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Differences Between London Plane, Chinese Parasol Tree and Paulownia - A Quick Guide to Telling Them Apart
In the vigorous development of urban greening and landscaping, identifying and selecting tree species is an important task. The London plane, paulownia and Chinese parasol tree may look like three sisters in urban landscaping, but in fact they belong to different families and genera, and differ greatly in morphology. The London plane is a large deciduous tree of the genus Platanus in the family Platanaceae. Its name comes from its leaves resembling those of the Chinese parasol tree; it was introduced from abroad in old China and was first planted in the French concession of Shanghai, hence the name "fa tong" (French plane). The London plane is actually a collective name for Platanus orientalis and Platanus acerifolia of the genus Platanus. Platanus orientalis reaches 30 m tall, with dark gray bark that peels off in thin flakes, revealing a greenish-white inner bark. Young branches are covered with yellow-brown stellate hairs. Leaves are 8 to 16 cm long and 9 to 18 cm wide, with 5 to 7 deep lobes reaching to or below the middle, the lobes narrow and long, covered with gray-yellow stellate hairs when young and later shedding. The common stalk bears spherical fruit heads 2 to 2.5 cm in diameter, with spiny styles 3 to 4 mm long; flowering in May, fruiting in September to October. Platanus acerifolia is a hybrid of Platanus orientalis and Platanus occidentalis, bred in London, England. It reaches 35 m tall, with bark peeling off in thin flakes and a pale greenish-white inner bark. Young branches and leaves are densely covered with pale brownish-yellow stellate hairs. Leaves are 10 to 24 cm long and 12 to 25 cm wide, with a flat or slightly heart-shaped base, 3 to 5 deep lobes, the middle lobe nearly equal in length and width, with entire or sparsely coarse-toothed margins. Fruit heads are about 2.5 cm in diameter, with spiny styles 2 to 3 mm long. Flowering in April to May, fruiting in September to October.
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Differences Between Herbicide Damage and Fertilizer Damage in Azaleas and How to Tell Them Apart
When azaleas suffer herbicide damage and fertilizer damage, they share some characteristics but also differ in their manifestations. What they have in common is that both are physiological injuries, causing leaves to wither and drop within a short time, but the patches do not slowly expand, nor do pathogens appear on them. The differences between herbicide damage and fertilizer damage are as follows: when azaleas suffer herbicide damage, they show sensitivity to a certain pesticide or a certain class of pesticides. For example, after a pesticide is sprayed on the leaves, within a few days the parts of the leaves touched by the spray solution turn yellow, wither and drop, seriously affecting the plant's growth, but it will not
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Analysis of the Relationship Between Rusty Patches on Pear Fruit Surfaces and Pesticide Use
Irregular rust-colored patches often appear on pear fruit surfaces, affecting the appearance quality of the fruit. Fruit surface rust is generally called fruit russeting, which is formed by the gradual thickening and suberization of cell walls, with epidermal cells and the cuticle rupturing and exposing the surface, forming brown rust-colored patches. Another type of rusty patch is actually "pesticide russeting," caused by improper pesticide use or excessive pressure when spraying pesticides. There is also a type called "water russeting," mainly caused by poor environmental conditions, damp and rainy weather, insufficient light, and mold parasitizing the fruit surface. The occurrence of fruit russeting is related to many factors in cultivation. Such as variety, strain differences
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Duck disease prevention and control requires attention during the transition between summer and autumn
Currently we are in the transition between summer and autumn, with large temperature fluctuations, and various pathogens easily breed and multiply. This is a season when livestock, poultry, fish and other animals are prone to disease. Neglecting prevention at this time can easily trigger disease outbreaks, causing death of livestock, poultry and fish from mass and epidemic diseases, resulting in relatively large losses. Therefore, the symptoms and prevention and treatment methods of common duck diseases during this period are introduced below. 1. Duck plague. It occurs frequently in spring, summer and autumn, with high morbidity and mortality. Prevention: inject duck plague vaccine at 10 to 15 days of age.
