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How to treat pear tree top rot? Silicon-calcium-magnesium fertilizer has good control effect
Pear top rot, also known as pear stem rot and pear iron-head disease, generally occurs on European pear varieties, so it is also called European pear top rot. The causative factor of pear top rot is currently unclear and is generally considered a physiological disease. In order to seek effective control methods, we conducted a control experiment using silicon-calcium-magnesium fertilizer and achieved good results. The experimental results are summarized as follows. (1) Experiment and methods: (1) Experimental materials. The experiment was set up in a pear orchard in Xishanbeitou Village, Dayao Town, Muping District, Yantai, Shandong, with the variety Bartlett pear
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Detailed Explanation of the Occurrence and Control Methods of Peach Tree Gummosis
Peach tree gummosis is a disease commonly occurring on peach trees today, and its incidence is severe. Especially in peach orchards with extensive management and weakened tree vigor, the rate of affected plants can reach over 90%. This disease severely weakens tree vigor, affects yield and quality, and in severe cases leads to dead branches and dead trees, threatening the production and development of peach trees. It is also one of the most troublesome diseases for fruit growers. I. Causes of the disease. There are two causes of peach gummosis: one is non-infectious pathogens, such as gummosis caused by wounds from mechanical injury, insect and disease damage, frost injury, freezing injury, etc., or gummosis caused by physiological disorders of the tree body due to extensive management, excessive pruning, excessive fruiting, improper fertilization, heavy clay soil, etc. The other is infectious pathogens caused by fungi; the sexual stage belongs to Ascomycota, and the asexual stage belongs to Deuteromycota.
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The dove tree blooms like a flock of dancing doves. Have you ever seen such a beautiful sight?
The dove tree, also known as the dove tree, originally grows in the cold high mountain areas at an altitude of 1000 to 2000 m. It prefers shady, moist, slightly acidic or neutral soil and is a national first-class protected tree species. It blooms in spring, and its flowers resemble doves, hence the name "dove tree." The Xiangfan City Forestry Research Institute in Hubei Province introduced and cultivated it in 1980, and more than 200 trees are now preserved. The largest one is 13 m tall with a diameter at breast height of 14 cm. On April 10, this 27-year-old dove tree was already covered in flowers, about more than 800 of them, like a flock of dancing doves. The Xiangfan City Forestry Research Institute is located in the Ancient Longzhong Scenic
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Why is the fragrant rosewood (Robinia pseudoacacia 'Idaho') called a precious tree species?
The fragrant rosewood, also known as the "tree of wealth," is a deciduous tree in the Fabaceae (Papilionaceae) family, native to Spain and introduced from South Korea in 1998. It can be planted in both northern and southern China. In the north it blooms twice a year, and in the south three times a year, with a flowering period of 60-90 days. Its corolla is butterfly-shaped, pink or purplish-red, with abundant and beautiful flowers, and it has high ornamental, environmental, landscaping and economic value. It grows rapidly with a well-developed root system; a 3-year-old tree reaches 4.5-5.0 m in height, 5-7 cm in diameter and 2.0-2.5 m in crown width, and is cold-resistant, drought-resistant and salt-alkali-resistant. Propagation of the fragrant rosewood
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Golden-flower cassia is a rare tree species suitable for landscaping
Golden-flower cassia (Senna) is bred by crossing American golden-edged cassia (Senna bicapsularis) and dual-pod cassia (Senna didymobotrya), and is a deciduous small tree or shrub form. It has wide adaptability, vigorous growth, strong resistance, drought tolerance, and high-temperature tolerance. The plant height is 3 m to 4 m, with 5 to 7 pairs of leaflets. It blooms from mid-July each year, with one inflorescence per leaf, 7 to 12 flowers per inflorescence, opening from bottom to top, blooming continuously, with few leaves and many flowers. The flowers resemble wintersweet (Chimonanthus praecox), forming a tree full of blossoms; the buds are like golden beans, and the flowers are like golden butterflies. It bears pod-like fruits and belongs to the Fabaceae family. It grows vigorously, with lush branches and leaves, and a large quantity of bright, golden-yellow flowers, hence its laudatory name "treasure-gathering golden tree." Cold frost descends
