third generation Learn more about third generation
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Prevention and control of the third generation of fish disease
The pathogens and epidemic fish third-generation disease are medium-sized third-generation worm, bacterial third-generation worm and beautiful third-generation worm. The disease is mainly prevalent in spring, late autumn and early winter, and the excessive density of pond culture is the main cause of fish disease. Symptoms of the diseased fish skin has a layer of gray-white mucous membrane, thin. At the beginning of the disease, he was extremely uneasy, sometimes he swam wildly, and sometimes he swam sharply on the side. Rub in the grass or at the edge of the cylinder in an attempt to get rid of pathogens. Then he lost his appetite, swam slowly, and finally died. Prevention and control methods 1. When
2019-01-16 -
The Origin of Boer Goat Generation
The Origin of Boer Goat Generation
2018-09-07 -
Yuan Longping's team is studying the third generation breeding methods to develop hybrid rice.
Yuan Longping's team is studying the third generation breeding methods to develop hybrid rice.
2019-02-18 -
"Three generations of agriculture" transformed into "network generation"
"Three generations of agriculture" transformed into "network generation"
2019-02-19 -
Fish skin trematodes (the third generation of worm gyrodaclylus sp.)
Signs of infection when serious infection, fish will rub on hard objects, the skin will appear opaque and may become inflamed. A less severe infection may not show any symptoms that are easy to detect. Most species of freshwater and marine fish are infected by third-generation insects and related species. Infection details skin trematodes are trematodes up to 0.8 mm in length. They attach themselves to the fish's skin (occasionally to the gills) through a sucker with two hooks in the center, and feed on skin cells. At low
2019-01-16 -
Occurrence and control of jujube slime worm
Date slime worm belongs to lepidoptera, small leaf tortilla family. Common name sticky leaf insect, stick leaf insect, leaf curl insect etc. It is one of the main pests of jujube trees in China. 1. Characteristics of harm Date slime worm damages buds, leaves, buds, flowers and fruits by larval silking. Especially the third generation larvae are in the fruit coloring stage, often stick jujube leaves and jujube fruits with thin silk, nibble jujube skin and jujube flesh at the fruit stalk, resulting in a large number of fruit drops and rotten fruits. 2. Living habits in Shandong and River
2019-01-15 -
Control of the third Generation Helicoverpa armigera in growing Cotton
First, artificial collection of eggs to kill insects. Since most of the third generation cotton bollworms are in the flowers and bolls of insect-resistant cotton, for insect-resistant cotton fields, abortive flowers should be removed in time and pests should be killed artificially. Other cotton fields can be combined with pruning and forking to collect eggs and kill insects and take the remaining branches and leaves out of the field.
2020-11-08 Species cotton third generation cotton bollworm control one artificial -
To grow tangerine, it is necessary to prevent the yak scale from harming the young fruit.
At present, citrus sagittal scale is one of the main pests in citrus orchards in eastern and northern Guangdong. More than 50% of citrus orchards in these areas occur in varying degrees, affecting production. In this paper, the occurrence of citrus sagittal scale was systematically observed at a fixed point and on a regular basis.
2020-11-08 Grow tangerine need prevent sagittal tip scale harm young fruit citrus -
The third SAEARC Forum: a new "food" generation promoting friendly ecology and friendly animals
The third SAEARC Forum: a new "food" generation promoting friendly ecology and friendly animals
2018-10-24 -
How to control rice drill beetle without pollution?
How to control rice drill beetle without pollution? Please introduce the control method of heart borer is the common name of rice stem borer and Chilo suppressalis. Chilo suppressalis is distributed all over the country. Stem borer harms not only rice, but also Zizania caduciflora, corn, sugar cane, Reed and other Gramineae weeds. Some larvae can invade silkworms after overwintering.
