How to scientifically select pesticide additives

The substances that are mixed with the original pesticide or mixed with the original drug during the processing process can improve the physical and chemical properties of the formulation, improve the efficacy, and facilitate the use of the substance. They are collectively referred to as pesticide adjuvants, or simply pesticide adjuvants.

In general, the pesticide adjuvant itself is not biologically active, but whether the adjuvant is properly selected or not has a great influence on the efficacy of the pesticide formulation. For example, a mixed cream containing 10% propanil and 30% diesel has a similar herbicidal effect as 20% dichlorm containing no diesel, while the amount of propanil used is different by a factor of 1. When using Bordeaux, if added, 0.2%~0.3% bone glue can resist rain erosion and improve disease prevention effect. The rational use of pesticide additives can often increase the safety of the pesticides to plants and reduce the toxicity to humans and animals.

Filler: The filler can be used to dilute the original drug of the pesticide, reduce the amount of the original drug, make the original drug convenient for mechanical crushing, and increase the dispersibility of the original drug. It is a filler material for manufacturing powders or wettable powders, such as clay, clay, kaolin, diatoms Soil, pyrophyllite, talcum powder and so on.

Wet Spreading Agent: Wet spreading agent refers to an auxiliary agent that can reduce the surface tension of water and make water easy to wet solid surfaces. When the liquid is sprayed on the surface of the drug, it is easy to spread on the surface of the drug to improve the control effect. Such as dry tea, waste pulp, washing powder, open powder and so on.

Emulsifier: A two-phase liquid (such as oil and water) that makes it insoluble, forming an opaque or semi-transparent emulsion, called an emulsifier. Such as Turkish red oil, sodium diglyceride, castor oil polyoxyethyl ether, alkyl phenyl polyethyl ether and so on.

Dispersants: Divided into two types. A pesticide dispersant is a substance with high viscosity characteristics. Through mechanical action, the molten pesticide can be dispersed into colloidal granules, such as waste sticky honey concentrates and pulp waste concentrates; the other is The dispersant of the pesticide formulation can prevent powder flocculation so that the powdered pesticide can be well dispersed during spraying.

Adhesives: Adhesives are additives that increase the adhesion of pesticides to solid surfaces. After the adhesiveness of the agent is improved, it can withstand the erosion of rainwater and increase the residual effectiveness of the pesticide. Add the appropriate amount of mineral oil with high viscosity in the powder, and add the appropriate amount of starch paste, gelatin, etc. to the liquid pesticide.

Stabilizers: Stabilizers, also known as anticoagulants, prevent the deterioration of the physical properties of the pesticide formulation (WP) during storage (the reduction of the suspension rate).

Anti-detergent agent: refers to an additive that can prevent the decomposition of the active ingredients of a pesticide formulation during storage. Some anti-depressant agents are included in the stabilizer class, such as adding some emulsions can improve the stability of the emulsion.

Synergist: It has no insecticidal and bactericidal effect, but it can increase the insecticide and bactericidal effect of the original drug.

Solvents: Solvents are additives that can dissolve pesticides and are used in the processing of ECs. Such as benzene, xylene and so on.

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