the lower to the middle part fall off, making the plants grow weakly and susceptible to low-temperature damage to flower buds, affecting flowering the following year, and even causing branches to die. The author...
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How to prevent fruit drop of winter jujube in summer? Detailed control methods
How to prevent fruit drop of winter jujube in summer? Please guide. The following methods can be used to prevent fruit drop of winter jujube in summer: bending branches to open the angle. For relatively upright branches, bending can change their direction, disperse the growth polarity, slow down the vegetative growth momentum, and enhance the ventilation and light penetration of the tree canopy. Removing sprouts and pinching...
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What are the methods for preventing and treating rose diseases
1. Symptoms. Black spot is most prevalent in the Beijing area during summer and autumn. Infected rose leaves develop dark brown spots 3-4 mm in diameter with a yellow halo around them, and the leaves drop off; when the disease is severe, only the stems and infected young shoots remain on the rose plant. 2. Early prevention (1) During the rose seedling stage, prevent the leaves from...
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What to Do When Roses Get Rose Mosaic Virus? A Detailed Guide to Prevention and Control Methods
Rose mosaic virus is widely distributed and can cause a decline in the yield and quality of cut roses. Symptoms: Its symptoms vary depending on the rose variety. Rose mosaic virus is characterized by small chlorotic spots, sometimes showing polygonal patterns. The leaf surface around the lesions is often somewhat deformed. Some symptoms appear as rings, ...
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