Planting Technology Lists
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Control of Buxus inchworm
Occurrence regularity: the larva eats leaves and occurs for three generations in Hunan. The overwintering adults Eclosion and oviposition in mid-April, then pupation in late April, Eclosion in mid-June, second generation damage in late June, pupation in early August, Eclosion in mid-August, damage to the third generation in late August. The worst victims are the first and second generations. The damage is the most serious in the mild climate and abundant rainfall season, which can gnaw off the leaves of the whole plant in 2 to 3 days, making the plant bald. In
2019-01-11 -
Disease condition of Euonymus tomentosa
First, symptoms: in the early stage of the disease, there are small yellow spots on the leaves, which gradually become yellowish brown and enlarge into round or irregular spots with a diameter of 2 mm to 10 mm. The disease spot is grayish brown or grayish white in the later stage, and the edge is deep. There are many small black spots on the disease spot, and when the disease spot is serious, the disease spot is connected into one piece, and the leaves are withered and yellow. Second, the law of the disease: the pathogen overwintered on the diseased or fallen leaves in the form of hyphae, which was the source of primary infection. Spores are transmitted by wind and rain. As the temperature rises in the following spring, conidia are produced.
2019-01-11 -
Diseases and insect pests of Euonymus tomentosa and its control
As an evergreen shrub, Euonymus tomentosa is one of the most commonly used greening plants in urban streets, squares, parks, unit courtyards and residential green spaces. Because of its different growth environment and extensive management measures, the occurrence of diseases and insect pests is also serious, which seriously affects the urban greening landscape. To investigate and study the occurrence characteristics of main diseases and insect pests of Euonymus tomentosa, the prevention and control measures can be formulated and implemented according to local conditions, so as to control the harm and beautify the environment. 1. Occurrence characteristics of main diseases and insect pests (1) powdery mildew of Euonymus tomentosa. Powdery mildew is a big leaf.
2019-01-11 -
Occurrence and control of Populus tomentosa
The big-leaf yellow spot moth belongs to Lepidoptera and Lepidoptera. The insect harms the tender shoots of the tender leaves of the host with larvae, nibbling away at the leaves, forming bald branches and rods in serious cases, and even causing the whole piece to die. Plutella xylostella occurs one generation a year in Jining area, overwintering with eggs on the shoot of the host. The hatching time of overwintering eggs is mostly in the middle or late March, and the leeward and sunny places can hatch 5-7 days earlier, generally reaching the hatching peak around March 20, and the same egg block can be hatched in 2-3 days, when the new leaves of Euonymus tomentosa are pulled out. From late April to early May, the old and the young
2019-01-11 -
Populus tomentosa
Scientific name: PryeriasinicaMoore morphological characteristics: the adult is about 12 mm long, the wingspan is about 30 mm, the head, chest and antennae are black-brown, the antennae of male moths are feathery and the antennae of female moths are pectinate. There are orange long hairs on both sides of the chest, back and abdomen, and the front wings are translucent, but the wing base 1 and 3 are yellow, the rest are dark gray, the veins of the wings are dark brown, and the background of the hind wings is yellow. The egg is oval and flat, yellowish white at first birth, and then light brown. The larva is about 20 mm long, with a small head, dark brown, yellowish green and white on the side and back.
2019-01-11 -
Control and identification of white silk disease of Populus tomentosa
The occurrence of white silk disease of Populus tomentosa is caused by fungi, which is destructive and spreads rapidly. if it is not controlled, it may lead to the death of all seedlings. According to the previous work, we summarized the characteristics and control methods of white silk disease of Euonymus tomentosa. Symptoms: at the beginning of the disease, the stem or leaf base turned brown and rotted near the soil, and after several days of sunlight exposure, white silk-like mycelium appeared on the disease part and soil surface, which spread radially in the rhizosphere soil, and brown grew on the near-surface stem in the later stage. Rapeseed sclerotia often causes death of the whole plant.
2019-01-11 -
Control Techniques of Powdery Mildew of Euonymus Japonica
Powdery mildew occurs widely, which affects its ornamental quality and restricts its application in landscaping. Symptoms: Powdery mildew mainly harms the leaves of Euonymus Japonica, and the disease spots are mostly distributed on the leaves, resulting in powdery mildew spots. When the disease is serious, leaf back and new shoots can also occur, resulting in leaf shrinkage and deformity, new shoots twisted, atrophy and stop growing, and cause deciduous and withered shoots. At the beginning of the disease, many white round spots were scattered on the leaves, and as the spots gradually expanded, irregular large spots formed, even occupying all leaves. For example, the disease spot table
2019-01-11 -
What is the symptom of big leaf yellow poplar powdery mildew?
Symptoms of powdery mildew of Euonymus tomentosa: the powdery mildew is mostly distributed on the front of the leaves, and some grow on the back of the leaves. A single lesion is round and white, and it is irregular after enlargement and healing. The primary disease showed yellow round spots when the superficial white powdery hyphae and spore layer were wiped off. In severe cases, the disease of new shoots can reach 100%. Sometimes the diseased leaves are shrunk and the diseased tips are twisted and atrophied.
2019-01-11 -
Populus tomentosa and Fufang tree
Alias: Zhengmu Fufang holly Euonymus family name: Celastraceae category: shrub Latin name: Euonymusjaponicus morphological characteristics: evergreen shrubs or small trees. It is 5-6 meters high. Branchlets green, slightly 4-angled. Leaves opposite, elliptic or Obovate, margin with obtuse teeth, surface dark green, glossy, leathery. May flowering, flowers green and white, 5-12 Cymes, axillary at the top of branches. The fruit is ripe in October, the capsule is oblate, pink-green, 4-valved after maturity, the aril is orange-red.
2019-01-11 -
Cultivation techniques of Morchella
Morchella is one of the most valuable edible fungi in the world, which is an advanced nutritional tonic. It has the functions of tonifying kidney, strengthening yang, tonifying brain and refreshing, and can obviously improve impotence and sexual dysfunction. Long-term consumption can prevent cancer, anti-cancer, prevent colds and increase body immunity, which has important development value in medicine. Morchella has a unique flavor, delicious taste and rich nutrition. According to the determination, every 100 grams of Morchella contains 28.1 grams of crude protein, 4.4 grams of crude fat, as many as 20 kinds of amino acids, and is also rich in vitamins and minerals.
2019-01-11