The DIAETEL preparation is an emulsion concentrate containing active ingredients chlorpyrifos and cypermethrin. The preparation is intended for use in the agricultural sector, particularly for protecting winter wheat. Chlorpyrifos and cypermethrin are insecticides effective against various insect pests, although specific pest types are not mentioned in the description. The preparation is manufactured by Shandong Weifang Rainbow Chemical Co., Ltd. from China. This insecticide may be used for treating winter wheat crops, but exact application recommendations, such as dosage, last application timing, and maximum number of applications, are not specified in the text.