Rhododendron henryi
Family Rhododendron (Rhododendron)
Morphological characteristics of evergreen shrubs. It is 4m high. Leaf blade Obovate to oblanceolate, abaxially with small scales. 3. Flowers terminal, Corolla white with pink, ca. 4.5cm. The florescence is from April to May.
Like warm and humid, like light, slightly resistant to barren. The plant is endemic to Xizang. Produces the Yarlung Zangbo River canyon, only born in the forest edge shrub on the hillside about 2000m above sea level.
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Star anise gold plate, sprinkled peach leaf coral, rhododendron scorched leaf disease
Star anise and Sajin peach leaf corals are negative plants and are not tolerant to strong sunlight. Midsummer poison causes severe burns of their young leaves, causing curling and withering of young leaves or scorching leaves, seriously affecting plant growth, and some pathogens take advantage of the deficiency to further cause infectious diseases. the fruiting body of the disease can be seen in some disease spots. Rhododendron is a semi-negative plant, the cause of scorched leaf disease is similar to the above, the occurrence of tender leaves is more serious, the disease caused a large number of abnormal defoliation. Prevention and control method: ⑴ has more sudden and strong wind and rain in midsummer.
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The production of rhododendron for greening is the direction, don't use wild piles.
In view of the phenomenon that some seedling growers use wild cuckoos as rootstocks for engineering modeling cuckoos, Li Yong, secretary general of the cuckoo branch of the China Flower Association, said recently: modeling is an effective way to increase the added value of cuckoos for greening, but the use of wild piles for grafting is not recommended. It is understood that although there are not many nurseries mainly for planting cuckoos for greening projects in China, annual supply has been achieved in many places in the south. Therefore, without being affected by the disaster, the cuckoos used for greening in China are basically saturated.
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