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How to prevent and control jujube fruit shrinkage disease? Understanding the occurrence pattern is key
Jujube fruit shrinkage disease, also known as jujube iron skin disease, jujube black rot, jujube dry waist fruit shrinkage disease, jujube wilt fruit disease, wu chao, wu luo tou, wu chao, tie jiao, etc., was first officially reported in China in the late 1970s. It is found throughout all major jujube-growing regions nationwide, and its damage is becoming increasingly severe, having already become a devastating disease in jujube production. In recent years, the disease has become increasingly serious in jujube-producing areas of Shanxi Province, becoming an important factor affecting jujube yield and commercial quality. However, current reports on the pathogen and control patterns of this disease are inconsistent, and no effective control method has been found
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What are the common tea plant diseases in China? This one article gives you a full understanding
More than 100 tea plant diseases have been recorded, and more than 30 are common. I. Leaf diseases: nearly 40 have been recorded. Bud and leaf diseases mainly include: tea blister blight, which occurs rather severely in high-mountain tea gardens in the southwestern tea region; tea white star disease and tea round red star disease, which cause severe damage under conditions of low temperature and high humidity in high-mountain tea gardens in the provinces of East China and Southwest China; tea bud blight is one of the common important diseases in Zhejiang, Hunan and other provinces. Diseases of mature leaves and old leaves include tea cloud-pattern leaf blight, tea ring spot disease, tea anthracnose, tea brown
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A detailed guide to Dracaena reflexa cultivation techniques: understanding planting and care methods in one article
Dracaena reflexa, golden Dracaena reflexa, and yellow-edged Dracaena reflexa all belong to the D. retlera lineage. The plant can reach 9 m in height, and after growing tall the stems tend to bend and lean. The leaves are sword-shaped and lanceolate, sessile, leathery and glossy. Dracaena reflexa has entirely green leaves. Golden Dracaena reflexa has yellow longitudinal stripes in the leaves. Yellow-edged Dracaena reflexa has golden-yellow leaf margins. Such plants have strong shade tolerance, are suitable for pot cultivation, and are premium indoor plants. Cut stems and leaves can also root when grown in water, making them premium material for flower arranging. Propagation: seed sowing or cuttings can be used; for mass propagation, seed sowing can be used, from spring to
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What are the digestive physiological characteristics of donkeys? Read this article to understand
Digestive physiological characteristics of donkeys: Donkeys have hard, well-developed teeth and flexible upper and lower lips, suitable for chewing coarse and hard feed. Donkeys have well-developed salivary glands; every 1 kg of forage can be softened and digested by 4 times its amount in saliva. The donkey's stomach is small, only equivalent to one-fifteenth that of a cow of the same size. The cardiac sphincter of the donkey's stomach is well-developed, while the vomiting nerve is underdeveloped, so it is not easy to feed feed that ferments and produces gas, to avoid gastric dilation. Chyme stays in the stomach for a short time; when the chyme in the donkey's stomach reaches two-thirds, as feeding continues, the stomach contents are continuously
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What are the key management points for garlic under plastic mulch during the green-up stage?
1. Clean the plastic mulch surface to increase its light transmittance. The key to garlic green-up is temperature, and management during this period focuses mainly on raising soil temperature. For garlic covered with plastic mulch, coverings on the film such as leaves, completely dead garlic leaves and dust should be removed as early as possible to clean the film surface, so as to increase light transmittance and raise soil temperature. Damaged plastic mulch should be repaired promptly to increase heat preservation and warming effects and promote early green-up of garlic. 2. Open and clear ditches. Garlic roots are not tolerant of wet conditions; waterlogging in the field during spring rain can easily cause root rot, and drought can also affect normal garlic growth.
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Semi-underground three-dimensional cultivation of oyster mushrooms yields high output and good returns
Semi-underground three-dimensional bed-frame cultivation of oyster mushrooms is a new approach explored in recent years to achieve high yields and improve economic returns. According to trials, on an area of 20 sq m, with 2000 kg of substrate, the annual output of oyster mushrooms is about 2500 kg, with a biological efficiency of over 120%. The key technical points are as follows: 1. Building the greenhouse: first dig a pit 1.8 m to 2 m deep and 4 m to 5 m wide, with the length determined as needed, and place the three-dimensional bed frames inside. On top, use bamboo poles and plastic film to build an arched shed, pack the surrounding edges firmly with soil, and cover with straw mats. Leave ventilation openings of about 30 square cm on all four sides, east, west, north and south, and build a small door on the west side for workers to enter and exit.
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How to control the jujube bud weevil? Understanding its life habits is key
The jujube bud weevil belongs to the order Coleoptera, family Curculionidae. It occurs in Henan, Hebei, Shanxi, Liaoning and other famous jujube-producing areas, mainly harming jujube, apple, pear and other fruit trees. The jujube bud weevil emerges from the soil in early spring and first damages the young buds of jujube trees. It is the earliest pest to appear on jujube trees. When the population density is high, it can eat all the jujube leaves, causing a second flush of buds and resulting in reduced yield or total crop failure. The adult is dark gray or earth-yellow, with a black head, two curved elytra that are 2 times as long as wide, and a silvery-gray ventral surface. The eggs are milky white, turning brown later, oblong,
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What are the common specifications for garlic oil? Read this to understand
Garlic oil is obtained by steam distillation of the bulbs of garlic (Allium sativum L.), a plant in the Liliaceae family. It is a clear, pale yellow to orange-red liquid with a strong, pungent odor resembling mercaptan. 1.050-1.095, 1.550-1.580. Its main components are allyl propyl disulfide, diallyl disulfide, diallyl trisulfide, allicin, etc. It is mainly produced in Egypt, China, and other countries. It is mainly used to prepare pungent seasonings, and also used in disinfectants and other pharmaceuticals. Garlic bulb
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How to control the Japanese wax scale on goldenrain tree? First understand its occurrence pattern
The Japanese wax scale (Ceroplastes japonicus Gr.) belongs to the order Homoptera, family Coccidae. Also known as the Japanese wax scale and the jujube armored wax scale, commonly called the jujube louse. When it breaks out over large areas on goldenrain trees, in severe cases the entire tree's branches and leaves are covered with the insects, and female insects attached to the twigs look like snow from a distance. The nymphs suck sap on the leaves, and their excrement covers the whole tree, weakening the tree's vigor and seriously affecting the landscaping appearance. Through two years of investigation and study, the occurrence pattern of this pest was clarified, and a satisfactory control method was found. This pest
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What do snakehead fish eat? Understanding the diet of snakehead fish in one article
The snakehead fish is a fierce carnivorous fish. It does not chase its prey to feed, but instead uses a "wait-and-see" ambush method. It usually hides among aquatic plants, and once "prey" approaches, it suddenly attacks and captures it. Its main food is crucian carp,
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