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How to grow black locust seedlings? Detailed explanation of the seedling-raising techniques for the landscaping tree black locust
Black locust, also known as false acacia, is relatively drought-tolerant and can grow normally on dry sunny slopes and sandy land in North China and Northwest China. It is a good tree species in North China and Northwest China for timber, soil and water conservation, windbreak and sand fixation, and "four-side" greening. The seedling-raising techniques for black locust are introduced here: black locust is generally propagated from seed. 1. Seed treatment. Black locust seeds contain varying numbers of hard seeds, which should be treated by gradually increasing the temperature and soaking the seeds multiple times, that is, first soak the seeds in 60°C water, let them cool naturally, leave them for 24 hours, then remove the swollen seeds; for the unswollen
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Black locust is a commonly used landscaping tree species
Black locust, also called false acacia, belongs to the genus Robinia in the Fabaceae family. Native to North America, it has spread throughout vast areas of North China, Northwest China, and the southern part of Northeast China. The black locust has a tall crown and bright green leaves; when it blooms, the green and white complement each other, elegant and fragrant. It can be used as a street tree or shade tree. It is a pioneer tree species for greening industrial and mining areas and for greening barren hills and wastelands. Black locust wood is hard and resistant to water and moisture. It can be used for mine props, railway sleepers, vehicles, and agricultural timber; the leaves contain crude protein and are good feed for many livestock; the flowers are an excellent nectar source plant, and black locust honey is white and transparent, deeply welcomed by consumers
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A new variety of Chinese scholar tree, Liaohonghuai, produces red flowers
Liaohonghuai is a new scholar tree variety discovered and bred by Qiu Yanchang and other experts from the College of Agriculture, Liaocheng University (Tel: 0635-8238266) from natural populations of Chinese scholar tree (Sophora japonica). In July 2007, the variety passed the DUS substantive examination of new plant varieties organized by the Office for the Protection of New Varieties of Plants of the State Forestry Administration, and in October it was granted new plant variety rights, becoming another new Chinese scholar tree variety with independent intellectual property rights. Excellent characteristics of the variety: the flowers of the common Chinese scholar tree are white or pale yellow, with very few other
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Detailed Explanation of Seedling Raising Methods and Techniques for the Golden Tree Species Robinia pseudoacacia 'Idaho'
Robinia pseudoacacia 'Idaho' (RobiniapseudoacaciaCV.ldaho) is a variety of black locust, a deciduous tree of the legume family Papilionoideae, with a tree height of 5-8 m, a straight trunk, and two full blooming seasons per year. The first is in May, with a flowering period of about 20 d, and the second is in July-August, with a flowering period of 40 d. The flowering period is long, the number of flowers is large, the flowers are large, and the flower shape is beautiful. It is a landscaping tree species introduced to China in recent years. It has vigorous growth, a well-developed root system, and strong stress resistance. It grows noticeably better than black locust on dry mountain land, and
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What kind of tree species is the twice-blooming black locust (Robinia pseudoacacia 'Decaisneana')?
The twice-blooming black locust is a rare landscaping tree species, a tree. It was introduced to Henan from the Netherlands in 1996. It grows and develops normally in Henan. Its rarity lies in that it blooms twice a year: the first bloom occurs around May 1, and the second bloom occurs around July 10. The flowers are large and pink, with a flower length of 3.7 cm, and each blooming period lasts about 15 days. The young leaves are yellow with a hint of red, and at the end of growth the seedling stem turns reddish-brown. A one-year-old seedling grows about 3 m tall, making it an excellent street tree and garden landscaping tree species.
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