Different pesticide formulations and their use points
1, water agent:
The water agent is prepared by directly using water by utilizing the characteristics that some of the original drugs can be dissolved in water. The utility model has the advantages of convenient processing and low cost; but it is not easy to spread on the surface of the plant body, has poor adhesion, contains a large amount of water, and is easily decomposed and decomposed by long-term storage.
2, tablets:
A tablet preparation prepared by compressing the original drug, filler and adjuvant of the pesticide. Among them, water-soluble tablets can be used as seeds for soaking; tablets for moisture absorption and decomposition can be used as fumigants.
3. Suspending agent:
A viscous suspension consisting of the original drug, microparticles, water, dispersant, antifreeze, etc. of the pesticide. Suspending agents combine the advantages of both emulsifiable concentrates and wettable powders, primarily for conventional sprays.
4, emulsifiable oil:
The original drug and emulsifier of the pesticide are dissolved in an organic solvent (for example, benzene, xylene, etc.) in a certain ratio, and become a solution in which the original drug and the emulsifier are dissolved. The emulsifiable concentrate is insoluble in water, but after being stirred with water, it is stirred into numerous tiny oil droplets. By the action of the emulsifier, these tiny oil droplets are uniformly suspended in the water to become a milky white emulsion. It can be spread on the surface of the plant when spraying, with strong adhesion, strong penetrating ability, not easy to be washed by rain, good control effect, long residual effect, convenient use, wide application, spray, pouring, smearing, seed dressing, soaking , treatment of soil, etc.
5, granules:
A granular preparation of a crude drug, an adjuvant, and a carrier (for example, soil particles, cinder, etc.). The advantage of granules is that the sedimentation is good during application. The drift is small, the environment is light, the residual effect period is long, the use is convenient, labor saving and time saving.
6, wettable powder:
The powder of the original drug and filler (such as: kaolin, clay, talcum powder) and humectant mixed in a certain proportion and mechanically pulverized. It is easily wetted by water and forms a homogeneous suspension after being stirred in water. In addition to being used as a spray, it can also be used as seed dressing, toxic soil, soil treatment, and pouring.
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