SACRAMENTO — A state board on Thursday banned unnecessary hand-weeding on farms to protect workers from back injuries, acting on an emergency basis to fix a problem they had discussed for a decade.

The future of weeding is here, and it comes in the form of a robot. Specialty crops such as lettuce, broccoli, tomatoes, and onions may be the first to benefit. The future of weeding is here, and it ...

Discussing superweeds, you say that hand weeding crops is effective, though costly (22 June, p 12). But it can be effective only for crops grown in narrow rows with wide spaces between rows that ...