The utility model provides a
fruit tree grafting union protection device, which relates to the technical field of
grafting protection and comprises rubber sleeves, two rubber sleeves are clamped at
grafting positions of
fruit tree branches, grafting points are positioned in the middles of the rubber sleeves, and binding pieces are arranged in the middles of the rubber sleeves. The binding piece is tied on the surface of the rubber sleeve so that the rubber sleeve can be fixed to the surface of the
branch to support the
branch, the positions, close to the two end openings, of the surface of the rubber sleeve are bound and fixed to the surface of the
branch through restraint straps, and the two end openings of the rubber sleeve and the branch are sealed through sealing
cement gum. Wherein an auxiliary component for conveying
disinfectant to a grafting wound through capillarity is arranged on the rubber sleeve. The
fiber core for
wetting the
plant antibiotic
disinfectant penetrates through the rubber sleeve and is inserted into the gap between the rubber sleeve and the branch, the capillary gap in the
fiber core can continuously convey the external
plant antibiotic
disinfectant into the interior to be evaporated, the internal space is disinfected, and then grafting failure caused by
fruit tree branch grafting
wound infection is reduced.