-
What are the control methods for apple tree root rot?
Apple trees often suffer from root rot. Because the root system is buried in the soil, when the disease is initially contracted or mild, it is either not discovered or, once discovered, not accurately diagnosed, so the right treatment is not applied. In mild cases this leads to weak tree vigor and reduced yield and quality; in severe cases it causes the death of the plant, or even the loss of the entire orchard.
-
What are the control methods for apple silver leaf disease?
Apple silver leaf disease is distributed in all apple-producing areas of China, occurring mainly in the apple-producing areas along the old course of the Yellow River in Jiangsu, Anhui and Henan provinces, and rarely seen in other apple-producing areas. It is a devastating disease that, under suitable conditions, can cause the entire apple tree to die. [Identification
-
What are the scientific methods for picking apples?
First, check the weather conditions. During the harvest period there is a lot of moisture; when there is dew, fog or raindrops, the fruit rots easily and does not keep well, so choose a sunny day to harvest. If forced to harvest in rain or fog, the picked fruit must be spread out in a ventilated place to dry. Second, harvest the fruit in order. When picking
-
What are the methods for improving the smoothness of apple fruit skin?
1. Fruit bagging. Fruit bagging is one of the best and most effective technical measures for improving the smoothness of apple fruit skin. Fruit bagging can make the skin smooth and delicate, with bright color, fewer russet spots, and small and few fruit dots, thereby improving the appearance quality of the fruit. 2.
-
Control Methods and Technical Key Points for Apple Little Leaf Disease
Apple little leaf disease occurs mostly in orchards with poor soil and good permeability. Because of low zinc content, soluble zinc salts leach away and the disease becomes severe; frequent watering and rainfall cause large losses of soluble zinc; excessive nitrogen fertilizer use increases the tree's zinc requirement; in saline-alkali soil the pH
-
What are the control methods for apple fruit cracking disease?
In the late stage of apple growth, fruit cracking disease is common and causes relatively serious damage, severely affecting the commercial value of apples and deserving sufficient attention. Apple fruit cracking disease is caused by slow expansion of fruit flesh cells during the early drought period of apple growth, and rapid cell expansion when rain occurs in the middle and late stages of apple growth
-
Detailed Explanation of Licorice Propagation Methods and Cultivation Techniques
Licorice propagation has three methods: seed propagation, rhizome propagation and division propagation. 1. Site selection and land preparation: Sandy soil and loose red loam soil are suitable; apply 2500 kg of farmyard manure per 667 sq m, deep plow 40-50 cm in autumn, harrow fine and level, and make high ridges 40-50 cm wide with furrows 30-35 cm wide.
-
What are the disease prevention and control methods for licorice cultivation?
The main diseases of licorice are: rust, brown spot and powdery mildew. The prevention and control methods are as follows: 1. Rust: when infected, yellowish-brown scar-like lesions appear on the underside of the leaves; after the epidermis ruptures, brown powder is released, which is the uredinium of the pathogen; in August-September, dark brown telia
-
Detailed Guide to Licorice Planting Methods and Cultivation Experience
1. Site selection and land preparation. Usually choose sandy loam soil that is fertile, loose in texture, well-drained, and low in salinity and alkalinity. Usually when preparing the land, a tractor is used to plow the field, with deep plowing of about 20 cm. At the same time, apply 2000-2500 kg of barnyard manure per 667 sq m as base fertilizer, then level and harrow finely.
-
Control Methods for Leaf Spot Disease in Balloon Flower Cultivation
Balloon flower (Platycodon grandiflorus) is a perennial herbaceous medicinal plant, with its roots used as medicine. The control methods for leaf spot disease in balloon flower are as follows: 1. Symptom identification: This type of disease mainly damages the leaves of balloon flower. (1) When infected by the septoria leaf spot pathogen, white circular or nearly circular lesions appear on both sides of the leaves,
条件筛选