Planting Technology Lists
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Wonderful treatment of yellow poplar and green hedge shell insects
In recent years, the occurrence of shell insects in gardens is more common, among which the harm of boxwood hedge is the most serious. After years of exploration and experiments, the author has mastered the following technical essentials: (1) before spring germination, spraying 3-5 Bomedo stone-sulfur mixture or 3-5% diesel emulsion can eliminate overwintering nymphs. (2) after the female shell insects lay eggs and gain weight, they should be washed away from the branches with a high-pressure faucet before laying eggs, and then protected by chemicals. (3) it is beneficial to re-prune the hedge before hatching.
2019-01-16 -
A New Variety of Greening seedlings Hokkaido Yellow Poplar
Hokkaido boxwood (EuonymusjaplmicusL.): Celastraceae, genus Euonymus. It is originally from Hokkaido, Japan. Evergreen broad-leaved tree, tall and straight, evergreen all the year round, resistant to shaping and pruning. After introduction and domestication in Beijing, it has become a new tree species with strong cold resistance and drought tolerance to adapt to the northern climate. Northern China is dry, cold and windy in winter and spring, and there is an extreme shortage of cold-resistant and drought-tolerant evergreen broad-leaved trees. However, Populus tomentosa Hokkaido has good cold resistance and drought resistance, can endure low temperature of-23 ℃, and its drought tolerance is stronger than that of common boxwood. Luxuriant branches and leaves, four
2019-01-16 -
Application of Phnom Penh boxwood in Garden Color Block
The use of color is indispensable in garden construction. at present, red, yellow and green shrubs are often used to form color blocks in order to enrich the color composition of the garden. Because there are few red and yellow plants, red shrubs are often used with safflower trees, yellow shrubs with golden leaves, and green shrubs with rich varieties, such as guazihuang poplar, tortoise shell holly and so on. The golden leaf privet commonly used in small yellow shrubs has its obvious shortcomings: Ligustrum lucidum is a deciduous shrub of the genus Ligustrum lucidum of Oleaceae, which is light-loving, slightly shade-tolerant and drought-intolerant.
2019-01-16 -
Huang Ye Jin Li Huang Poplar
Yellow leaf golden mature yellow poplar Buxussempervirens'LatifoliaMaculata', evergreen shrub, 30-40cm in height, compact in shape, bright yellow in new leaves, dark green with yellow spots and glossy after maturity. Cold-resistant, shade-resistant, suitable for loose and fertile soil, can also grow in alkaline soil, do not have high requirements for moisture, can maintain half of the soil moisture. It has strong resistance to toxic gases such as sulfur dioxide, chlorine, hydrogen sulfide and hydrogen fluoride. This species is a cultivated species.
2019-01-16 -
Euonymus japonica
Latin name: BuxusL. English name: Box.BOX-wood introduction: shrubs or small trees. Leaves opposite, entire, leathery, pinnately veined, shortly stipitate. Inflorescences short racemose or capitate, androgynous, apical 1 female, remaining male; male with 1 bracteole, sepals 4, stamens 4; female flowers with 3 bracteoles, sepals 6, ovary 3-loculed, style 3. Capsule, style persistent, 3-valved. The seeds are black and shiny. About 70 species. About 30% in our country
2019-01-16 -
Why did boxwood turn reddish brown?
Q: I used the brown soil that I planted with tea trees to plant small yellow poplars last spring. Months have passed since then, and the small yellow poplars have gradually withered and become dead. I don't know why. How to save it? Answer: most of the tea trees cultivated in the south are acid yellow brown soil, whether it is cultivated big leaf yellow poplar or melon seed yellow poplar, sparrow tongue yellow poplar, etc., there is no soil unsuitable problem. I guess your unit should plant guazihuang poplar. Due to the dry weather after entering autumn, coupled with the low temperature and cold weather in winter, some yellow poplar seedlings that have not yet grown roots have yet to grow.
2019-01-16 -
Japanese turtle wax of yellow poplar
It occurs one generation a year, overwintering with fertilized female adults on shoots. Morphological features: female adult, wax shell gray or slightly fleshy red, oval. Male adult with a dark brown or brown body and a deep dorsal plate of the head and chest. Nymph, wax shell oval to oval, back slightly raised. Prevention and control methods: (1) Quarantine measures: when purchasing seedlings in different places, plant quarantine procedures must be strictly carried out to prevent the artificial spread of pests. (2) strengthening garden maintenance and management: through maintenance and management, to create environmental conditions that are not suitable for the survival of shell insects. Carry out rotation planting and clear the garden in time
2019-01-16 -
Production of boxwood bonsai
(1) Botanical knowledge belongs to Populus tomentosa. Evergreen shrubs or small trees, dense branches, branchlets quadrangular, branches and leaves towering on clusters. Leaves opposite, leathery, elliptic or Obovate, apex rounded or retuse, base cuneate, surface bright green, abaxially yellowish green. Flowers clustered in leaf axils or branches, blooming in April, yellowish green. Capsule ovoid. Main species and varieties 1. Populus tomentosa, also known as Populus tomentosa. Evergreen dwarf shrubs, densely branched. Leaves opposite, leathery, spatulate or oblanceolate, surface
2019-01-16 -
Control measures of yellow poplar silk borer
Populus tomentosa is the main garden evergreen ornamental plant. In recent years, due to carelessness in introduction, the yellow poplar silk borer is harmful to two kinds of small leaves of Euonymus tomentosa and Euonymus tomentosa from south to north. From the larvae feeding on the mesophyll to spinning and nesting the leaves together, it seriously affected the growth of Populus tomentosa, and even killed the whole plant. Morphological characteristics and occurrence regularity: the adult body is white-brown, the wing is white and translucent, the leading edge of the front wing is brown, there is a fine white spot and curved crescent white spot in the middle chamber, and there is a brown band on the outer edge of the hind wing. The head of the larva is dark brown and the carcass is dark green.
2019-01-16 -
Control of Chilo suppressalis in Yellow Poplar
Lepidoptera: Pyralidae is one of the leaf-eating pests on hedge plants such as Populus tomentosa, Populus tomentosa and so on. It is mainly harmful to the top tips and leaves of hedge plants, resulting in bare branches and leaves, which greatly reduces the greening and ornamental value. In recent years, the harm has been aggravated year by year in all parts of the country. Distribution and damage are distributed in Sichuan, Guizhou, Hubei, Hunan, Guangdong, Fujian, Jiangxi, Zhejiang, Shanghai, Jiangsu, Shandong, Hebei, Shaanxi, Qinghai, Xizang. The larvae spit silk and adorn the leaves to nest and feed.
2019-01-16