Fungicides are a category of pesticides used to control plant diseases caused by fungi. They are generally divided into two main types: protective fungicides and curative (therapeutic) fungicides. According to pesticide experts from the Shandong Academy of Agricultural Sciences, proper application is key to achieving effective disease control.
Fungicides work by either preventing fungal infections or treating them after they occur. It's essential to choose the right type based on the specific characteristics, mode of action, and effectiveness of each product. Understanding these differences helps farmers and growers make informed decisions for better crop protection.
Protective fungicides are applied before a pathogen infects the plant. These products create a barrier that prevents fungal spores from germinating or penetrating the plant tissue. Common examples include copper-based formulations like Bordeaux mixture, sulfur-based products such as lime sulfur, and compounds like mancozeb, zineb, chlorothalonil, and basic copper sulfate. They are often used for seed treatment or soil application to provide early protection.
On the other hand, therapeutic fungicides are designed to be absorbed systemically by the plant. These are used when the infection has already occurred. They work by inhibiting the growth and reproduction of pathogens inside the plant, helping to reduce or eliminate the disease. The earlier these fungicides are applied during an outbreak, the more effective they tend to be.
Proper timing, correct dosage, and appropriate application methods are crucial for maximizing the benefits of both types of fungicides. Misuse can lead to reduced efficacy, increased resistance, and environmental concerns. Therefore, following expert recommendations and label instructions is always advised.
AKD Wax
1. Introduction
This ADK wax is a very ideal neutral Paper Sizing Agent, it can be used as pulp sizing and surface sizing to make the paper have excellent water resistance. When using this ADK wax, it should be heated to melt, and then mixed with the starch emulsifying agent and protective agent, until the agent emulsify into stable latex
2. Specifications
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Appearance
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pale yellow waxy solid & flake & block
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Purity
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≥90%
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Melting point
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48-50°C
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Acid value (mgKOH/g)
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2.0 mgKOH/g
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FFA free fatty acid
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≤2.0%
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Iodine value
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45- 48.5 giz/100g
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Carbon content
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C16: 40% C18: 60%
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3. Alkyl Ketene Dimer Techinical Data
4. Application of Alkyl Ketene Dimer
As a kind of reactive neutral paper sizing agent, mainly used for copper base paper, copy paper, file paper, paper dictionary and quality writing paper paper in sizing. The pH value can reach about 8, which is called basic sizing, which is widely used at home and abroad. This product can also be used as surface sizing agent.
5. packaging
25KG/ bsg or 500kg/ bag
AKD Wax,Alkyl Ketene Dimer,90% Purity AKD Wax,Alkyl Ketene Dimers AKD Wax
Shandong Tiancheng Chemical Co., Ltd. , https://www.tianchengchemical.com