Canadian marijuana stocks went on a wild ride on Wednesday as a number of the companies’ shares soared in the morning and were later halted after massive spikes in trading.

The country’s publicly-traded marijuana companies, including Canopy Growth Corp (CGC.TO), Aurora Cannabis Inc (ACB.V), Mettrum Health Corp (MT.V), Aphria Inc (APH.V), OrganiGram Holdings Inc (OGI.V), and Supreme Pharmaceuticals Inc (SL.CD) were all halted for brief periods.

Smith Falls, Ont.-based Canopy was halted five separate times on Wednesday. Its stock surged nearly 30 per cent, and ended down 15.24 per cent to close at $11.40 per share. More than 24 million shares of Canopy changed hands on Wednesday.

Huge piles of moldy marijuana in Southern Oregon are going up in smoke this fall after record rains in October took a toll on many crops.

"At first I was freaking out about how much we are losing," said Brent Kenyon, a cannabis activist who helped craft the state's rules on pot. "But I've heard a lot of really sad stories from people who lost a majority of their crops."

Kenyon estimates about 20 percent or more of his crop will be burned at his farm near White City, reports the (Medford) Mail Tribune.

Overall, this will be a tough year for growers, who faced an onslaught of russet mites in the summer and then mold in the fall, Kenyon said. The mold destroys the marijuana flowers and spreads quickly, particularly after heavy rains.

Retrofit existing greenhouses or is it better to purpose build greenhouses for marijuana growing?

Just before the election I read an article about California pot growers paying millions of dollars for old greenhouses in the Salinas Valley. After the results of the US marijuana elections greenhouse property values are likely increasing in eastern states like Massachusetts and Maine as much as they are in the West.

After months of paperwork and navigating bureaucratic red tape, University of Nebraska-Lincoln researchers have planted their first crop of legal hemp.

The Lincoln Journal Star reports that about 150 plants with the distinctive frond leaf, previously relegated to roadside ditches, are nestled in warm and slightly humid greenhouses on UNL’s East Campus.

Industrial hemp has almost none of the psychoactive component tetrahydrocannabinol (THC), found in its cousin marijuana, but the family relationship has gotten both plants lumped together as Schedule I drugs along with heroin, LSD and ecstasy.

“You can get higher smoking a corn plant than you can on this stuff,” said Tom Clemente, a professor of biotechnology and one of two UNL researchers growing the plants.

According to recent data from the Associated Press, there are now more than 300 U.S. banks and credit unions that can handle transactions for cannabis businesses. With more than 25 states having legalized the sale of marijuana in some form, more and more cannabis companies are using banks throughout their daily business.

However, given restrictions that come along with opening bank accounts in the marijuana industry, many cannabis business owners simply don’t understand the requirements for doing business with a bank. To help you get started, this guide will provide the basics on how to open a bank account for your cannabis business.

Legalization of medical marijuana in more than half the states has created a booming market for medicinal and personal care products.

A new report shows sales of cannabis-based medicinal and personal care products containing cannabidiol (CBD) are likely to skyrocket in the next four years.

The market for CBD products will reach $2.1 billion in sales by 2020, according to projections from “The CDB Report” from the Hemp Business Journal. That’s a huge leap from the estimated $115 million in CDB sales expected in 2016, making CBD among the fastest growing segments of the legal marijuana and hemp industries.

We're still in the infancy of discovering all of the use cases for blockchain technology, but the legal cannabis industry is embracing the evolving immutable ledger in many creative ways.

Last Tuesday, America made a lot of decisions. We cast votes that will shape what our country looks like over the next handful of years and beyond. Yet, for all the surprises election night brought to many, everything went according to plan on the cannabis legalization front.

Aurora Cannabis Inc keeps climbing after posting strong earnings and its latest operations update. Investor enthusiasm for the leading Canadian cannabis players like Aurora, Canopy Growth Corp, and Aphria Inc continues. Aphria just boosted its war chest and Canopy became Canada’s first billion dollar plus cannabis unicorn after its tremendous bull run. With a current market cap of C$669 million, is Aurora Cannabis next to have a billion dollar market cap?

Canada's medical-cannabis companies say their American counterparts will continue to be stifled under the upcoming Trump presidency, during which Canadian growers will scale up to meet the domestic demand for recreational pot while preparing to enter the U.S. market as global industry leaders once prohibition there ends.

Last Tuesday, voters in California, Massachusetts, Nevada and Maine legalized the sale of recreational marijuana, joining four western states and Washington, in allowing adults to use the drug. Florida, Arkansas, Montana and North Dakota also voted for medical cannabis, which is now supported by a total of 29 states.

A B.C. Human Rights Tribunal case involving a gymnastic coach suspended after co-workers claimed she was “stoned” at work when she used medical marijuana raises a difficult issue for employers, according to experts.

How do you balance the needs of an employee who requires medical marijuana with ensuring there is no “intoxication” at work, asks adjunct professor Mark Haden of the University of B.C.’s School of Population and Public Health.

“The real issue is impairment testing, and that’s hard to do right now. Urine analysis testing isn’t useful, since marijuana can be detected for 30 days — long after any psychological or physical effect has passed,” he said.

National policies on marijuana use are needed for the workplace, Haden said.