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What are the control methods for citrus canker?
Symptom characteristics Damage to leaves, twigs and fruit. The common feature of the symptoms is that all affected parts show corky, raised lesions, with the center of the lesion cracking in a crater-like pattern; the difference is that the corky lesions on leaves penetrate both the front and back of the leaf, with a yellow halo around the lesion, while the lesions on fruit and twigs
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Pomelo Anthracnose Control Methods, a Must-Read for Growers
Symptom Characteristics Harm to leaves, twigs and fruit. On leaves and twigs during continuous rainy and humid weather, acute-type symptoms appear: pale bluish patches with dark brown on leaf tips, like scalded by boiling water, with indistinct edges; tender shoots show acute wilting like scalded by boiling water. In briefly humid weather that quickly turns clear,
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Control Methods for Penicillium Mold and Green Mold in Pomelo
Symptom characteristics: mainly affects fruit after harvest during storage and transport. The symptoms of the two diseases are similar, mostly starting from the stem end or wounds, initially appearing as light brown water-soaked spots. The lesions expand rapidly, the fruit softens and rots, and a layer of white mold grows on the lesion surface; later the white mold patches turn into green mold patches.
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A Detailed Guide to Renewal Methods for Aged Mandarin Orange Trees
For aged trees caused by advanced tree age, overly dense planting, damage from pests and diseases, or poor management, renewal and rejuvenation should be carried out promptly. There are three methods: main branch renewal, skeleton renewal, and rotational renewal. 1. Main branch renewal. This method is suitable for severely declining plants. The method is: at
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Detailed Explanation of Flower Promotion Measures and Methods for Mandarin Oranges
In our country, mandarin oranges are a very common and highly popular fruit. According to what the editor has learned, mandarin oranges from Guangxi are quite famous, which shows that mandarin oranges are suited to living in places with relatively hot weather, and in the north it is impossible to grow delicious mandarin oranges.
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Detailed Explanation of Winter Pruning Experience and Methods for Apricot Trees
Winter pruning of apricot trees is an extremely important technical step in the year-round management of fruit trees. Reasonable pruning can regulate the relationship between vegetative growth and reproductive growth, determine a reasonable crop load, overcome alternate bearing, and extend the life of the fruit tree. Pruning of apricot trees is no exception; the pruning methods and strategies differ at different stages of the apricot tree.
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Detailed Explanation of Cultivation and Management Experience and Methods for Kernel Apricots
I. Technology Introduction 1. Variety selection: Main cultivars: Longwangmao, Yiwofeng, Baiyubian, Chaoren, Fenghong, Youren, Yuanren, etc. Baiyubian is an excellent pollinator variety for kernel apricots, with relatively strong cold resistance; Yiwofeng is extremely high-yielding, and the other three varieties are resistant to frost and tolerant of
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Autumn Management Methods and Technical Points for Apricot Trees
Autumn is the nutrient storage period for apricot trees. The key to autumn management of apricot trees is to maintain the assimilation function of the leaves, prevent early defoliation, improve the cold resistance of apricot trees, promote root growth, and accelerate flower bud differentiation. 1. Soil, fertilizer and water management. Apply base fertilizer in autumn. Carry out around the Autumn Equinox.
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Control Methods for Four Pests in Hawthorn Cultivation
1. Peach fruit moth 1. Ground control: before the larvae emerge from the soil, spray the soil surface within the hawthorn tree drip line with chlorpyrifos diluted 1000 times, and spray once more at an interval of 15-20 days, which can effectively control the peach fruit moth. 2. Tree control: during its peak egg-laying period
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Key Technical Points for Soilless Propagation and Cultivation of Hawthorn
Hawthorn Propagation Methods The seedlings used for potted hawthorn differ considerably from those used for field planting. For potted seedlings, the primary requirement is that within a relatively small range from the root crown, there should be well-developed fibrous roots; the greater the quantity of fibrous roots, the more favorable it is for growth after potting. In addition, according to the size of the pot used
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