Know More about Fungicides
During crop production, viruses, nematodes, fungi and bacteria can cause diseases. The best way to prevent and manage the disease is through integrated practice.
Management practices
Matching the plant with the site
Selecting disease-resistant varieties
Plant care that prevents stress: irrigation, mulch, fertilization
Use of fungicides
Fungicides
Fungicides are pesticides that prevent, kill, slow or inhibit the growth of fungi on plants.
Classification of fungicides:
A. Mobility
Contact
Contact fungicides (Protectants) are not absorbed by the plant and stick to plant surfaces. They provide a protective barrier that prevents the fungus from entering and damaging plant tissues.
Systemic
Systemic fungicides (Penetrants and Mobile fungicides) are absorbed into plants and can move from the site of application to other parts: from moving to old and new tissues, new growth, and the top to the bottom of the leaf surface.
B. Protection
Preventive
Preventive fungicides act by contact action on the surface of the plant to which they are applied. So if it is washed away by rain or irrigation or degraded by environmental factors such as sunlight, it must be applied again.
Curative
Curative fungicides work on the fungus after infection. They can stop the disease after the infection has started or after the first symptoms have been observed. It can be both prevented and treated.
C. Mode of action
Fungicides kill fungi by damaging their cell membranes, inactivating critical enzymes or proteins, or by interfering with key processes. Fungicides may work by damaging the cell membrane of the fungus, inhibiting an important process that the fungi, pinpointing single or multiple processes in the fungus.
D. Spectrum
Narrow-spectrum
Narrow-spectrum fungicides are effective against only a few usually closely related pathogens. These usually have single-site activity and are often systemic.
Broad-spectrum
Broad-spectrum fungicides can often control a wide range of unrelated pathogens. These usually are contacts with multi-site activity, but some have single-site activity.
How to use fungicide
1. Correct diagnosis
Before using fungicides, you can confirm the following issues:
A. Is it a disease?
B. If so what is causing it?
C. Is it Fungi? Which one is it?
D. When and how often to apply this fungicide?
The timing of the fungicide application can enhance the effectiveness of the product and prevent additional sprays.
2. Correct use
When ready to use the fungicide for the particular problem your plant is facing, read the label and follow instructions. This will not only protect your plant, but it will also protect your health and the environment. Remember always to apply fungicides using the appropriate equipment at the recommended application rate.
The best management strategy against plant diseases is by promoting plant health in the first place. Before planting, make sure that soil, water, and light conditions are ideal for your plant. Once the plants have been established, make sure to use the appropriate sanitation, fertilization, and pruning practices to enhance plant health.
If you want to seek professional plant protection advice, you can always contact King Quenson.
Since 2003, King Quenson has been thriving to introduce the latest technologies to agricultural industries and farmers to achieve mutual development and prosperity. With years of dedication and rich experience, King Quenson devotes more than 18 years to crop protection and offers solutions.
Email: info@kingquenson.com
Tel: 86-755-86612769
Then there are two fungicides: Cyprodinil and Dimethomorph 9%+Mancozeb 60%, which we recommend to you.
Cyprodinil
Cyprodinil is a fungicide. Cyprodinil belongs to the family of Amino pyrimidines and Derivatives. These are organic compounds containing an amino group attached to a pyrimidine ring. Amino pyrimidines play an important role in biological processes since the pyrimidine ring is present in several vitamins, nucleic acids, and coenzymes.
Benefits
Systemic action against diseases;
Good penetrative properties of the active substance;
Acropetal and translaminar redistribution;
Provides preventive and curative fungicidal effects;
Powerful active agent;
Does not affect resistance development in pathogens.
Action mode:
Cyprodinil provides curative and preventive action for fruit trees:
Translaminar and acropetal movement ensure that the active ingredient travels both up and down plants, for increased effects against invading and already present pathogens;
Strong effects against scabs and blights, especially when used early in the season;
Dimethomorph 9%+Mancozeb 60% WP
Dimethomorph +Mancozeb is a dimethomorphic fungicide from the morpholine group and mancozeb from the dithiocarbamate group. It has translaminar action with local and contact systemicity. It interrupts the formation of the cell wall of the fungus and is active in all stages of the evolutionary cycle of the fungus. Applied foliar has a good preventive, curative and antisporulant activity, with a long residual effect.
Benefits
It ensures an effective fight against Peronospora through the 3 different modes of action: preventive, curative and antisporulant.
Inhibits the development of fungal cells in almost all stages of development (multidirectional mechanism of action).
Protects new growths (translocates acropetally into stems and inside new growths).
The translaminar movement allows fast and lasting protection of the culture.
Low risk of developing resistance.
Action mode:
Dimethomorph is a systemic Oomycete fungicide, which has a unique mode of action with protectant, and anti-sporulant activity. Dimethomorph is systemically translocated upwards in the plant and is translaminar with local systemicity when applied to the foliage. Dimethomorph acts by disrupting fungal cell wall growth and is active at all stages in the fungal life cycle other than during the formation of zoospores and zoospore motility.
Mancozeb is a protectant fungicide that provides a protective cover over plant surfaces, thus inhibiting spore germination.
If you have a need, you can contact us at any time:
Email: info@kingquenson.com
Tel: 86-755-86612769
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