Microemulsions are regarded as one of the most promising pesticide formulations. However, formulation of pesticide microemulsions is not simple. Obtaining efficient, scientific and inexpensive formulation designs is challenging. In this work, cyhalothrin was used as a pesticide sample, and a systematic study on microemulsion formula design was carried out based on its pseudo-ternary phase diagram and the orthogonal design method. An explanation of the use of our approach is included to assist the formulator, and the development of a 5.28% w/w cyhalothrin microemulsion is described.

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