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How should date lice on jujube trees be treated?
Date lice are what is known in production as the tortoise wax scale and scale insects. Because the adults form a waxy shell, spraying pesticide makes it very difficult to achieve efficacy, so in winter the infested branches can be pruned off, or water can be sprayed on the branches and, after it freezes, the branches can be beaten to shake the adults off. The peak of larval occurrence is generally from late June to early July; because at this time the waxy shell has not yet formed on the insect bodies, the larvae have poor resistance to pesticides, and this period is the best time for control. Ordinary insecticides can all achieve very good results. By persisting with this for 2-3 years, very good control results can be achieved.
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The Mopan jujube is an ornamental tree suitable for courtyard planting
Aliases: Mozi jujube, Hulu jujube (Hebei), Yaohulu jujube (Gansu). It is fairly widely distributed; it is cultivated in places such as Dali in Shaanxi; Qingyang in Gansu; Jiaohe, Qingxian, Xianxian, Quyang, Daming and Weixian in Hebei; and Leling, Wudi and Xiajin in Shandong, but the quantity is very small, mostly planted scattered around the four sides [of homes and fields]. It has a long history of cultivation. The tree is vigorous, relatively large, with medium-strong trunk dominance; the crown is a natural semicircle and the tree posture is open. A 23-year-old tree: trunk height 1.1 m, trunk circumference 60 cm, tree height 7.35 m, crown diameter about 7 m. The main trunk is grayish brown, with deep bark cracks
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Detailed Explanation of the Key Operational Points of Top Grafting Technology for Jujube Trees
Due to variation arising from long-term cultivation of varieties, the quality of jujube trees currently planted in various regions differs considerably. In the case of the golden silk jujube (Ziziphus jujuba 'Jinsixiaozao'), there are dozens of phenotypes in Jinghai, Tianjin alone, and the size and shape of their fruit vary greatly; determination of their contents has shown that the differences are also considerable. The harvested jujube products have poor uniformity in appearance. This greatly lowers their commercial price and reduces farmers' economic income. To effectively solve this problem and make the fruit of the same jujube orchard attain uniformity
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What are the excellent jujube varieties? Introduction to high-quality jujube tree varieties
The fruit of Jing 39 is egg-shaped or oval, extra large, with an average longitudinal and transverse diameter of 5X4.2CM, an average single fruit weight of 31 grams, and large fruits reaching 46 grams. The skin is thin, the flesh is crisp and tender, juicy and sweet, with an aroma, an edible rate of 95%, and it matures in mid-to-late September. Jing 38 has a shape like a millstone, purplish-red, crisp in texture, with excellent quality, and is a dual-purpose variety for fresh eating and drying, with an average fruit weight of 27 grams, maturing at the end of August. The fruit of Jing 31 is short oval or short cylindrical. The fruit is medium to large, with an average single fruit weight of 8.3 grams and a maximum fruit weight of 10.1 grams
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Why is intercropping tree peony root bark with Gastrodia elata so profitable?
Tree peony root bark (the root bark of the tree peony) and Gastrodia elata are both precious Chinese medicinal herbs. Intercropping Gastrodia elata in tree peony root bark fields is a new high-yield, high-efficiency cultivation model that is worth promoting to herb growers in Chinese medicinal herb growing regions everywhere. The most notable features of intercropping Gastrodia elata in tree peony root bark fields are: first, it makes full use of the land; second, the two are complementary; third, it eliminates the trouble of having to weed the tree peony root bark field frequently. The cultivation method is described below: 1. Planting tree peonies. 1. Site selection: The tree peony field for intercropping Gastrodia elata requires fertile, deep soil, and a slight slope is best.
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Detailed planting points for Pot Jujube No. 3, teaching you how to grow potted jujube trees well
1. Strong early fruiting and high yield: In the small environment of planting in a flower pot (note: the inner diameter of the flower pot mouth should be about 35 cm-40 cm, and the pot depth should be about 28 cm), about 70 fruits set in the same year, 216 fruits per plant in the second year, and the average fresh jujube yield per plant reaches 4.3 kg. 2. Fruit characteristics: The fruit is long cylindrical, with an average fruit weight of 20 g and a deep red peel. 3. Taste and quality: The flesh is fine and crisp, rich in juice, strongly sweet in flavor, slightly sour, with a sugar content of 28%, and the quality is excellent.
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Key points of pruning techniques for jujube-grain intercropping trees
In the jujube-producing areas of northern China, the practice of jujube-grain intercropping has long been customary, and it is a good way of producing jujubes and grain in plain regions. Jujube trees intercropped in grain fields should not be planted too densely, and the trunk should not be too low; a planting density of 150-210 trees/hectare and a tree height of about 6 m are appropriate. In this way, the light received by the grain field is only 1.2%-2.2% less than that of a pure grain field. According to the characteristics of jujube-grain intercropping, in order to give play to the yield-increasing potential of jujube trees, apart from trunk height, a sparse tree form is preferable, so as to maintain strong light for the crops under the trees
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High economic returns from intercropping apricot trees with Chinese medicinal herbs
In recent years, farmers in the rural areas around Luoyang, Henan, have adopted the "forest-medicinal herb intercropping" method to plant trees and grow medicinal herbs, becoming wealthy through both the "forest" and the "medicinal herbs." The soil in the Luoyang area is very high in potassium, so the kernel apricot, a potassium-loving plant, finds the necessary soil conditions to grow there. Moreover, the light, heat and moisture conditions here all suit the growth requirements of kernel apricot. Kernel apricot is cold-tolerant, light-loving and tolerant of poor soil, making it suitable for planting on semi-arid hilly slopes. After planting, kernel apricot can bloom and bear fruit in two to three years, and in four to five
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Detailed Introduction to the Dafo Xing No. 2 Apricot Tree Variety
Dafo Xing No. 2: This strain is a large-fruited apricot selected and bred from local varieties in Zhejiang. Compared with other local varieties, this strain has the characteristics of early maturity, relatively large fruit, good self-pollinating fruit set, bright color, and excellent quality. The fruit is oval-shaped, the skin is orange-yellow, the average single fruit weight reaches 75 g, and the soluble solids content is 10-14%. The flesh is fine, the taste is sweet with a slight aroma, and it matures in mid-to-late May. This strain has better high and stable yield than the introduced variety "Jintaiyang."
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What are the control methods for the box tree webworm (Glyphodes perspectalis)?
It damages boxwood, boxwood (Buxus sinica), large-leaved boxwood, small-leaved boxwood, Japanese boxwood, spoon-leaved boxwood, Korean boxwood, holly and others. The larvae spin silk to bind leaves together and make nests, damaging the host plants. The damaged leaves first show yellow dead spots, and later the entire leaf falls off. They spin silk to bind the leaves and the damaged fallen leaves together, so that the leaves cannot spread out and growth and development are severely affected; when the damage is severe, the whole plant dies. In Shanghai it has 3 to 4 generations a year, with serious overlapping of generations; it becomes active in March of the following year, begins pupating in mid-April, begins emerging in late April, and the first generation
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