Planting method for controlling pimento epidemic diseases by interplanting field of pimento with garlic

The invention relates to a planting method for controlling pimento epidemic diseases by interplanting the field of pimento with garlic. The method includes the steps that ridging is conducted, the pimento is planted in a twin-row mode, the garlic is generally planted, three rows of garlic are planted every 6-10 rows of pimento in a pimento variety field in a mixed mode, and it is required that the pimento variety is about 10 cm higher than the garlic variety; the line spacing of the pimento is 40 cm, the planting distance of the pimento is 40 cm, the garlic is interplanted in field ditches, the line spacing of the garlic is 15 cm, and the planting distance of the garlic is 8 cm; the line spacing of the pimento and the garlic is 15 cm; pesticide liquid with the concentration being 250 mg/L is prepared through 50% dimethomorph wettable powder and warm water at the temperature of 55 DEG C before seedling cultivation, selected pimento seeds are steeped in the pesticide liquid, steeping and stirring are performed at the same time, and the seeds are fished out and dried after 20 minutes for seedling cultivation. According to the technology, by interplanting the field of pimento with garlic, the garlic can secrete allicin in the growing process, and the allicin accumulated in soil can deform pathogenic bacterium mycelia of the pimento epidemic diseases, deform spore germ tubes and reduce the spore germination quantity.