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Agricultural drug type selection method
There are various types of agricultural dosage forms, including water-based formulations. Choosing the right formulation for a specific pesticide depends on several factors, such as the chemical properties of the active ingredient, the needs of the target organism, and the advantages and limitations of different dosage forms. A comprehensive evaluation of these aspects is essential to make an informed decision. In general, selecting an appropriate dosage form requires understanding the physical and chemical characteristics of the compound.
Key properties like melting point, stability under environmental conditions, volatility, lipophilicity, hydrolytic and photostability play a crucial role in determining the most suitable formulation. These properties influence how the pesticide behaves during application and its effectiveness once it reaches the target.
The primary goal of any dosage form is to ensure that the active ingredient is delivered effectively to the intended site of action, enhancing its overall performance. The formulation significantly affects the quality of pesticide sprays and their retention on plant surfaces. Through the use of adjuvants, the dynamic surface tension of the formulation can be modified, which in turn influences spray atomization, droplet size, and deposition patterns.
Different adjuvants and their concentrations can have a major impact on the behavior of the pesticide. The way the spray is deposited on leaves—such as droplet size, position, and distribution—directly affects how well the pesticide adheres and penetrates the plant surface. This, in turn, influences the retention of the active ingredient, its movement within the plant, and ultimately, its efficacy against the target pest.
Moreover, the biological activity of the pesticide is closely related to how it interacts with the plant and the environment. Understanding these interactions is key to developing more effective and environmentally friendly pesticide formulations.
Source: China's Pesticide Network – Please cite the source!