At present, pesticides are mainly composed of emulsifiable concentrates and wettable powders, and there are three dosage forms of suspending agents. Some of the dosage forms have the same name but their uses are the same. Some dosage forms have the same use but different methods of use. Pesticide users should decide which dosage form to choose based on the crop and the control object, the application Machine and the conditions of use. The main differences between the three dosage forms are as follows:
First, the efficacy of the pesticide of the pesticide is significantly higher than that of the suspending agent and the wettable powder, and the pesticide of the same active ingredient is preferably selected from the emulsifiable concentrate. For the fungicide for foliar spray, it is generally preferred to use a suspending agent or a wettable powder. The herbicide for foliar spraying has a waxy layer on the surface of the weed leaves, and the emulsion containing the organic solvent, the concentrated emulsion, the suspending agent and the like can be selected. Herbicides, granules and other dosage forms that can be used in the preparation of toxic soils are used more frequently in paddy fields or soils.
Second, the efficacy of the suspending agent is second to that of the emulsifiable concentrate, but significantly higher than that of the wettable powder. Since the particles of the suspending agent are much finer than the wettable powder, the various adjuvants contained in the suspending agent facilitate the adhesion of the agent particles to the surface of the living body, thereby improving the efficacy.
Third, years of practical experience shows that the safety of wettable powders (referring to the extent of crop damage), followed by suspending agents, and finally emulsifiable concentrates. Therefore, under special climatic conditions or conditions, the most suitable wettable powder is used. For example, when the temperature is higher than 35 °C, the sprayed crop is susceptible to phytotoxicity.
Fourth, from the safety considerations of the application personnel, spray in hot weather, it is best to use the same type of water-based media, such as wettable powder, suspension, soluble powder, water-dispersible granules.
First, the efficacy of the pesticide of the pesticide is significantly higher than that of the suspending agent and the wettable powder, and the pesticide of the same active ingredient is preferably selected from the emulsifiable concentrate. For the fungicide for foliar spray, it is generally preferred to use a suspending agent or a wettable powder. The herbicide for foliar spraying has a waxy layer on the surface of the weed leaves, and the emulsion containing the organic solvent, the concentrated emulsion, the suspending agent and the like can be selected. Herbicides, granules and other dosage forms that can be used in the preparation of toxic soils are used more frequently in paddy fields or soils.
Second, the efficacy of the suspending agent is second to that of the emulsifiable concentrate, but significantly higher than that of the wettable powder. Since the particles of the suspending agent are much finer than the wettable powder, the various adjuvants contained in the suspending agent facilitate the adhesion of the agent particles to the surface of the living body, thereby improving the efficacy.
Third, years of practical experience shows that the safety of wettable powders (referring to the extent of crop damage), followed by suspending agents, and finally emulsifiable concentrates. Therefore, under special climatic conditions or conditions, the most suitable wettable powder is used. For example, when the temperature is higher than 35 °C, the sprayed crop is susceptible to phytotoxicity.
Fourth, from the safety considerations of the application personnel, spray in hot weather, it is best to use the same type of water-based media, such as wettable powder, suspension, soluble powder, water-dispersible granules.
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