Planting Technology Lists
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Cultivation of Auricularia auricula in rice straw sand bed
Fungus mites, commonly known as "fungus lice", belong to the phylum Arachnida, Arachnida and Acarina, which is not only the most harmful to edible mushroom seed production and cultivation, but also harmful to personnel. Its harm is divided into three aspects: first, bacterial mites directly feed on hyphae, resulting in no bacteria after inoculation or "disinfection" after inoculation, resulting in culture.
2018-07-19 -
Poplar bark rot
Distribution and harm of poplar skin rot, that is, poplar rot. Poplar cultivation areas occur in China, but they are mainly distributed in Northeast, Northwest, North China and other areas. It is a common and frequently-occurring disease of poplars in parks, green spaces, street trees and nurseries, which often causes a large number of street trees to die, especially the newly transplanted poplars. The disease.
2018-07-19 -
Identification and control of poplar canker
The typical symptoms of poplar canker disease can be divided into two types: ulcer type and withered tip type. In the early stage of ulcerative disease, the infected trunk bark appears brown round or oval, showing waterlogged or blister-like disease spots, hand pressure means liquid outflow, after blister rupture, the liquid flows out with wine dregs, the disease part shrinks and sinks into ulcer spots, and the cortex of the lesions turns brown.
2018-07-19 -
Identification and Control of Black spot of Poplar
Poplar black spot, also known as poplar brown spot, the disease can infect a variety of poplar, seedlings, young trees, big trees can be susceptible, seriously affect the normal growth of trees, resulting in economic losses. Symptoms: generally occur in leaf shoots and ears, spread from top to bottom, mainly harm to leaves, disease.
2018-07-19 -
Occurrence regularity and control methods of black spot of poplar
Poplar black spot, also known as poplar brown spot, generally occurs on the tender shoots and ears of poplars and spreads from top to bottom, thinking that it is mainly harmful to the leaves. At the initial stage of the disease, needlelike sunken and shiny spots appeared on the back of the leaves, and then the disease spots expanded to about 1 mm. Black, slightly raised, brown spots also appeared on the front of the leaves for 5-6 days.
2018-07-19 -
Identification and Control of Brown spot of Poplar
Poplar brown spot is a common leaf disease, which mainly harms Populus tomentosa, Populus tomentosa, steamed bread willow and so on. At the initial stage of the disease, there are small yellow-brown spots on the surface, which gradually expand, the edge color is lighter and neat, to the later stage, the center of the lesion becomes brown, and there are black spots on it. After the black spot breaks, the conidia are released and blown by the wind.
2018-07-19 -
Skin rot of poplar and its control methods
Skin rot, also known as rot, is mainly distributed in Northeast, Northwest and North China. It mainly harms the branches of trees and is highly contagious. once the disease is prevalent, it often causes a large area of forest death and great losses. In recent years, due to large-scale planting of poplar, the disease often occurs everywhere, a single poplar variety is planted.
2018-07-19 -
The rot disease of poplar and its control
Poplar is a general name for deciduous trees of the genus Populus in the family Populus. There are more than 100 species in all genera, mainly distributed in temperate zone, cold zone, Mediterranean coastal countries and Middle East in Europe, Asia and North America. There are more than 50 species in China. Wood is used as civil building materials, producing furniture, matchsticks, sawn timber, paper, etc., but also man-made.
2018-07-19 -
Poplar pest control
Poplar pests can be divided into the following categories in terms of damage methods and control measures: first, leaf-eating pests: mainly poplar fan boat moth, poplar small boat moth, poplar two-tail boat moth, poplar leaf borer, diamondback moth, beetle and so on. Poplar is damaged by the above pests from seedling stage to mature stage, causing leaf defect or eating up.
2018-07-19 -
Control of common insect pests in poplar
In recent years, poplar canker disease is common, and the incidence of serious land has reached more than 30%. Canker seriously weakens the tree potential and inhibits growth. If it is not controlled in time, it will cause greater economic losses to growers. Disease symptoms canker mainly harms tree trunks, is a chronic disease, the initial in the skin.
2018-07-19