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What are the control methods for iron deficiency chlorosis in jujube trees?
Distribution and harm: Yellow leaf disease occurs in many jujube-growing areas, among which iron deficiency chlorosis is relatively common and is a physiological disease. It can cause tree decline, affect jujube yield, and in severe cases can cause tree death. 1. Symptoms: Mild iron deficiency
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Prevention and Control Methods for Bark Cracking and Trunk Dehydration in Young Jujube Trees
Yining County once developed jujube trees on a large scale. In years with heavy winter snowfall, when the snow melted in early spring, the trunk below the snow line (about 20 cm high) was soaked by melting snow water and exposed to wind, causing rot and bark splitting, which blocked the tree's vascular tissue and led to drying and death.
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Detailed Explanation of the Hook-Shaped Cleft Grafting Method for Jujube Trees, Step-by-Step Guide
1. Tools used: pruning shears, grafting knife (straight sharp knife), plastic strips. 2. Collection of scions: Collect well-developed, pest- and disease-free 1-year-old jujube head branches or current-year lignified branches, remove secondary branches (leave 2 cm long) and leaves, and use them immediately after collection. If
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Seven precautions for girdling jujube trees that growers must remember
I think everyone is very familiar with jujube trees, and many people should have witnessed the growth process of jujubes. As the saying goes, "Eat three jujubes a day, and youth will never fade." Therefore, jujubes are deeply loved by everyone. Do not underestimate those individual jujubes; they actually contain great nutritional value.
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A New Method of Grafting Jujube Trees: A Detailed Guide to the Chip Budding Technique
Chip budding jujube trees is a good method for developing fine jujube varieties. It is introduced as follows: 1. Tools: pruning shears, grafting knife, plastic strips. 2. Collection and storage of scions. ① Spring-summer grafting: (late April to late June), before the end of March, collect well-developed, pest-free one-year-old jujube head branches from a mother tree orchard of fine varieties, cut off the secondary branches (leaving 2 cm), store them in a cool, moist place, bury them well in moist sand, or store them in a cellar less than 4 m deep or suspend them down a well (below 7°C). In this way the scions can be stored until late June to early July. ② Autumn grafting: (early August to mid-to-late September) collect current-year lignified branches, immediately remove the secondary branches and leaves, and use them as soon as they are collected. If they need to be stored for a short time, they can be placed in a container holding 10 cm of clean water and suspended down a well 0.5-1 m above the water surface or placed in a cellar.
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What are the control methods for the tortoise wax scale on jujube trees
In recent years, the tortoise wax scale (Ceroplastes japonicus) has spread through the counties of our city, causing serious damage, which has generally weakened the vigor of jujube trees, significantly reduced yields, and even caused total crop failure. In order to effectively carry out chemical control of the tortoise wax scale on jujube, since 1996 we have carried out control trials for 4 consecutive years
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What are the control methods for the peach fruit borer on jujube trees?
Also known as the peach borer moth and peach spotted borer moth, it is an omnivorous pest distributed throughout the country. Its larvae damage the fruits or seeds of many plants such as winter jujube, peach, plum, persimmon, chestnut, apple, pear, pomegranate and hawthorn. When the fruit is damaged, it becomes filled with insect droppings, causing rot, and in severe
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When to Apply Top Dressing to Jujube Trees? A Detailed Guide to Growing Experience
Top dressing must be applied during the growing season when the jujube tree most needs nutrients. If the timing of top dressing is incorrect, the purpose of top dressing cannot be achieved, and sometimes it even has the opposite effect, reducing jujube yield and quality and wasting labor and fertilizer. According to the characteristics of the phenological phases of jujube trees, top dressing of jujube trees
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What are the control methods for the jujube gall midge, a pest of jujube trees?
Jujube gall midge (Contarinia sp.) (1) Aliases and taxonomic status: jujube bud maggot, leaf-rolling maggot, jujube maggot, belonging to Diptera, Cecidomyiidae. (2) Distribution: This insect is distributed in all jujube-growing areas across the country, with the five major jujube areas of Shandong, Shanxi, Henan, Hebei and Shaanxi suffering the most severe damage; it is one of the main pests of jujube leaves.
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Key Management Techniques for Jujube Trees After Fruit Harvest
In late June and early July, jujube fruits mature successively and enter the harvest stage. In order to speed up the recovery of tree vigor, promote the growth of robust autumn shoots, cultivate excellent fruiting mother branches, and lay a good foundation for high and stable yields the following year, it is necessary to strengthen orchard cleaning and pruning, fertilizer and water management, and pest and disease
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