(CNN) — Using medical or recreational marijuana to ease symptoms of numerous mental health conditions doesn’t work, according to two new analyses of existing gold-standard research. Medical marijuana ...

Using medical or recreational marijuana to ease symptoms of numerous mental health conditions doesn’t work, according to two new analyses of existing gold-standard research. Medical marijuana includes ...

To get the upper hand on pesky weeds, it's tempting to reach for commercially available herbicides. However, the active ingredients of many of these products, such as glyphosate, have been linked to ...

Lansing — The state's marijuana regulator is instructing marijuana retail shops and provisioning centers to stop referring to themselves as dispensaries, stressing that the term, legally, is reserved ...

Drone-based weed detection systems can look impressive during early trials. Teams fly drones over test plots to capture high-resolution images that distinguish crop plants from surrounding weeds. This ...

The Hg LaserWeeder in action during a product launch in Wuhan, China. According to Huagong Technology, the robot identifies and destroys weeds within 5 milliseconds. Photo: Xinhua Robotic weed ...

Legalization of the drug without much regulation has led to public health challenges. By Emily Bazelon David Leonhardt and German Lopez Produced by Jillian Weinberger More than a decade ago, The New ...

Smart sprayers powered by artificial intelligence could help Midwest corn and soybean growers cut foliar herbicide use — and trim input bills — without sacrificing weed control, according to new ...

President Trump's long-anticipated executive order to loosen U.S. restrictions on marijuana promises to bring immediate relief for cannabis businesses — but only in some respects. And although ...

Any amount of regular marijuana use has a negative impact on teens' academic performance, new research suggests. Using cannabis products just once a month was associated with worse grades and more ...