The group GS with hoeing blade avoids plants by means of the tool 90° rotation and this way allows, in good conditions, a working speed up to 10 Km per hour. GS can be right or left in order to be assembled on other equipments : shredders, disc harrows, rotary tillers, all-purpose shredders, etc. It performs ecological weeding, even when plantings are very close and it is particularly effective during summer season.