How to reduce the resistance of pests to biological pesticides

Pests will produce resistance under long-term chemical pesticide control conditions, and irrational use of biological pesticides will also produce drug resistance. After a long period of field application and laboratory tests, the authors observed that the bacterial biological pesticide Bt (Ba.......

To identify the age of pigeons to look at seven

Knowing how to identify the age of pigeons is of great importance to timely breeding and selection of improved varieties. The pigeons generally live for 10 to 15 years, but the best breeding age for breeders is 2 to 4 years old, and the meat pigeons have a useful production period of about.......

Common Mini-Pests and Control Measures in Winter Shelves

With the advent of winter, counter-season greenhouse vegetables have reached the prime time of production. However, due to the relatively high temperature and humidity in the shed, the damage caused by the micro pests in the shed is affected, which affects the degree of vegetable production in.......

Fresh chicken manure fish feeding technology

Non-fermented chicken manure is fresh and pollution-free. There is a large amount of uneaten feed and unabsorbed nutrients in the manure, which can be used directly by fish. In addition, there are many rural chicken farmers in the countryside and the source of chicken manure is very wide. It c.......

Seven kinds of inferior crabs can not be bought

Crabs (eye larvae) are purchased to cultivate crab species and juvenile crabs, and seven kinds of inferior crab species cannot be purchased.
1. Colored seedlings Crab seedlings are dark and light, and individuals have large and small bodies. This type of crab seedling, if it is a natural .......

Drought-resistant cultivation and management techniques for fruit trees

The drought resistance of fruit trees depends on their own genetic characteristics and is influenced by external environmental conditions. By understanding the water demand of fruit trees, we can carry out irrigation or take some corresponding cultivation techniques in the critical period of p.......

Expander maintenance

The host reduction gear box body should check and replace the oil once every six months; use 30# mechanical oil in winter and 40# mechanical oil in summer.
The motor belt should be checked once a month. If it is loose, please adjust it at any time. If it is damaged, please replace it in t.......

Orchard winter management technical points

Winter is an important stage to adjust the tree structure. The winter orchard management of the orchard is directly related to the strength of the tree in the second year of the fruit tree, the amount of the result, the quality of the product, and the hazard of overwintering pests and dise.......

Crop nutrient imbalance solution

Solutions to crop nutrient imbalances The lack of nutrients in crops can lead to a "nutrient-deficient" disease, and the "excess" of certain nutrients can often lead to a "lack" of another nutrient, or to crop production." Inappropriate phenomena, such as bei.......

The key technologies for rabbit skin removal

Slaughter according to the procedure

Repelling skins from rabbits should change the old method of slaughtered blood and slaughtered skin in the past. It should be a new procedure of first killing, peeling, and then bleeding. The purpose is to reduce the fur stains.

In order.......

Rabbit skin formaldehyde molding method

First, materials, medicines and supplies

1. Fresh or dried rabbit skin or meat rabbit hide

2. Drugs

Industrial formaldehyde (formalin), sulfuric acid, salt, meal detergent, Glauber's salt (sodium sulphate), sodium carbonate (white alkali), washing powder, percol.......

Listen to the sound of the tractor

By listening to the tractor's abnormal sound, determine the possible failure, timely maintenance and take preventive measures.
1. Crisp knocking: The gap between the piston pin and the pin seat and between the piston and the bushing becomes large due to wear. In addition to normal.......