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What are the similarities and differences between Chinese and American cotton grading standards?
The United States is a major cotton-producing and cotton-consuming country, with half of its annual cotton production used for domestic consumption and half for export. As a result, American cotton standards have an important influence worldwide and are used by 24 countries and regions; they are also known as the universal cotton standards. Below is a brief introduction to the similarities and differences between Chinese and American cotton grading standards: Cotton grade is a reflection of the overall quality performance of cotton, and the cotton standards of most cotton-producing countries in the world include a cotton grade inspection item. In the U.S. cotton standard
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How large are the DNA differences between different breeds of dogs?
In an issue of the journal Science, researchers wrote that the genetic differences between different breeds of dogs are unusually pronounced, so much so that they can determine a dog's breed based solely on its DNA. This phenomenon is related to humans controlling inbreeding in dogs over the past 300 years to obtain different dog characteristics. This shows that humans can indeed play an important role in the field of species evolution. When researchers analyzed the DNA genetic code of dogs in an attempt to further understand the genetic factors of human diseases, they were surprised to find that, in just the past few hundred years, not
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Differences Between the Brown Marmorated Stink Bug and the Yellow-Spotted Stink Bug and Their Identification
The brown marmorated stink bug and the yellow-spotted stink bug both belong to the order Hemiptera, superfamily Pentatomoidea, family Pentatomidae, and both are pests that cause relatively serious damage to ornamental garden plants. The brown marmorated stink bug, scientific name Halyomorpha picus, is also known as the stinkwood stink bug, the stink bug, and the tea-colored stink bug. Host: this species has a wide diet and harms many garden plants such as black locust, elm, fig, lilac, pomegranate, paulownia, peach, and crabapple. Damage symptoms: adults and nymphs suck the sap of tender leaves, tender stems, and fruits, and in severe cases cause leaves to turn yellow and dry, and to fall
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What is the relationship between the density of a dog's coat and body temperature?
While wandering through several dog forums, I noticed a common misunderstanding: many people believe that although some dogs have thick coats, the fur acts as "insulation" in hot weather, so it should not be clipped. 1. Although a dog's body has no sweat glands, it is still constantly releasing heat to the outside; the lower the outside temperature is compared with body temperature, the easier it is for heat to be released. A dog's body temperature is higher than room temperature in most cases, and summer temperatures are already high to begin with, so if a dog's coat is too thick, it is definitely not good for the body's heat dissipation. There are more than
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Differences Between Pleione and Aspidistra and How to Identify Them
Scientific name: Pleione bulbocodioides. Alternative name: Yiyelan (one-leaf orchid). Family and genus: Orchidaceae, perennial herb. Morphological features: When Pleione blooms, a single leaf grows beside the flower, which is why it is also called Yiyelan (one-leaf orchid), while the name Pleione comes from its garlic-like pseudobulb. It is terrestrial or epiphytic; the pseudobulb is ovoid or conical, 2 cm to 3 cm long; the flowering period is April to June; the upright inflorescence is 15 cm tall to
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What is the difference between Yulan magnolia and purple-flowered Yulan magnolia
Yulan magnolia, also known as white Yulan magnolia, is a deciduous tree of the Magnolia genus, with an oval or flattened-spherical crown and grayish-brown bark. Its single leaves are alternate, obovate-rounded, with a abruptly pointed tip. The flowers are terminal, with flower buds formed in the previous autumn, blooming before the leaves. The flowers are white, fragrant, 10-16 cm in diameter, upright bell-shaped, with 9 tepals, obovate, white, arranged in whorls of three, and numerous stamens and pistils. Its main variety is the purple-flowered Yulan magnolia (var. FurFurascens), whose tepals are purplish-red outside and clear white inside. Both magnolias are highly favored by people. Yu
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