The round-tined implement is similar to the Einbock harrow and has floating beds of tines. The brush hoe has PTO-driven plastic bristles that rotate on a horizontal plane, aggressively ripping weeds from the soil. Cultivation depth is modified with guide wheels and the three-point hitch attachment. Several row spacings and brush configurations are available. The implement is effective on slightly moist soils.
Soil passing under the shields smothers weeds in the crop row.
The dust layer that results from brushing delays new weed germinations. For example, in transplanted broccoli, a single pass of the brush hoe provided season-long weed control comparable to standard herbicides without reducing yields. The brush hoe requires two operators. Wind erosion is possible with aggressive brushing on dry soils. The initial implement purchase is costly.