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How do you control algal leaf spot on longan trees?
How do you control longan algal leaf spot? Please provide methods. Methods for controlling longan algal leaf spot: 1. Strengthen cultivation management. Improve the environmental conditions of the orchard, especially ensure good ventilation and light penetration, pay attention to preventing waterlogging and drought, apply more organic fertilizer, and apply more phosphorus and potassium fertilizer to strengthen the tree vigor and improve disease resistance. Remove diseased leaves, gather...
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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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The most effective control methods for common fungal diseases of flowers are all here
It can be said that fungal diseases are the most common category among flower diseases. Fungi are lower organisms that lack chlorophyll, use mycelium as their vegetative body, and reproduce by spores. Diseases caused by fungal infection are called fungal diseases. Fungi...
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Harm and Control Methods of Contaminant Fungi in Oyster Mushroom Cultivation
Early to mid-August is the golden period for cultivating oyster mushrooms in early autumn. Using fermented substrate to cultivate oyster mushrooms is one of the important technical measures for improving oyster mushroom yield and profitability. However, many mushroom growers fail in cultivation because of unscientific substrate preparation. The correct method for preparing oyster mushroom substrate is: 1. Use a reasonable formula. Oyster mushroom...
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Causes of High Empty and Filled Grain Rates in Hybrid Rice and Control Methods
What should you do if hybrid rice has many empty and shriveled grains? What methods can be used to control the high rate of empty and shriveled grains in hybrid rice? The following methods can be used for control: 1. Adapt measures to local conditions and select hybrid varieties with good recoverability. First, choose varieties with strong tillering ability, sufficient effective panicles, and high seed-setting rate and 1000-grain weight. Second, choose...
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Key Points on Propagation, Cultivation Techniques and Pest and Disease Control of Osmanthus fragrans
Propagation Techniques for Osmanthus fragrans. Osmanthus fragrans is generally propagated by cuttings; single-trunk osmanthus is mostly propagated by sowing. Here is an introduction: 1. Seed collection. Osmanthus fragrans blooms from September to October, and the fruit ripens from late March to late April of the following year. When the fruit enters the ripening stage and the skin gradually turns from green to purple-black, it can be collected. The collected fruit...
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How to Control Powdery Mildew on Cut Roses
Powdery mildew is one of the most important diseases of roses, damaging leaves, tender shoots, flower buds and flower stalks. The control methods are as follows: strengthen cultivation management and promptly remove diseased plant debris; prune promptly to improve ventilation and light conditions; do not apply too much nitrogen fertilizer, and appropriately increase phosphorus and potassium fertilizer. Chemical control: when disease occurs during the growing period, spray 15%...
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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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Common Pests and Diseases in Wampee Cultivation and Their Control Methods
What pests and diseases need to be controlled when growing wampee? The main pests and diseases in wampee cultivation are as follows: 1. Wampee anthracnose: Wampee anthracnose is a common disease in production, and it can infect the plant at all growth stages, easily causing leaf spots, leaf rot, bare branches, flower rot, and fruit rot. If wampee is intercropped with other crops and planted at high density, while drainage is inadequate and water accumulates after rain, it will affect the yield and quality of wampee...
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