2018-07-19 -
Breeding technique of Boer Goat
Boer goat is one of the most tolerant and adaptable livestock breeds. It can adapt to all kinds of climate zones in South Africa, and the inland climate, tropical and subtropical bushes, semi-deserts and deserts all grow well. Management at the initial stage of introduction 1. Preparation before introduction:
2020-11-08 Bohr goat mating technology is the most resistant to roughness and -
Control techniques of Helicoverpa armigera
Control techniques of Helicoverpa armigera
2018-07-01 -
How to control armyworm in Northeast China?
How to control armyworm in Northeast China? Please introduce that the source of armyworm in Northeast China mainly comes from the Yangtze-Huaihe River Basin. After the emergence of the first generation of adults in this area, it usually migrates into Northeast China from late May to mid-June to lay eggs. The second generation of larvae appeared in the field in the first and middle of June.
2018-07-14 -
The latest course of Control techniques and methods of Helicoverpa armigera
Cotton bollworm (Helicoverpa armigera) is a major pest in cotton bud and boll stage. it is a species of Helicoverpa armigera belonging to the family Lepidoptera, which is widely distributed in China and all over the world. Cotton areas in China and vegetable growing areas have suffered more seriously in the Yellow River and Yangtze River basins.
2020-11-10 The latest cotton bollworm control technology methods tutorials -
Culture of old seedlings of Cymbidium
Wuyishan mountain mountain cold orchid, cold orchid in the "cloud", floating category of cold orchid. Later, by Jiangxi Lanyou: orchid friend Yue Zhongxian, director of the Orchid Branch of China Flower Association, Deputy Secretary-General of Jiangxi Flower Association, Vice President and Secretary-General of Jiangxi Flower Association: named Jinggang in Jiangxi Hanlan by teacher Zheng Fengsheng.
2018-02-25 -
What pesticides are used in grapefruit?
Every National Day, a large number of grapefruit are on the market in our country, which are very popular with people. At present, many parts of our country are planting, but during the planting period, there will be all kinds of diseases and insect pests. If you want to spray chemical control, what pesticides will be used to control the grapefruit? 1. Harmful symptoms of glue disease
2020-11-08 Grapefruit with what pesticides every time National Day our country a large number -
Control of rice diseases and insect pests: how to control rice whitefly?
How to control rice whitefly? What are the hazards of rice whitefly? How does rice whitefly happen? Please introduce the harm of rice whitefly: Rice whitefly, also known as rice whitefly, is a new pest on rice. In addition, damage to sugarcane, corn and other food crops, as well as horse tang, paspalum grass, gold and other crops.
2018-07-18 -
Jujube armyworm
Also known as jujube leaf curler, with larvae bite jujube leaves, jujube flowers and fruits, and can eat sticking leaves and fruits, resulting in fruit drop, which has a great impact on yield. The insect overwintered as pupae in the trunk bark cracks of jujube trees, and the overwintering pupae began to Eclosion from mid-March to late April. The occurrence period of each generation larvae: the first generation larvae, from mid-April to late June, bite the tender buds and leaves; the second generation larvae, from the middle of June to the first ten days of August, harm the flowers, leaves and young fruits of jujube; the third generation larvae, from late July to mid-October, are especially harmful to leaves and then fruit decay. Adults lie dormant during the day
2019-01-16 -
Promoting the citizenization of the new generation of migrant workers with system construction
The new generation of migrant workers refers to the post-80s and post-90s rural migrant workers, who generally regard integration into cities and towns as their final destination, accounting for about 60% of the total number of migrant workers. The new generation of migrant workers has stepped onto the important stage of urbanization and become a new industrial worker.
2016-03-20 Use system construction promotion the new generation migrant workers citizens culture -
The technique of preventing and controlling persimmon velvet scale is spraying control of overwintering nymphs at the dormant stage and the eggs of each generation at the end of hatching.
The technology of preventing and controlling persimmon velvet scale is to control persimmon velvet scale [Asiacornoccus kaki (Kuwana)], also known as persimmon felt scale, persimmon felt scale, persimmon pink scale, persimmon lice, belonging to homoptera.
2018-06-03