pathogens Learn more about pathogens
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Orchids pest list
Orchids pest list
2018-05-01 -
Clove brown spot
Symptoms and pathological changes: mainly formed brown spots on the leaves, disease spots round, nearly round or irregular, dark brown edge, light brown center, severe brown spots, early defoliation, leaving only a small number of leaves in the whole plant. The pathogen is fungus, Cercospora lilac, the seed is spherical, dark brown, the conidium is fascicled and erect.
2018-12-16 -
The pathogen of sclerotinia disease
The pathogen of sclerotinia disease
2018-05-05 -
What are the functions of fungicides and what is their principle?
What are the functions of fungicides and how to use them? Please introduce that there are two ways of action of fungicides: one is protective fungicides, the other is internal fungicides. Protective fungicides come into direct contact with pathogens in vitro or on the body surface of plants, killing or inhibiting pathogens, making them unable to enter plants, thereby protecting plants.
2018-07-14 -
What harm does bacterial fruit spot of cantaloupe and watermelon have? Control of bacterial Fruit spot in Watermelon
From 1992 to 1993, in the coastal area of Yunlin County and Shanhua area of Tainan County, it was sporadically found that the fruit surface of large watermelon showed irregular water immersion, slightly cracked disease spot, mainly occurred in the rainy season, the disease spot spread on the pericarp, and did not harm the pulp at the initial stage. May 1997 is suitable for Taiwan.
2019-05-19 Foreign cantaloupe and watermelon bacteria fruit spots disease yes what -
A STUDY ON HYPOPHILA DISEASE OF EUPHILA EELLUS
In recent years, large-scale intensive culture of European eel has been increasing in China. However, with the expansion of culture scale and the continuous increase of culture density, various problems affecting the survival rate of European eel are increasing day by day, and the outbreak infectious disease of European eel caused by hygrophilic bacteria is one of the outstanding problems. A series of preliminary studies on the physiological and biochemical characteristics, pathogenic factors and pathogenic conditions of hygromonas were carried out in order to provide a powerful theoretical basis for the prevention and control of European eel outbreak infectious diseases and to promote European eel culture to be stronger.
2019-01-15 -
How to raise orchids in winter? pay attention to these five points to help you survive the winter easily.
Winter is a difficult time for most flowers and plants, and it is also the same for orchids, which is not very resistant to cold weather, so we must pay special attention to it when raising it in winter. About how to raise orchids in winter? Next, the editor will take you to learn about it.
2018-12-18 -
Application of Biopesticide: what is yeast? The function and efficacy of Biopesticide yeast
Yeast has been used in food fermentation industry for thousands of years. By selecting and domesticating bacteria, it can be used not only to produce beer and all kinds of wine, but also to ferment bread and steamed bread. In addition, the potential of research and development of plant disease control is booming in recent years.
2019-01-10 Biology pesticides applications yeast what is it its function and -
Analysis on the Role of Pathogenic Microorganisms in Respiratory Tract of Pig Farm (Ⅰ)
Analysis on the Role of Pathogenic Microorganisms in Respiratory Tract of Pig Farm (Ⅰ)
2020-09-10 -
Analysis on Pathogenic Factors of Common Diseases of Rana chensinensis
Analysis on Pathogenic Factors of Common Diseases of Rana chensinensis
2018-07-09 -
Treasure Book of raising Orchid: talking about the Prevention and Control of soft Rot from the characteristics of pathogenic bacteria
Treasure Book of raising Orchid: talking about the Prevention and Control of soft Rot from the characteristics of pathogenic bacteria
2018-05-06 -
There are small black spots on the back of orchid leaves, how to deal with them?
There are small black spots on the back of orchid leaves, how to deal with them?
2018-05-06 -
What are the effects of fungicides?
What are the effects of fungicides? Please introduce that there are two ways of action of fungicides: one is protective fungicides, the other is internal fungicides. Protective fungicides come into direct contact with pathogens in vitro or on the body surface of plants, killing or inhibiting pathogens, making them unable to enter plants, thereby protecting plants from disease.
2018-07-14 -
There are small black spots on the back of orchid leaves, how to deal with them?
In orchid cultivation, if we want to raise strong and disease-free orchid seedlings, we must first face infectious diseases, which can be divided into four categories: fungal, bacterial, viral and nematode. ...
2018-02-25 -
Integrated control techniques of sweet-scented osmanthus brown spot
Integrated control techniques of sweet-scented osmanthus brown spot
2018-07-23 -
Control of mushroom pathogen
Mushrooms begin to emerge one after another in late September, which is also the time when mushroom pathogens begin to multiply. Mushroom walnut fleshy fungus is a serious pathogen in mushroom production. This bacteria is also known as "pseudotruffle", and its pathogen is Microsporum. The ascomycetes are in the shape of walnut meat or cauliflower when piled, light yellow to creamy and light brown when ripe. The surface is covered with dandruff, the fungus is dense and soft, and has a fishy smell after being crushed, up to more than 10 centimeters. Once the mushroom bed is infected by walnut fleshy bacteria, the bed should stop spraying immediately.
2019-01-16 -
The epidemic disease of national orchid and its control
The epidemic disease of national orchid and its control
2018-05-05 -
Field Operation Management and Disease Control of Flowers
Field Operation Management and Disease Control of Flowers
2019-07-09 -
Control of powdery mildew of Lycium barbarum
[symptom characteristics] mainly harms the leaves. The leaves are covered with white mildew spots (initial) and powder spots (later). This white mildew spot and powder spot are not only the symptoms of the disease, but also the symptoms of the disease (conidiophores and conidia). In severe cases, the plant of Chinese wolfberry appears white, which is quite eye-catching. The photosynthesis of diseased plants was blocked, which eventually caused the leaves to turn yellow and easy to fall off. [pathogen and pathogenic characteristics] the pathogen is Oidiumsp. In cold areas, the pathogen is accompanied by sexual fruiting body.
2019-01-15 -
How to do calf diarrhea? What are the causes and prevention?
Calves are a hybrid breed. There are mainly Simmental cattle, Charolais cattle, Limousin cattle and other improved beef cattle as male parents, Luxi yellow cattle as female parents for cross improvement. What about calf diarrhea? What are the causes and prevention? 1. Diarrhea in calves
2020-11-11 Calves diarrhea how to do hair raw cause and prevention there are