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Management methods and technical key points after rhododendrons bloom
Pruning and shaping: after rhododendrons finish blooming, the spent flowers generally need to be removed by hand, followed by appropriate thinning of branches, cutting away overly dense branches, and letting them send out new growth. Fertilizer and water management: in northern regions, water is on the alkaline side and relatively hard, and watering plants with it over the long term can easily cause soil alkalization, affecting flower growth. Therefore, before watering, the water should be stored in a container for more than 24 hours and used after the chlorine has evaporated. Alternatively, water mixed with an appropriate amount of ferrous sulfate or edible white vinegar can be applied about once every 10 days. Rhododendrons do not need much fertilizer, and it is generally applied along with watering. You can
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Identification and Control Methods of Common Fungal Diseases of Azaleas
Among the common azalea diseases, the main fungal diseases include azalea powdery mildew, rust, gray leaf spot, blight, and leaf gall, among others. These diseases mainly affect the leaves, young branches, buds and floral organs of azaleas, and when not controlled in time they often cause great losses. (1) The main differences among the following diseases are: 1. Azalea powdery mildew: generally occurs in the middle and late stages of growth, initially appearing as chlorotic spots, then growing a white mycelial layer and producing large amounts of powdery conidial layers, turning grayish brown in the later stage 2. Azalea rust: in the early stage, transparent golden or
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Occurrence Patterns and Control Methods of the Azalea Lace Bug
The azalea lace bug (Stephanitis scotti) belongs to the order Hemiptera, family Tingidae. It is extremely widely distributed and is a major pest of azalea flowers. Its host plants are azaleas (Rhododendron spp.) and pieris (Pieris spp.), and it seriously affects the growth, reproduction and ornamental value of flowers in both genera. 1. Damage symptoms The azalea lace bug mainly damages the leaves of host plants as nymphs and adults, sucking sap and excreting feces, causing the undersides of the leaves to appear rust-yellow and the upper surfaces to show needle-point-like white spots; in severe cases the entire leaf loses its green color and turns pale, affecting plant
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Harvesting and Fresh-keeping Methods for Black-eyed Susan Cut Flowers
[Other Chinese Names]Dui Xin Ju, Black-eyed Susan, Black-eyed Coneflower, Black-eyed Susan, Black-eyed Coneflower, Sunflower, Featherleaf Coneflower[Family and Genus]Asteraceae, Rudbeckia[Place of Origin]North America[Plant Characteristics]Black-eyed Susan is a perennial herbaceous plant with persistent roots. The plant height is 30-120 cm. The flower head is 3-5 cm in diameter; the ray florets are bright yellow; the disc florets are purple-black, densely arranged in a spherical shape. The natural flowering period is from June to September.[Cut Flower Harvesting]The harvested part is the flower head of Black-eyed Susan with its stem. It can be harvested after most of the ray florets have opened, and the operation
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Detailed Explanation of Rapid Cutting Propagation Methods and Techniques for Yew
Yew is a national first-class protected plant, an evergreen tree, mostly distributed in the Northern Hemisphere. From its bark, stems, leaves and roots, a substance with special efficacy in treating cancer can be extracted - taxol. We successfully introduced yew in the spring of 1996. Its cutting propagation techniques are briefly described as follows: 1. Cutting period. In our area, yew can be propagated by cuttings 3 times a year, in March, July and November. 2. Building a cutting bed. If the number of yew cuttings is small, pots can be used; if the number is large, a cutting bed should be built. Cutting
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How to propagate the Chinese yew (Taxus chinensis)? Introduction to common propagation methods and techniques
To propagate the Chinese yew, you should first select good soil and a suitable plot, choosing loose, humus-rich, neutral or slightly acidic high-mountain terraces, and the deep, moist brown earth and dark brown earth on both banks of gullies and streams. Deep plow, level, and dig holes at a spacing of 0.4 m x 1.0 m or 0.4 m x 0.4 m, with holes 40 cm deep, ready for planting. The propagation methods of the Chinese yew include seed propagation and cutting propagation, mainly by raising seedlings and transplanting. I. Seed seedling raising 1. Seed collection and germination in mid-to-late October, when the Chinese yew fruit
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What are the propagation methods for yew? Teach you how to grow seedlings easily
1. Seed propagation: choose moist, fertile dark brown soil on a shady slope, stratify to sprout in autumn and spring, and drill-sow; seeds with the aril removed undergo wet sand stratification from November to April of the 3rd year, a total of 19 months, until the embryo turns yellow and the seed begins to germinate and crack; rub off the aril, soak in 100 ug/g of 920 for 1 hour, and after half a year of wet sand stratification they can germinate. 2. Cutting propagation: mix garden soil, sand and charcoal ash, build a shade shed with 30 percent light transmittance, and cover with plastic film to retain moisture. First cut 1-year-old branches into 10-15 cm cuttings; the cuttings are first treated with 10
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Introduction to the Propagation Methods of the Chinese Yew (Taxus wallichiana var. mairei)
Select a suitable nursery site: choose a fertile, loose, neutral or slightly acidic soil plot with good drainage, preferably a plot within woodland or a semi-shaded fertile plot. Apply sufficient base fertilizer, rake level, and prepare the beds ready for planting. Seed propagation: the seeds mature in October. After timely harvesting, place them in a mixture of water and fine sand (water-to-sand ratio 2:1). Rub the seeds on a washboard to remove the outer seed coat and wear down the hard fleshy seed coat. Choose a shady, dry plot that does not accumulate water, dig a pit, and store the seeds in the pit mixed with damp river sand at a 1:2 ratio. Take them out in March of the following year
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What are the propagation methods for Golden Privet (Ligustrum sinense 'Variegatum')?
Golden Privet is generally propagated by softwood cuttings, either in containers or directly in the ground. Container cuttings cost more, so here we mainly introduce the single-bud ground-cutting method under a small bamboo arch shelter. Cutting time: it is best done when new shoot growth is slow, that is, from May to October, and preferably during the rainy season. Site selection and soil preparation: choose a loose, fertile, flat plot with good drainage, apply 125 kg of superphosphate per mu, deep plow 15 cm, then break up the soil and rake it level, make raised beds 1.2 m wide with furrows 20 cm deep. Cutting preparation: first select good mother trees. Cuttings should
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Planting Methods and Care Tips for Golden Privet
Golden Privet - A new variety of lemon-yellow colorful-leaf flowering shrub, Golden Privet belongs to the genus Ligustrum in the family Oleaceae and is a sister variety of Ligustrum japonicum 'Howardii'. It was successfully bred in 2003. I. Ecological Habits: Golden Privet is a deciduous or semi-evergreen shrub, with papery-leathery leaves, elliptical, hairless, pointed at the tip, wedge-shaped at the base; the petioles have short pubescence. The flowers are white, fragrant, and sessile. It likes sunlight and is slightly shade-tolerant, with strong disease resistance and cold resistance. Its application range is extremely wide, suitable for planting in North China, the Yangtze River basin and the Southwest region. North
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