Seed melon powdery mildew detection device

The utility model relates to the technical field of experimental equipment, in particular to a seed melon powdery mildew detection device, which comprises a shell, a cover body and a zoom lens assembly, the shell is provided with a mounting groove, a slide placing rack is arranged in the mounting groove through an adjustable assembly, the adjustable assembly comprises a longitudinal adjusting assembly and a plane adjusting assembly, and the longitudinal adjusting assembly is provided with a plurality of slide grooves. A light source is arranged below the slide placing rack, the cover body is rotatably arranged at a notch of the mounting groove through a rotating shaft, a light through hole is formed in the cover body, and the zoom lens assembly is arranged at the light through hole; the device is used for preliminary microscopic observation of powdery mildew and determination of powdery mildew pathogen types, a complex and heavy body structure of a traditional microscopic observation device is omitted, and th