| 摘要 |
An applicator for applying a liquid herbicide to lawns comprises a hollow drum having an absorbent, herbicide-permeable covering which is fed with herbicide from a supply thereof contained within the drum. Rigid with the drum at its ends are wheels somewhat larger than the drum to maintain the absorbent covering of the drum spaced above the ground. The drum has a hollow, rigid core provided over a limited segment of its periphery with feed openings through which herbicide within the core can reach the absorbent covering. The interior of the drum is sealed against communication with the atmosphere except through the feed openings, so that when the device is not in use and the openings are disposed either wholly above or wholly below the liquid level in the ground, escape of herbicide will be prevented. An appropriate means is provided for propelling the applicator over a lawn with the wheels supporting the absorbent drum-surface spaced above the ground.
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