Planting Technology Lists
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Control methods of APHIS gossypii in ornamental trees
Distribution and damage of oleander aphid AphisneriiBoyerdeFonscolomde, also known as oleander yellow aphid. Belongs to Homoptera, Aphididae. Distributed in Changchun, Shenyang, Baotou, Taiyuan, Ningbo, Guiyang and Urumqi. Prickling is harmful to the new shoots and tender leaves of oleander plants, affecting the normal growth and flowering of plants. Morphological characteristics wingless female aphid body length 2 mm, body apricot yellow, antennae dark brown, foot black, tail tongue-shaped, with 11-14 curls. The winged female aphid is oval with black head and chest.
2019-01-16 -
Brown spot of oleander, a medicinal plant
Oleander scientific name NeriumindicumMill. It belongs to the woody plant of Apocynaceae. Used in medicine with leaves and flowers; poisonous. It has the effect of strengthening heart and diuresis, eliminating phlegm and killing insects. It is distributed in most provinces and autonomous regions of the country. The main symptoms were harmful leaves, the purplish red dots appeared at the tip or edge of the leaves, and then expanded to form round, semicircular or irregular brown spots. There are wheel marks on the disease spot. In the later stage, the center retreated to white, and the edge was wider in reddish brown. When the humidity is high, the grayish brown mildew layer can grow on both sides of the disease spot, that is, the conidiophores and conidia of the pathogen. Disease
2019-01-16 -
Medicinal flowers: oleander
First, the source is NeriumindicumMill. Alias willow leaf peach, half a year red, peach bamboo, pen peach. It has been introduced into our country for a long time, and the bamboo was recorded in the Pingfang Spectrum of the Ming Dynasty. Although our country is not the hometown of oleander, it has been cultivated for more than 500 years. It is easy to grow oleander, so potted plants are very common in the south and north. It can be cultivated in open fields in the south of the Yangtze River Basin in China, and it is close to wild in Chongqing.
2019-01-16 -
How to trim and shape potted oleander
Oleander leaves three whorls, is a typical three-branched branch, each pruned will produce three new branches from the stem node. People often make use of this branch of it to carry out shaping and pruning, so that there are 3 main branches on each trunk and 3 branches on each main branch, that is, the tree shape of "three rights and nine tops". Potted oleander can be pruned for the first time according to plant height and personal preference, leaving the trunk 30-40 cm to top to promote its sprouting lateral branches. When the new technician reaches 4mi 6cm long, choose 3 sturdy branches with appropriate positions, and the rest
2019-01-16 -
Diagnosis and treatment of oleander poisoning in cattle
Oleander is an ornamental plant, which is often planted by local farmers. According to relevant data, oleander contains cardiotonic glycosides, which has stimulating effect, which can cause hemorrhagic gastroenteritis, increase the concentration of sodium ion and calcium ion and decrease the concentration of potassium ion in myocardial cells. as a result, a series of pathological phenomena such as atrial fibrillation and arrhythmia occur in animals. 1. The incidence in July 2002, a 3-year-old yellow cow in Gumudi Town, Miquan City, ate oleander in the courtyard. Two hours later, the cow developed abdominal pain and got up and lay down.
2019-01-16 -
Open field flower cuttings harvesting and freshness-oleander
[Other middle names] large node swelling, called winter, nine node swelling, Kunayi, willow peach, water licorice [family] oleander family oleander [origin] Nepal, India, Iran and other places [plant characteristics] oleander is evergreen shrub or small tree. Plant height 5 - 6 m. With milk. Single whorl or opposite, linear-lanceolate, 10 - 25 cm long, entire, leathery. [Cuttings Harvest] Harvest parts are the first annual branches of oleander. Harvest should be carried out in May to July every year, in order to obtain ideal
2019-01-16 -
Oleander planting and cultivation
1. The planting time is in spring. It is cultivated in the open field in the Yellow River basin and its southern area, potted in the cold area of the north, and overwintered indoors. When transplanting, it must be planted with soil balls. The planting site should be sunny and without stagnant water. Summer can also be transplanted, but need to trim some branches, cut off the right amount of leaves, in order to reduce water swallow hair and promote survival. The pot is printed and changed every 2-3 times, and 6 parts of rotten leaf soil and 4 parts of river sand mixed culture soil are selected on the pot, and the horseshoe piece can also be used as base fertilizer before planting. Cut short before planting
2019-01-16 -
How to cultivate and manage oleander?
Oleander, also known as peach, half a year red, willow peach, native to Iran and India, is an evergreen shrub or small tree of oleander family. The height of the short type suitable for potted plants is 60-80 cm, and the tall type can be more than 3 meters long. It blossoms in late May every year, and the flowering period is very long, up to lO month. There are pink, pink, yellow, white and so on, the most common is peach. Flowers argue heavily, there is a delicate fragrance. The annual flowering season, green leaves and safflower contrast, gorgeous and handsome, not only can watch the leaves, but also can enjoy the flowers, with the beauty of peach and bamboo. Oleander can protect the environment and purify the air.
2019-01-16 -
Control of aphids on oleander
Oleander aphid, also known as wood cotton aphid, is homoptera, aphids. Distribution throughout southern China, as well as Southeast Asia, Africa, South America countries. Damage form: damage oleander with aphid or aphid, growth inhibition of injured new shoots, blackening of upper and lower leaves, incomplete development of buds and flowers, abnormal opening, affecting ornamental value. Morphological characteristics: wingless parthenogenetic aphid body ovoid, long 2.3 mm, yellow body, such as banana skin. Frontal tubercle raised, higher than the middle frontal tubercle; dark antennae, with thick tile; beak up to the middle foot base segment. ventral tube long cylindrical, dark
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Morphological characteristics of oleander
Evergreen shrubs or small trees. The plant height is 1.5-6 meters and the plant type is erect. The stem is smooth, the branching force is strong, the old branch is grayish brown, the new branch is purple brown or green. Simple whorl or opposite, lanceolate, 10-25 cm long, leathery, entire, midrib obvious, with a small amount of white milk in branches and leaves. Cymes terminal, Corolla funnelform, 5-lobed, flowers 3-5 cm in diameter, pink, crimson, red, white and other colors. Single or double, special aroma. The florescence is from June to October. Very fruity, long horned. Fruit ripening stage 12
2019-01-16