An ASU study of illicit weed seizures in Arizona — that is, pot grown and bought outside dispensaries — found safety risks.

After recreational use of weed was legalized, several colleges around Arizona began offering credited courses. Industry experts explain why these are important.

First, the numbers. Trump imposed 10% tariffs on all imports and slapped stiffer levies on dozens of countries, including 34% ...

Get set for a crash course on marijuana terminology you'll hear in this podcast. We’ll also go over the genetic makeup of the ...

Many early spring weeds are easy to pull up, preventing future growth. Avoid using herbicides on easily removable weeds and consider the environmental impact. Some weed killers can damage trees ...

Illicit cannabis seized in Arizona and California contains dangerously high levels of Fusarium mycotoxins, according to a new ...

Weed can contain mold ... an assistant professor at Arizona State University who authored the study. For example, a contaminant might lead to a recall in one state. But another state may not ...

The Drug Enforcement Agency currently classifies ibogaine as a Schedule 1 substance, in the same league as heroin and weed, making it inaccessible in the U.S. Sinema wants an Arizona-based ...

Wet weather likely contributed to the increased growth of grass and weeds, the report said ... which pollen or mold is causing you trouble. Arizona Republic reporter Meredith G.