The invention discloses an alternate
intercropping cultivation method for effectively preventing and controlling
tetranychus cinnabarinus of cassava. The method specifically comprises the following steps: 1) planting in the first year, interplanting cassava and Chinese mesona
herb (corn) in proportion, performing field management, and harvesting; wherein the Chinese mesona
herb and the cassava are firstly planted in spring, the corn is planted in autumn after the Chinese mesona
herb is harvested, and finally the corn and the cassava are harvested; (2) during planting in the second year, cassava and Chinese mesona herb (corn) are planted by adopting an alternate
intercropping method; one alternate
intercropping period is two years, and cassava,
mesona chinensis and corn are planted in turn in the same planting zone. According to the method, interannual
crop rotation is achieved through alternate intercropping cultivation, soil
continuous cropping obstacles can be relieved,
soil health is kept, strong seedlings are cultivated, the growth vigor of cassava is enhanced, and the
disease and pest resistance of cassava is improved; meanwhile,
natural enemies can be protected, the life cycle of diseases and
insect pests is disturbed, the occurrence rate of the diseases and
insect pests is reduced, accordingly,
tetranychus cinnabarinus is reduced, and agricultural control over the
tetranychus cinnabarinus in the cassava field is