A urine test can detect THC for up to 30 days after use. THC is detectable in blood for the shortest time, up to 12 hours, but can stay longer in heavy users. Hair tests show THC use for the longest ...

The global agricultural sector stands on the brink of a technological transformation as AI and computer vision start reshaping how farmers manage weeds, one of the oldest and costliest challenges in ...

Researchers studying six years of highway fatalities in one Ohio county found more than 40% of 246 autopsied drivers tested positive for cannabis. Their findings, presented to the American College of ...

Introduction: With the continuous advancement of agricultural technology, automatic weed removal has become increasingly important for precision agriculture. However, accurate weed identification ...

Super weed found in 3 more North Dakota counties; expert says threat is 'eye-opening' The potentially devastating weed Palmer amaranth has been documented in three more North Dakota counties, raising ...

Cannabis is getting stronger, research has shown — and so are its health risks. Two new studies raise red flags about how marijuana use may increase paranoia and mental health struggles, especially ...

Czech startup Skymaps recently announced the launch of Zoneye, an AI model that learns to identify local weed populations. Trained to recognize 37 common weed species, Zoneye pinpoints their exact ...

What does that say about our young people using cannabis if it’s in the same federal substance control category as heroin? My goal is to balance the benefits of weed and the logical reasons we should ...

North Dakota Agriculture Commissioner Doug Goehring has announced a $300,000 grant to fund a new drone-based weed detection project aimed at improving early identification of noxious weeds in soybean ...