Organic weed control in orchards is far more difficult than conventional weed control, reported the Daily Democrat. The story was written by Bob Johnson for AgAlert.

The most effective organic approach to weed control is a combination of cultural practices and organic herbicides, said John Roncoroni, UC Cooperative Extension advisor in Napa County, at a pear weed control field meeting.

"This is the wood mulch from last year," Roncoroni pointed out at the field day. "As you can see, the grass is growing on the edges, but it's held up pretty well. This is after a...